JP6242046B2 - Rotary valve with actuator - Google Patents

Description

The present invention relates to a rotary valve with an actuator for use in a pipeline of a piping system .

Piping systems, gas or liquid, has a conduit through which fluid flows, such as a powder, the device by passing a fluid through the conduit, the various types of equipment, so as to function like device. The pipe is provided with a pipe (pipe), a joint, a valve, and the like, and the valve is joined to the pipe through the pipe and the joint. After joining, by controlling the opening and closing of the valve, the fluid flowing in the pipe can be passed, stopped, and the flow rate can be controlled.

  In the case of configuring the pipe line of the piping system, for example, the pipe connection component of Patent Document 1 is used. This pipe connection part has a male joint flange and a female joint flange, and the valve and the pipe are joined by these joint flanges. In general, in order to join the valve and the pipe, a pipe joint having a screw, a flange, and the like is used. In these joints, the body through which the fluid passes is an integral type (one-piece structure). As an example of a conduit having a simpler structure than that of Patent Document 1, for example, there is the one shown in FIG. In the figure, a valve 1 is joined to a pipeline 4 via a pipe member 2 and a joint member 3 made of a cheese tube. On the other hand, when a bypass channel is provided in a pipeline, for example, a pipeline having the configuration shown in FIG. 25 is often used. In the pipe 10 of the figure, a joint member 3 that is a cheese pipe is used to provide the bypass passage 12 in the main passage 11, and the main passage 11 and the bypass flow branched by the joint member 3 are used. The valve 1 is joined to the passage portion 12 via the pipe member 2. The flow path is also provided with a union joint member 7, a control valve 8, and an elbow member 9.

As the valve 1 used in the pipe lines 4 and 10, ball valves are usually increased. Ball valves have less pressure loss than globe valves and butterfly valves, do not require long strokes like gate valves, and taper processing, valve body / body wrapping processing, grease application, etc., like cocks. There is an advantage that it is not necessary to improve the processing accuracy of the stop surface.
As this type of ball valve, for example, a ball valve disclosed in Patent Document 2 is known. As in the valve of Patent Document 2, a ball valve having a general structure includes a spherical valve body and a ring-shaped seat member, and the seat member is provided on the primary and secondary sides of the valve body flow path. It is mounted so as to be orthogonal. Thus, the valve body is rotatable in a state in which both sides are sandwiched between the seat members and cannot move in the mounting direction.

JP 10-325491 A Japanese Utility Model Publication No. 2-29360

  In the piping system, in order to realize the functions as various fluid control devices and various piping facilities, piping design, construction and maintenance are performed using the valve 1 provided through the pipe member 2 and the joint member 3 described above. It is. In this case, since the ball valve of Patent Document 2 has a structure in which a spherical valve body is sandwiched between ring-shaped seat members inside the body, the entire valve becomes large and the internal structure becomes complicated. When this ball valve is used in a piping system, piping parts such as joints, pipes, and valve devices are individually required, and the quantity of these components becomes very large, resulting in a complicated pipe line. For example, in the pipe line 4 of FIG. 24, in order to be able to open / close or control the branch flow path portion 6 provided from the main flow section 5, the joint member 3 for configuring the branch flow path and the primary side of the joint member 3 are provided. Each valve 1 is provided, and another valve 1 is provided on the branch flow path side in order to open / close or control the branch flow path portion 6 branched by the joint member 3. In the pipe line 10 of FIG. 25, in order to form the bypass flow path portion 12 from the main flow path portion 11, a large number of valves 1 and pipe members 2 are required in the main flow path portion 11 and the bypass flow path portion 12. Furthermore, the joint member 3 is also required, and the number of components increases.

  For these reasons, in the conventional piping system, (1) a large piping space is required, (2) the entire apparatus is enlarged, (3) the total weight of the piping is increased, (4) piping equipment and piping The number of components of the equipment will increase. (5) It will take man-hours for plumbing work, and the construction period will be longer and will require construction costs. (6) Material cost, man-hours and construction time for maintenance will increase. (7) Due to the large quantity, problems such as complicated operation of equipment and devices arise.

  Further, as disclosed in Patent Document 2, since the ball valve has a structure in which a seat member mounted on the valve body is sandwiched in the valve body, a space for sandwiching the seat member in the valve body is required, and the full bore In order to store the valve body for securing the flow path in the body, the body is divided and the seat member is sandwiched, the structure becomes complicated, and it is difficult to prevent external leakage. When assembling the valve, it is necessary to assemble the ball valve body and stem while placing the seat member at a predetermined position in the valve body, so the processing accuracy of the parts is required, making assembly and disassembly difficult, and mounting to the pipeline And maintenance becomes difficult.

  When the ball valve is operated, if the fluid pressure is large, a strong force is applied from the valve body to the secondary side seal member, so that the operability is deteriorated and the wear of the seal member is also increased. For this reason, the sealing performance tends to be lowered.

The present invention has been developed in order to solve the above-described problems, and the object of the present invention is to construct a pipeline by reducing the size of the opening and closing part of the flow path and simplifying the internal structure. piping can simplify pipe by reducing the number of parts, assembling and maintenance of the pipeline is also easier excellent while exhibiting flow characteristics high operability and sealing property and an actuator with rotary valve having both Is to provide.

In order to achieve the above object, the invention according to claim 1 includes a valve body housing portion having an inner peripheral hemispheric surface in a joint body having at least two outflow inlets, and a cylindrical opening opened from the valve body housing portion. The valve body is inserted into the valve body storage section from this opening, and a spacer is attached to the opening from above this valve body through a sealing material, and a bush is attached to the opening from above this spacer The valve body is provided so as to be rotatable by the rotation operation portion through the sealing material while being positioned in the vertical direction by the bush, and the valve body is provided with a through hole communicating with the outflow inlet and in a crossing direction of the through hole. A mounting groove facing the outflow inlet is formed, a seal member for closing the outflow inlet is mounted in the mounting groove, and a support stem having the same shaft diameter as that of the rotation operation portion is provided on the opposite side to the rotation operation portion of the valve body. Provide this support stem with the joint body opening Pivotally attached to the formed insertion opening in the opposite position, a rotary valve which is connected to the output shaft of the actuator equipped with the support stem to the joint body.

The invention according to claim 2 is a rotary valve in which a rotation operation part is formed integrally with a valve body, and a valve unit is constituted by the valve body and a seal member.

