JP2003524807A - Thermostatic mixing valve with manual sequential control - Google Patents

Abstract

(57) [Summary] The thermostatic mixing valve (10) has two inlet ports (20, 22) for cold water and hot water, a mixing chamber (59), and a passage (30) between the inlet port and the supply chamber. 31), an outlet passage (33) and outlet port (34) for mixed water from the mixing chamber, a thermostat member (64) at least partially disposed in the mixing chamber, and a distribution controlled by the thermostat member. A sliding valve (44) is provided. Two inlet ports and outlet passages are made in a central body (28) located within the distribution slide valve. The distribution slide valve is arranged to alter the passage between only one of the inlet passages and the mixing chamber. A manual sequential control valve (80) is inserted to control the two inlet passages. The manual sequential control