According to the first aspect of the invention, the structure in which the valve body is inserted from the opening of the joint body can simplify the joint body and simplify the internal structure, and can be easily assembled. For this reason, a pipe line can be simplified, reducing the quantity of piping components. A valve unit can be assembled and the valve function can be exhibited in a state where the joint state of the pipe line is maintained without removing the joint body from the pipe line of the piping system. After assembly, the valve body is positioned in the vertical direction by the bush via the spacer, so that the valve body is prevented from wobbling or falling off to the opening side, and the valve body is held at a predetermined position.
Compared to globe valves and butterfly valves, etc., pressure loss is reduced, and without using a stroke in the direction perpendicular to the stem flow path as in the case of gate valves, it is possible to reduce the size of the valve. Thus, operability and sealing performance can be ensured without processing sealing surfaces such as valve bodies and sealing members with high accuracy. Durability can be improved by suppressing wear of the seal member, high sealing performance can be maintained, and since it has a simple structure and few parts, it is economical and easy to perform maintenance such as assembly and replacement of the seal member. Become.
When flowing the fluid, the energy loss at the minute opening is suppressed to a minimum while suppressing cavitation at the minute opening, and the flow coefficient is reduced by reducing the loss coefficient at the full opening. Furthermore, since there is no sealed space by the sealing member, the abnormal pressure increase value can be lowered, and therefore, damage and malfunction of the valve body sealing member and the body container are avoided. As described above, it is possible to improve the function as a valve by minimizing the loss at the time of inflow / outflow of the fluid, and to flow the fluid by a smooth operation as compared with a general ball valve. Therefore, it is possible to incorporate the advantages of the ball valve, the cock, etc. while eliminating the disadvantages of the ball valve.
In particular, by making the shaft diameters of the rotary operation part and the support stem the same, the pressure receiving thrust due to the fluid pressure in the body is canceled out, and the valve element operating torque is the friction torque that the seal member slides in the joint body. In the case where the operation torque of the valve is lowered and the operation is performed using the actuator, the output torque of the actuator can be lowered to reduce the overall size.

According to the invention which concerns on Claim 2 , a structure can be simplified and an assembly | attachment property can be improved and a stem, a stem seal material, and a valve body seal member can be mounted | worn simultaneously with attachment of a valve body. After the assembly, the valve body can be accurately operated in proportion to the rotation operation of the stem by the stem integrated with the valve body.

It is the perspective view which showed an example of the pipe line using the piping system of this invention. It is the perspective view which showed the other example of the pipe line using the piping system of this invention. It is the circuit diagram which showed the pipe line of the bypass flow path by the piping system of FIG. It is the circuit diagram which showed the comparative example with the piping system of this invention. It is the circuit diagram which showed the pipe line by the pneumatic piping of a piping system. (A) is the circuit diagram which showed the pipe line of the piping system of this invention. (B) is the circuit diagram of the pipe line which showed the comparative example with (a). It is a circuit diagram which shows the example which applied the piping system of this invention to the sprinkler equipment. (A) is the circuit diagram which showed the state at the time of standby of the sprinkler installation of FIG. (B) is the circuit diagram which showed the state at the time of fire extinguishing and a test of the sprinkler installation of FIG. (A) is the circuit diagram which showed the state in emergency of the sprinkler installation of FIG. (B) is the circuit diagram which showed the state at the time of draining of the sprinkler installation of FIG. It is the circuit diagram which showed the comparative example of the sprinkler equipment. It is the longitudinal cross-sectional view which showed 1st Embodiment of the joining device material. It is sectional drawing which showed the state which connected the meter to the connector material of FIG. It is the longitudinal cross-sectional view which showed one Embodiment of the rotary valve. FIG. 13 is an exploded perspective view of the rotary valve of FIG. 12. It is the longitudinal cross-sectional view which showed the body of the rotary valve of FIG. (A) is sectional drawing which showed the opening degree holding state by a ball plunger. (B) is the schematic explanatory drawing which showed the state of the ball plunger of (a) a valve body. It is sectional drawing which shows the state from which the ball plunger removed. It is a longitudinal cross-sectional view which shows 2nd Embodiment of a rotary valve. (A) is the longitudinal cross-sectional view which showed 3rd Embodiment of the rotary valve. (B) is AA sectional drawing of (a). (A) is a top view which shows a clamp band. (B) is a right side view of (a). It is the perspective view which showed the other example of the pipe line using a piping system. (A) is a longitudinal cross-sectional view which shows the state which removed the clamp band of Fig.18 (a). (B) is a longitudinal cross-sectional view which shows the state which removed the internal component. (A) is the longitudinal cross-sectional view which showed 4th Embodiment of the rotary valve. (B) is BB sectional drawing of (a). (A) is the longitudinal cross-sectional view which showed 5th Embodiment of the rotary valve. (B) is CC sectional drawing of (a). It is the perspective view which showed an example of the pipe line of the conventional piping system. It is the perspective view which showed the other example of the pipe line of the conventional piping system.

  Below, the piping system in this invention, embodiment of a connector material, and a rotary valve, and an effect | action are demonstrated in detail based on drawing. FIG. 1 shows an example of a pipeline using the piping system of the present invention, and FIG. 2 shows another example of a pipeline using the piping system.

  As shown in FIGS. 1 and 2, the piping system of the present invention includes pipes 22 and 23 including a pipe 20 and a joint body 21 for joining the pipe 20. A later-described valve unit 25 shown in FIG. 12 is provided and a three-way valve is provided. The pipes 20 of the pipe lines 22 and 23 of the piping system are made of metal, and are joined to the joint body 21 by appropriate means such as screwing.

A pipe line 22 of the piping system shown in FIG. 1 is provided as, for example, a pneumatic pipe for factory equipment, and a joint body 21 provided with a valve unit 25 is connected in series via a pipe 20. Branch passages 24 and 24 are provided by the joint body 21.
2 is used as a bypass pipe for general equipment and devices, and a main body 30 having a joint body 21 having a valve unit 25 connected in series via a pipe 20, a union joint 26, and a control valve 27. The main flow path 30 is provided with a bypass flow path 31. In this case, an elbow pipe 32 is also used as a component constituting the pipe line 23, and the bypass flow path 31 is formed from the main flow path 30 using the elbow pipe 32.

The pipeline of the piping system of FIG. 2 is shown by the circuit diagram of FIG. In the circuit diagram of FIG. 3A, the main flow path 30 has two joint bodies 21 and 21, which are three-way valves, a control valve 27, and union joints 26 and 26 on the primary and secondary sides of the control valve 27. Has been placed. The bypass flow path 31 is branched by the joint body 21 on the primary side of the main flow path 30 and joined to the joint body 21 on the secondary side of the main flow path 30 via the two elbow pipes 32 and 32.
With this configuration, unnecessary cheese pipes and valves can be reduced, so that the number of piping parts can be reduced, the bypass flow path 31 can be made compact, the material cost of the piping parts can be reduced, the weight of the piping can be reduced, and the valve unit. 25 valve operations are simplified. Furthermore, by attaching a purge valve (not shown) to the joint body 21, it is possible to purge each block constituting the bypass flow path 31, and to perform pressure inspection, fluid sampling, fluid purge, pressure relief, etc. in the pipe line. .

  In the case of flowing a fluid through the main flow path 30 in the pipe line 23 of the piping system, the valve units 25 of the joint bodies 21 and 21 on the primary and secondary sides are set to the port positions shown in FIG. The fluid passage port toward the bypass channel 31 is sealed. Thereby, for example, in the normal use state, the fluid flows through the main flow path 30 in the direction indicated by the arrow while controlling the flow rate and pressure by the control valve 27.

  On the other hand, when the fluid is allowed to flow through the bypass flow path 31, as shown in FIG. 3 (c), the valve unit 25 of the joint body 21 on the primary side seals the fluid passage port in the direction of the main flow path 30. The fluid passage port of the upstream main passage 30 is sealed by the valve unit 25 of the secondary joint body 21. Thereby, for example, during maintenance, the fluid flows through the bypass flow path 31 in the direction indicated by the arrow.

  In FIG. 4, the pipe line in the conventional piping system shown in FIG. 19 is shown as a comparative example. In the conventional pipe line 10, as shown in FIG. 4A, a joint member 3 that is a cheese pipe, a valve 1, a union joint member 7, and a control valve 8 are provided in the main flow path portion 11. The valve 1 and the union joint member 7 are arranged on the primary and secondary sides of the control valve 8. The bypass flow path 12 is branched by the cheese pipe 3 on the primary side of the main flow path section 11 and is configured in the order of the elbow member 9, the valve 1, and the elbow member 9, and then the secondary side cheese pipe of the main pipe. 3 joins.

  In normal use in the pipe line 10, when a fluid is allowed to flow through the main flow path portion 11, the valve 1 of the bypass flow path portion 12 is closed as shown in FIG. The flow rate and pressure are controlled by the control valve 8 while the two valves 1 and 1 are opened. Usually, in order to perform maintenance, it is necessary to periodically remove the control valve 8 from the main flow path portion 11, and thereafter, replacement of parts, cleaning, gauge correction, and the like are performed. At this time, since the fluid is made to flow in the pipe line 10, it is necessary to flow the fluid to the bypass flow path portion 12, and as shown in FIG. The valves 1 and 2 on the secondary side are closed, and the valve 1 of the bypass passage section 12 is opened. In this state, the control valve 8 is removed from the pipe line 10 by the union joint member 7.

In FIG. 5, the example which applied the piping system of this invention to the pipe line of the pneumatic piping provided in factory facilities etc. is shown, FIG.5 (a) shows the pneumatic piping by the piping system of this invention. Yes. In the figure, a pipe line 35 of a pneumatic pipe is attached to a main flow path 37 in which a base valve 36 is disposed with an operation handle (not shown) attached to a joint body 21 having a three-way valve function provided with a valve unit 25 described later. Are joined together. The joint body 21 branches into branch channels 39 and 39 and a purge channel 40. A pressure gauge 42 is connected to the purge flow path 40 via a valve 41. The valve 41 is provided to seal the main flow path 37 in order to disassemble only the pressure gauge 42 when disassembling the pressure gauge 42 during maintenance and calibration.
In this pipe line, by operating the operation handle, the joint main body 21 can supply and stop the fluid individually or all of the branch flow paths 39 and 39 and the purge flow path 40, and the valve 41 is opened and closed to the pressure gauge 42. Fluid can be supplied.
This pipe line 35 can reduce the number of cheese pipes and valves used, reduce the piping space, and satisfy the opening / closing switching operation with one joint body 21.

  In FIG.5 (b), the pipe line of the conventional factory equipment piping is shown as a comparative example with Fig.5 (a). In this pipe line 45, as shown in the figure, a main flow path part 47 provided with a base valve 46 is provided with a purge flow path part 49 via a joint member 48 made of a cheese pipe. In order to secure as many (two in the figure) flow paths for the branch pipes, the main flow path portion 47 is further provided with a joint member 48 that is a cheese pipe. A pressure gauge 51 is provided in the purge flow path portion 49 via a valve 50, and open / close branch valves 53 and 53 are provided in the branch flow path portion 52 branched by the cheese pipe 48. By operating the branch valve 53, the branch flow path section 52 is opened and closed, and fluid can be supplied to a control device (not shown) provided on the secondary side of the branch valve 53. The branch valve 53 is required to be separated from the main piping unit 47 and used independently according to the use status and maintenance status of the control device at the branch destination. Thus, in the conventional pipe line 45, the number of joint members 48 and valves increases, and the whole pipe line becomes complicated and at the same time increases in size.

  In FIG. 6, the example which applied the piping system of this invention to the sprinkler installation is shown. With the revision of the Fire Service Law (enforced in April 2009), the use of tap water has been taken into account in the initial fire extinguishing. In that case, by using the piping system of the present invention, the conventional sprinkler equipment can be simplified, and it can be arranged in a narrow pipe space such as a house. In the pipeline 60, in this piping system, in addition to the two joint bodies 21 and 21 having the valve unit 25 and having the three-way valve function, one automatic valve having the valve unit 21 and having the four-way valve function is provided. And a check valve 63, a drain valve 64, a cheese pipe 65, a union joint 66, a primary pressure gauge 67, and a secondary pressure gauge 68.

  The check valve 63 is provided on the secondary side of the water supply side (not shown), and the joint body 21 having a three-way valve function is joined to the check valve 63. A joint body 62 and a cheese pipe 65 having a four-way valve function are joined to the branch channels 24 and 24 of the joint body 21, respectively. In addition to the branch channel 24 of the joint body 21, the branch body 70 branches to the four branch channels 70 of the joint body 62 via the drain valve 71 and the union joint 66. A primary pressure gauge 67 is connected via the flow path 24 and the purge flow path 72. The joint body 62 is an automatic valve capable of controlling the rotation of the valve unit 61 by a motor 73. In addition to the branch flow path 70 of the joint body 62, the branch flow path 24 of the joint body 21 on the secondary side of the joint body 62 is joined to the test drain pipe 69 and the cheese pipe 65. A secondary pressure gauge 68 is connected. A sprinkler head (fire extinguishing pipe) (not shown) is provided on the secondary side of the cheese pipe 65.

  In this way, by using the joint bodies 21 and 62 in the pipe line 60 of the sprinkler facility, the number of piping parts such as valves and joints can be reduced compared to the sprinkler having the conventional piping configuration shown in FIG. 9 described later. As a result, the cost of piping material can be reduced, the weight of the device can be reduced, the size of the device can be made compact, and the reliability of external leakage from the piping can be improved. Moreover, even when the number of valves is reduced in this way, the same function as the conventional one is exhibited, so that the operation of the device corresponding to the reduced number of valves can be omitted, and the device can be handled easily. Therefore, in an apparatus that requires urgency, it is possible to reduce handling time and occurrence of erroneous operations.

  In the standby state of the sprinkler facility shown in FIG. 7A, the port position where the valve unit 25 of the joint body 21 communicates only with the joint body 62 side is used, and the port position of the valve unit 61 of the joint body 62 is the union joint 66. The joint body 21 side on the side is closed. Thereby, when the tap water is supplied, the tap water flows from the joint body 21 in the joint direction 62, the fluid stops by the joint body 62, and flows to the secondary side sprinkler head side of the cheese pipe 65. Is prevented.

  During fire extinguishing and testing shown in FIG. 7B, the valve unit 61 of the joint body 62 is rotated while maintaining the port position of the valve unit 25 of the joint body 21, and the joint body 21 on the union joint 66 side is rotated. Set the port position to communicate with. At this time, by setting the valve unit 25 in the joint main body 21 to a port position in a state of communicating with the cheese pipe 65, the supplied tap water is supplied from the joint main body 21, the joint main body 62, the joint main body 21, and the cheese pipe. It is supplied to the sprinkler head side via 65.

  In the emergency shown in FIG. 8A, the port position of the joint body 21 connected to the sprinkler head side is set to the port position, and the port position of the valve unit 61 of the joint body 62 is closed as shown in FIG. Rotate to state. Thereby, the supplied tap water flows directly from the joint body 21 to the sprinkler head via the cheese pipe 65.

  At the time of draining shown in FIG. 8B, the valve unit 25 of the joint body 21 is set to the port position in a state where the tap water supply side is sealed, and the joint body 62 and the valve units 61 and 25 of the joint body 21 are connected. The port positions are communicated with the drain pipe 71 and the test drain pipe 69, respectively. In this case, the tap water accumulated up to the sprinkler head can be discharged to the outside from the drain pipe 71 and the test drain pipe 69.

  In FIG. 9, the pipe line of the conventional sprinkler equipment is shown as a comparative example. In the pipe line 80 of this sprinkler equipment, in order to switch the flow path similar to the pipe line in the sprinkler equipment of FIG. 6, a manual three-way ball valve 81, an electric three-way valve 81 ′, a stop cock 82, a check valve 83, In addition to the emergency manual release valve 84, the drain valve 85, and the water discharge valve 86, the four cheese members 87, the elbow members 88, the union joint member 89, the drain pipe member 90, the test drain pipe member 91, and the primary pressure gauge 92 The secondary pressure gauge 93 is necessary. As described above, in the pipe line 80 of the conventional sprinkler facility, the number of piping parts increases and the flow path becomes complicated, so that installation in a narrow pipe space such as a house becomes difficult.

  From the above, the piping system of the present invention can simplify the pipeline by reducing the number of piping parts. As a result, (1) the piping space can be reduced, (2) the entire system can be miniaturized, (3) the total weight can be reduced, (4) the components of piping equipment and piping equipment can be reduced, and (5) piping. The number of construction work can be reduced, the construction period can be shortened, and the construction cost can be reduced. (6) The material cost, man-hour and construction period during maintenance can be reduced. (7) Because the quantity of piping parts is small, Usefulness such as easy operation.

Subsequently, a joint body and a valve unit used in the above-described piping system will be described. By using the joint body and the valve unit, it is possible to provide a joint device and a rotary valve that can be joined to the piping system. As described above, the joint body may be a joint body 21 having a three-way valve function, a joint body 62 having a four-way valve function, a two-way valve, or a joint body that can constitute a multi-way valve rather than a four-way valve. Is possible.
As shown in FIGS. 10 and 11, the joint body 21 serving as a body is formed in a one-piece structure using, for example, bronze, brass, stainless steel, or the like, and has at least two outlets 110 for pipe connection. In the embodiment, three outflow ports 110 are provided. The joint body 21 is provided with at least one opening 111 orthogonal to the flow path, and the valve unit 25 is assembled from the opening 111 by a top entry structure so that the outflow inlet 110 can be opened and closed.

  In the vicinity of the bottom portion 112 of the joint body 21, the periphery of the outflow inlet 110 is formed in a semispherical shape to form an inner peripheral hemispherical surface 113, and a valve body storage portion 115 having the inner peripheral hemispherical surface 113 is provided. ing. A cylindrical opening 111 is formed so as to open following the valve body storage 115. The inner peripheral hemispherical surface 113 is formed in a substantially hemispherical concave shape by counterbore processing of a substantially hemispherical shape, and a valve body 116 can be attached to the bottom 112 of the inner peripheral hemispherical surface 113. An insertion hole 117 is formed in the bottom 112 of the valve body storage 115. The outflow inlet 110 is formed in communication with the valve body storage portion 115, and a female screw 118 is formed on the inner peripheral side of the outflow inlet 110, and the pipe 20 can be connected to the female screw 118. In the present embodiment, the joint body 21 is joined to an external pipe by screw joining, but may be provided so as to be connectable to the external pipe by flange joining (not shown) or other joining means.

  The valve unit 25 shown in FIG. 12 includes a valve body 116, a seal member 120, and a rotation operation unit (stem) 121, and these are assembled. The assembled valve unit 25 can be assembled to the valve body storage unit 115 from the opening 111, and the outlet unit 110 can be opened and closed by the rotation of the valve unit 25. At the time of closing, the sealing member 120 can seal the outflow inlet 110 hermetically.

12 to 16, the valve body 116 has a hemispherical portion 122 formed in a hemispherical shape similar to the hemispherical inner peripheral surface 113 in part, and above the hemispherical portion 122. It has a substantially cylindrical circular outer periphery 123. In this embodiment, the outer peripheral surface of the valve body 116 is a hemispherical portion 122, and a circular outer peripheral portion 123 is formed on the hemispherical portion 122. The circular outer peripheral portion 123 is attached to face the cylindrical portion 124 formed inside the opening 111 of the joint body 21.
On the outer peripheral surface of the hemispherical portion 122, an intersecting through hole 127 that can communicate with the outflow inlet 110 and a seal member mounting groove 128 that faces the outflow inlet 110 in the other intersecting direction of the through hole 127. And are formed.

  The through hole 127 is formed substantially the same as the flow path diameter of the outflow / inlet port 110. Thus, when the through hole 127 is a full bore type, pressure loss can be suppressed. In addition to the full bore type, the through-hole 127 is a standard bore type in which the flow path diameter is one stage (reduced) than the full bore type, or a reduced bore type in which the diameter is reduced to two stages. It is also possible to provide it. Among these, in particular, the full bore type is most suitable for the above-described piping system because it can suppress the pressure loss and improve the flow characteristics as compared with other types.

  On the other hand, in the mounting groove 128, the sealing member 120 having elasticity capable of closing the outflow inlet 110 is detachably mounted. In the present embodiment, the mounting groove 128 is provided as a circular concave groove, and the seal member 120 is formed in a disk shape that can be fitted into the circular concave groove 128.

  On the upper surface side of the valve body 116, a rotation operation part 121 that performs fluid control by opening and closing the valve body 116 is integrally formed, and a sealing material 125 that is a valve body seal member is attached to the outer periphery of the rotation operation part 121. Is done. The rotation operation unit 121 may be provided separately from the valve body 116, and the rotation operation unit 121 may be assembled to the valve body 116. A support stem 129 that can be inserted into the insertion hole 117 is formed integrally with the lower portion of the valve body 116. When the valve unit 25 is inserted into the valve body storage portion 115, the support stem 129 is inserted into the insertion hole portion 117.

  The valve body 116 has a shape that can be inserted into the inner peripheral hemispherical surface 113, and a portion corresponding to the hemispherical portion 122 as long as the through hole 127 and the seal member 120 can be mounted in correspondence with the outflow inlet 110. However, the shape may be other than the hemispherical portion.

  The seal member 120 attached to the valve body is formed of a polymer material such as PTFE (polytetrafluoroethylene). The seal member 120 is provided so as to be able to seal the inflow port 110 by rotating integrally with the valve body 116 when the valve body 116 is rotated. Is done.

  As described above, by providing the valve unit 25 to the valve body storage portion 115 from the opening 111 of the joint main body 21 so as to be assembled, it is possible to attach a joint device by screw joining to the piping system. By this joining device, the joint function can be exhibited by not assembling the valve unit 25 to the joint body 21. On the other hand, when the valve unit 25 is assembled, the joining function can be exhibited while exhibiting the rotary valve function.

  In FIG. 10, a bush 131 is screwed to a female thread 111 a of the joint body via a male thread 130. A closed lid portion 132 is formed on the upper surface side of the bush 131, and when the bush 131 is attached to the opening 111, the joint device can be used as a joint. In this case, the number of outflow inlets 110 can be increased or decreased to provide a socket pipe, an elbow pipe, a cheese pipe, a cross pipe, or a joint branched further. In addition, when the joining device is used as a rotary valve at normal times and the bush 131 is attached as necessary, it can be used as a joint at the time of flushing or sterilization of a pipeline.

  As shown in FIG. 11, the bush 131 may be provided with a communication hole 135 that allows communication between the valve body storage portion 115 and the outside of the joint body 21. An instrument 136 such as a pressure gauge or a thermometer can be connected to the communication hole 135. When the instrument 136 is connected, the internal state of the joint body 21 can be confirmed via the instrument. Further, in addition to providing one communication hole 135 shown in FIG. 11 (a), two communication holes 135, 135 or a larger number of communication holes are provided as shown in FIG. 11 (b). A plurality of meters 136 may be connected. Furthermore, the communication hole 135 can be used as an inspection hole for various inspections or as a purge hole for air venting. The bush 131 may be used as a joint joint portion through the communication hole 135.

  When jointing equipment is provided in the piping system, this jointing equipment can be used to change the direction of the flow path, branch or collect flow paths, connect pipes, connect members of different pipe diameters, close pipe ends, Functions such as attachment of valves, absorption of expansion / contraction, and rotation or bending of pipes can be exhibited.

  As shown in FIG. 12, when a rotary valve is provided in the piping system, a valve unit 25, a spacer 140, and a bush member 141 are assembled to the joint body 21 in order to configure the rotary valve. The spacer 140 is formed to have an outer diameter that can be fitted into the opening 111, and a communication portion 142 into which the stem 121 can be inserted is provided at the center. An outer peripheral groove 143 is formed on the outer periphery of the spacer 140, and a sealing material 125 is attached to the outer peripheral groove 143. A male screw portion 144 that can be screwed into the female screw 111 a is provided on the outer peripheral side of the bush member 141, and a communication portion 145 for inserting the stem 12 is provided in the center like the spacer 140.

A valve body 116 (valve unit 25) is inserted into the valve body storage part 115 in the joint body 21 from the opening 111, and a spacer 140 is attached to the opening 111 from above the valve body 116 via a sealant 125, By attaching the bush member 141 to the opening 111 from above the spacer 140 by screwing, the valve element 116 can be rotated by the rotary operation unit 121 via the seal member 125 while being positioned by the bush member 141 in the vertical direction. It is the composition provided in. For this reason, even when a high pressure is applied to the valve body 116 or the internal pressure rises, the force by which the valve body 116 rises in FIG. It is possible to maintain high-precision valve body rotation operation and exhibits high sealing performance.
As described above, the joint body 21 corresponding to the three-way mouth cheese shown in FIG. 14 includes the three-way valve unit 25, the spacer 140, and the bush member 141 as shown in FIGS. A rotary valve is provided. A handle 146 is attached to the rotation operation unit 121, and the valve unit 25 is rotatably provided by the handle 146.

  The spacer 140 is a lock screw (not shown) provided by screwing at the position of the joint body 21 and has a blow-out proof structure that prevents the rotation due to rotation and pressure. For this reason, even when the bush member 141 is loosened in a pressurized state, the valve unit 25 is prevented from popping out by the pressure, and safety is maintained. Furthermore, by providing a lock screw, the spacer 140 can be positioned in a state adjusted in the vertical direction by the rotation of the bush member 141. As a result, the vertical position of the valve body 116 with respect to the joint body 21 is adjusted, and the dimensional error of the joint body 21 and the valve body 116 is absorbed, and the valve body 116 is accurately mounted at a predetermined position of the valve body storage portion 115. it can. Further, even when the seal member 120 is worn, the bush member 141 is rotated to adjust the positions of the spacer 140 and the valve body 116 and are pressed against the valve body housing portion 115 of the body to the position where the fluid is sealed. Pressure can be secured.

  Furthermore, as shown in FIG. 12, a ball plunger 150 is provided on the bottom surface portion 147 of the spacer 140 on the valve body 116 side, and the ball plunger 150 is disposed on the upper surface side of the corresponding valve body 116 facing the spacer 140. Locking portions 151 for locking the ball plungers are formed at 90 ° intervals as shown in FIG. When the valve body 116 is rotated by the handle 146, the ball plunger 150 is locked to the locking portion 151 every 90 °, so that the valve body 116 can be rotated every 90 °. In this case, the valve body 116 can be rotated 360 ° endlessly. During the rotation of the valve body 116, the internal fluid pressure is sealed by the two sealing materials 125, 125, so that it is applied only to the rotation operation unit 121, and the operation torque is kept low.

FIG. 16 shows a state in which the valve unit 25 is rotated by the rotation of the handle 146 from the state of FIG. FIG. 15A shows a state where the flow path is communicated by the valve unit 25, and at this time, the ball plunger 150 is fitted into the locking portion 151. In this manner, when the valve unit 25 is rotated and the through hole 127 communicates with the outflow / inlet port 110, the valve body 116 can be stopped at a predetermined position of the locking portion 151, and this state can be maintained. In addition, when the click feeling is obtained at that time, the rotation state of the valve body 116 can be confirmed. Since the seal member 120 is attached to the valve unit 25, it can be confirmed that the seal member 120 has been operated until the fluid is closed by closing the predetermined inlet / outlet port 110 with the seal member 120.
FIG. 16 shows a state where the ball plunger 150 is disengaged from the locking portion 151. In this case, since a click feeling is not obtained, it can be confirmed that the valve body 116 has an intermediate opening degree.

  In this rotary valve, the valve unit 25 in FIG. 15B is rotated with respect to the joint body 21 shown in FIG. 14, so that the through hole 127 and the seal member 120 of the valve body 116 and the outflow inlet 110 are connected. Depending on the positional relationship, the four patterns can be switched by 90 ° by an index operation. That is, if the outflow inlet 110 in FIG. 14 is an outflow inlet 110a, an outflow inlet 110b, and an outflow inlet 110c, respectively, the outflow inlet 110b and the outflow inlet 110c are connected to each other. The state where the outflow inlet 110a is closed by communication, the state where the outflow inlet 110a and the outflow inlet 110c are connected and the outflow inlet 110b is closed, and the state where the outflow inlet 110a and the outflow inlet 110b are connected and the outflow inlet 110c is closed It is possible to switch to the following four states.

  Here, in a general ball valve, a seal ring is arranged on the outflow inlet side, and a ball valve body is arranged at a position where a contact surface pressure necessary for sealing is applied to the seal ring. Is configured to close the fluid by rotating. In such a ball valve, in order to securely close each outflow inlet, the seal ring is disposed at a position where the ball valve body spherical surface and the seal ring come into contact with each other in a state where the diameter of the seal ring is larger than the outflow inlet. For this reason, it is necessary for the ball valve body and the seal ring to interfere with the fluid flow direction.

  Furthermore, in order to close two or more outflow inlets, a seal ring and a fixing member for fixing the seal ring are required. Therefore, in addition to increasing the complexity of the valve, increasing the size, and increasing the weight as the number of outflow inlets increases, high dimensional accuracy of each component is also required.

  In addition, since the ball valve body and the seal ring are disposed at the positions where they interfere with each other as described above, the structure inside the valve is complicated in order to prevent deformation and breakage of the seal ring due to the ball valve body. For example, in a one-piece structure floating valve, a separate insert from the body is provided, and the insert is screwed in from a pipe connection portion of the body to tighten the seal ring and the ball valve body along the flow path direction. . In the 2- to 4-piece floating valve, a cap is provided separately from the body, and the cap is screwed in from the flow direction of the body to tighten the seal ring and the sphere along the flow direction. . The trunnion valve has a structure in which each seal ring is tightened so as to come into contact with the ball spherical surface along the flow path direction from the pipe connection portion of the body.

In these cases, the number of assembly man-hours increases due to an increase in the number of outflow inlets.When replacing the seal ring or consumable parts due to wear or wear, etc., remove the entire valve from the piping, disassemble the valve and replace the parts. It also takes time and effort.
When the seal ring is installed, the initial sealing performance of the seal ring and the sliding performance with the ball spherical surface are greatly affected by the fixing position of the ball and the seal ring. High machining accuracy is required.

  Compared to the general ball valve as described above, the rotary valve of the above embodiment has the seal member 120 disposed on the valve body 116 side, so that a plurality of seal rings are provided like a general ball valve. The seal member 120 can be attached to one valve body 116 without attaching them to the outflow inlets in the body. For this reason, while reducing the number of parts, the inside can be simplified and reduced in size and weight, and the joint body 21, the hemispherical portion 122 of the valve unit 25, and the seal member 120 do not require high processing accuracy. If the processing accuracy of the inner peripheral hemispherical surface 113 of the valve body storage portion 115, specifically, the opening portion (the valve seat surface of the body) of the outflow inlet 110 is ensured, the valve unit 25 is inserted into the joint body 21. By simply attaching the spacer 140 and the bush member 141, it is possible to ensure stable operability and sealing performance by incorporating the spacer 140 and the bush member 141 into a predetermined state while ensuring sealing performance.

  When the valve body 116 is assembled, the valve unit 25 fitted with the seal member 120 in advance can be inserted from the opening, and the joint body 21 is provided in a one-piece structure, so that fluid is reliably sealed to prevent leakage to the outside. it can. In addition, since the valve unit 25 is incorporated via the spacer 140 and the bush member 141, the spacer 140 and the bush member 141 prevent the occurrence of loosening, and maintains high sealing performance even when the valve unit 25 is repeatedly rotated. Furthermore, since the valve unit 25 can be retightened by tightening the bush member 141 after the piping, even if a leak occurs in the seal member 120, the retightening can quickly stop the leak. By tightening the valve unit 25, it is possible to compensate for a decrease in sealing performance due to wear of the seal member 120. Abnormal pressure increase can be avoided because there are few inner seals. This built-in structure eliminates the need to install seal rings, inserts, caps, etc. from the outside to the body, so there is no need to remove the entire part from the piping when replacing consumable parts, etc. Man-hours are kept to a minimum.

  As will be described later, when a rotary valve is provided by the joint body 21, another valve mechanism such as a ball valve may be attached through the insertion hole 117. Thereby, it is also possible to open and close the flow path by combining another valve on the insertion hole side with respect to the rotary valve provided in the 2-5 way valve, for example, by combining the joint body and the valve unit. . In addition, in FIG. 12, as in the case of the connector material, a gauge 136 such as a pressure gauge or a thermometer is connected to check the internal state of the joint main body 21, the fluid sampling in the joint main body 101, It is also possible to purge the pressure or supply the air pressure for airtight inspection into the inside of the pipe to perform the pipe airtight inspection.

FIG. 17 shows a second embodiment of the rotary valve. In the following embodiments, the same parts as those in the above-described embodiments are denoted by the same reference numerals, and the description thereof is omitted.
In this rotary valve, a valve body 161 is inserted into a joint body 160, and a support stem 163 having the same shaft diameter as that of the rotary operation section 162 is provided on the opposite side of the valve body 161 to the rotary operation section 162. Yes. The support stem 163 is pivotally attached to an insertion port 164 formed at a position facing the opening 111 of the joint body 160. A mounting seat 165 is provided on the insertion port 164 side of the joint body 160, and an actuator 166 is mounted on the mounting seat 165. The support stem 163 is connected to the output shaft 168 of the actuator 166, and the valve unit 167 can be rotated by the actuator 166. Thus, the operating actuator 166 may be mounted on the rotary valve.

  In this rotary valve, the shaft diameters of the rotation operation portion 162 and the support stem 163 are provided with the same dimension as described above, so that the pressure receiving thrust generated in the joint body 160 by the fluid pressure is canceled out with the same shaft diameter. The operating torque required when operating the valve unit 167 can be suppressed to the friction torque when the seal member 120 slides on the valve body storage portion 115. Therefore, it is possible to use a small actuator 166 having a low output torque while keeping the operation torque low.

  More specifically, in this rotary valve, the flow direction of the fluid is biflow from the outflow inlet 170 formed in the joint body 160 to the outflow inlet 171, or from the outflow inlet 171 to the outflow inlet 170. When the fluid flows from the outflow inlet 170 to the outflow inlet 171, when the seal member 120 is closed, the fluid pressure is applied to the application portion 120 a side of the seal member 120, and the fluid pressure is applied to the valve body 161 and the joint body 160. It is never applied. Since the closing torque acts only by the compressive force to the joint body 160 for closing the fluid pressure applied to the seat pressure receiving area, the operating torque is the sliding frictional force between the seal member 120 and the contact surface of the valve body storage portion 115. It becomes only. Even at the intermediate opening degree, the rotation operation unit 162 and the support stem 163 have the same cross-sectional area, so that the mounting portion of the seal member 125 on the rotation operation unit 162 side by the fluid pressure acting on the valve body 161 and the support stem 163 The thrust applied to the mounting portion of the sealing material 125 cancels each other, and only the sliding frictional force between the sealing member 120 and the contact surface of the valve body storage portion 115 acts without being affected by the fluid pressure. For this reason, operation with low torque becomes possible.

  When the fluid flows from the outflow inlet 171 to the outflow inlet 170, the fluid pressure is applied to the application part 120b of the seat member 120 at the time of closing, and the fluid pressure is applied to the valve body 161 and the joint body 160. However, since the rotational operation section 162 and the support stem 163 have the same cross-sectional area, the mounting portion of the seal material 125 on the rotation operation section 162 side by the fluid pressure acting on the valve body 161 and the seal material 125 of the support stem 163 The thrust applied to the mounting portion cancels each other out. For this reason, only the compressive force for closing the fluid pressure to the joint body 160 of the seal member 120 acts as the closing torque, so the operating torque is the sliding frictional force between the seal member 120 and the contact surface of the valve body storage portion 115. It becomes only. Even at the intermediate opening degree, the rotation operation unit 162 and the support stem 163 have the same cross-sectional area, so that the mounting portion of the seal member 125 on the rotation operation unit 162 side by the fluid pressure acting on the valve body 161 and the support stem 163 The thrust applied to the mounting portion of the sealing material 125 cancels each other, and only the sliding frictional force between the sealing member 120 and the contact surface of the valve body storage portion 115 acts without being affected by the fluid pressure. For this reason, operation with low torque becomes possible.

During manual operation, the rotation operation unit 162 exposed to the outside from the bush member 141 can be rotated through the handle 146, so that the structure is simplified and the operability is improved. The opening degree of the valve can be easily confirmed by the direction of the handle 146 for manual operation.
When disassembling the valve unit 167 from the joint body 160 or replacing consumable parts such as the seal member 120 and the seal material 125, the bush member 141 is loosened and the lock screw 172 that fixes the spacer 140 to the joint body 160 is attached. After loosening and releasing the fixation of the spacer 140, the valve unit 167 can be easily removed by pulling the valve unit 167 downward from the joint body 160 in the figure.

  FIG. 18A and FIG. 18B show a third embodiment of the rotary valve. As shown in FIG. 18B, in this embodiment, a joint body 200 having a two-way valve function having two outflow inlets is used. The joint main body 200 is provided with two outflow inlets 201 and 201 and an opening 202, and a connection part 205 is provided on the outflow inlets 201 and 201 side and an upper end side of the opening 202. Provided by ferrule joint.

  The ferrule joint 205 joins the ferrule portions 207 and 207 provided on the outflow inlet 201 side and the opening side to the ferrule portions 207 and 207 provided on the pipe 230 and the lid member 211 with the clamp band shown in FIG. By this ferrule joint 205, the joint body 200 is provided as a part of the pipe line 206 of FIG. At this time, the seal member 208 is sandwiched between the ferrule portions 207 to be joined. In FIG. 20, the joint body 200 has a three-way valve structure, but the branched outflow inlet can be omitted and provided as a two-way valve. As described above, the rotary valve of FIG. 18 or a joint device (not shown) can be joined as the pipe line 206 of the piping system via the joint body 200. In this embodiment, a case where the joint member 200 constitutes a rotary valve will be described.

  The clamp band 210 shown in FIG. 19 has band portions 212 and 212, a link 213, a fastening bolt 214, and a handle 215. One end side of the band portion 212 is rotatably attached to the link 213 by a pin 216, and a tightening bolt 214 and a concave portion 217 into which the tightening bolt 214 is fitted are formed on the other end side of the band portion 213, respectively. . The tightening bolt 214 is provided so as to be loosely fitted into the concave portion 217 with the band portions 212 and 212 closed, and the female screw 215a of the handle 215 is screwed to the male screw 214a of the tightening bolt 214. .

  In FIG. 18, a valve unit 220 that is a two-way valve body, a spacer 221, and a bush member 222 are assembled in the joint body 200. The spacer 221 is formed of a lid member that covers the joint main body opening 202 and has an outer diameter that can be fitted to the inner periphery of the opening 202. On the outer periphery of the lid member 211, a flange portion 223 that is paired with the ferrule portion 207 of the joint body opening 202 is provided, and bottomed hole portions 224, 224 are provided on the opposite side of the flange portion 223 and the ferrule portion 207. Are formed respectively. A female screw portion 225 is formed at the center of the lid member 211, and a male screw 226 formed on the outer periphery of the bush member 222 can be screwed into the female screw portion 225. The bush member 222 is attached to the lid member 211 by these screwing, and moves up and down with respect to the lid member 211 by the rotation of the gripper 227 having an enlarged diameter formed on the upper end side. In the drawing, the ball plunger for positioning the rotation angle is omitted.

The valve unit 220 is inserted into the valve body storage unit 115 from the opening 202, and a lid member 211 having a bush member 222 screwed onto the valve unit 220 is inserted into the valve body storage unit 115. At this time, guide pins 228 are inserted into the bottomed holes 224 and 224 between the lid member 211 and the bush member 222, and the lid member 211 and the bush member 222 are positioned in the rotational direction by the guide pins 228.
In this state, the flange part 223 of the lid member 211 and the ferrule part 207 of the opening part 202 are detachably joined by the clamp band 210 to provide the ferrule joint 205. In this case, with the band portion 212 of the clamp band 210 attached to the flange portion 223 and the ferrule portion 207, the fastening bolt 214 is fitted into the concave portion 217 and the handle 215 is tightened, whereby the lid member 211 and the joint body 200 is integrated.

  After the rotary valve is integrated, the valve body 116 can be moved in the vertical direction and adjusted by rotating and moving the bush member 222 up and down. A handle 215 is attached to the upper end side of the rotation operation unit 121, and the valve unit 220 can be rotated by this handle 215.

  When removing the valve unit 220, the lid member 211, and the bushing member 222 from the joint body 200, the clamp band 210 is detached from the ferrule part 207 and the flange part 223 in the reverse procedure of attachment as shown in FIG. The lid member 211 and the bushing member 222 can be removed together with the valve unit 220 by removing and pulling up the handle 215 with respect to the joint body 200 as shown in FIG.

  On the other hand, as shown in FIG. 20, when the pipe 230 is joined to the outlet 201 of the rotary valve by the ferrule joint 205, the lid member 211 is used by the clamp band 210 in a state in which the outlet 201 and the ferrule part 207 of the pipe 230 face each other. As in the case of, clamp joining. Thus, the pipe 230 is tightened in the joining direction by using the clamp band 210, and it is prevented that the pipe 230 is firmly joined to the joint body 200 and loosened or dropped off. In this embodiment, the example in which the pipe 230 is joined to the joint body 200 has been described. However, another joint body 200 and other piping equipment can be joined to the joint body 200.

  By the way, in the case of a general top entry type ball valve, the sealing member (ball seat) provided in the body is brought into contact with the outer peripheral sphere surface of the circular flow path opening provided in the spherical ball as the valve body for sealing. There is a need. In this case, when disassembling and cleaning the valve, when removing the valve body from the body, it is necessary to first separate the ball seat from the ball valve sphere, and if the ball seat is not separated, the ball from the body It is a structure that can not be raised.

  When this type of ball valve is used for sanitary processing, it is necessary to have a full bore flow area in order to avoid liquid accumulation in the sanitary process. At this time, it is difficult to secure a full-bore structure with a one-piece structure body, and usually a two- or three-piece structure body is required. As described above, the normal ball valve has a multi-piece structure and an internal structure in which the ball seat and the ball interfere with each other. Therefore, an extra distance is required to separate the ball seat from the ball. It is difficult to disassemble the internal parts in the piping state. For this reason, it is necessary to remove this ball valve from the piping in order to disassemble and assemble the internal parts while having a top entry structure. Furthermore, when a ferrule joint is provided on the body body, a connecting retainer that holds the body body and the seat provided in the ferrule joint shape is required as a separate body, so the number of parts increases and the number of parts to be sealed increases. As a result, the risk of external leakage increases, leading to an increase in cleaning costs and an increase in product costs. For these reasons, this ball valve is not suitable for sanitary process applications that require regular cleaning and maintenance.

  Compared with the ball valve having such a general structure, the rotary valve in FIG. 18 has the clamp band 210 while maintaining the piping state to the piping system without removing the joint body 200 from the pipe 230 as described above. The parts inside the valve can be disassembled and assembled in units. At this time, since the top entry structure is used, the valve unit 220, the lid member 211, and the bushing member 222 are vertically moved with respect to the joint body 200 as shown in FIG. Since it can be easily disassembled by pulling up, no extra work space is required for attachment / detachment. For this reason, cleaning and maintenance such as cleaning of each disassembled part, flushing in the pipe, and sterilization with steam are facilitated, and in addition to the inside of the rotary valve, it also cleans by removing the dirt on the liquid contact part inside the pipe. It becomes possible to keep on.

  Furthermore, since the rotary valve has a one-piece structure, the entire system is made compact, the face-to-face and height dimensions are reduced, and the number of parts can be reduced. In addition, the risk of external leakage is reduced, and cleaning costs and product costs can be reduced.

  Since the joint body 200 can be joined to the pipe 230 or the like via the ferrule joint 205, a space for screw tightening such as screw joint or a space for tightening bolts and nuts such as general flange joint is flown. There is no need in the road direction. That is, if there is a minimum required inter-surface dimension for joining the joint body 200, space can be saved by housing the joint body 200 in this inter-face dimension and attaching the clamp band 210 from the outer periphery side of the pipe 230. .

  22 (a) and 22 (b) show a fourth embodiment of the rotary valve, and the rotary valve is provided in a horizontal three-way valve structure using a joint body 240 having an outflow inlet 201 in three directions. It is a thing. On the other hand, FIGS. 23 (a) and 23 (b) show a fifth embodiment of the rotary valve, and the rotary valve has a three-way vertical structure using a joint body 241 having a four-way outlet 201. It is provided. As described above, when the rotary valve has a multi-way valve structure other than the two-way valve, it is easy to disassemble and assemble at the time of cleaning etc. A fluid sampling function can also be added. In addition to these horizontal three-way valve and vertical three-way valve, even in the case of a multi-way rotary valve structure, it can be joined to the pipe line via the clamped ferrule joint 205 as in the case of the two-way valve in FIG. Therefore, cleaning and maintenance are easy, and a simplified flow path can save space.

20 Pipe 101 Joint body 102 Valve unit 110 Outflow inlet 111 Opening portion 112 Bottom portion 113 Inner peripheral hemispherical surface 115 Valve body storage portion 116 Valve body 120 Seal member 121 Stem (rotation operation portion)
122 Hemispherical portion 125 Seal material 127 Through hole 128 Mounting groove 131 Bush 140 Spacer 147 Bottom surface portion 150 Ball plunger 151 Locking portion 163 Support stem 164 Insertion port 166 Actuator 205 Ferrule joint 210 Clamp band 223 Gutter

Claims (2)

A valve body housing portion having an inner circumferential hemisphere and a cylindrical opening opened from the valve body housing portion are formed in a joint body having at least two outflow inlets, and the valve body is housed in the valve body from the opening. A spacer is inserted into the opening from above the valve body through a sealing material, and a bush is mounted on the opening from above the spacer, and the valve body is positioned vertically by the bush. The valve body is provided so as to be rotatable by a rotation operation part through a sealing material, and the valve body has a through hole communicating with the outflow inlet and a mounting groove facing the outflow inlet in a direction intersecting the through hole. The mounting groove is provided with a sealing member for closing the outflow inlet, and a support stem having the same shaft diameter as the rotation operation portion is provided on the opposite side of the valve body to the rotation operation portion. Opposing the joint body opening Pivotally attached to the insertion port formed on location, actuator with a rotary valve, characterized in that the supporting stem is connected to the output shaft of an actuator mounted on the joint body. Wherein the rotation operating part is formed integrally with the valve body, the rotary valve according to claim 1 which constitutes a valve unit with the valve body and said sealing member.

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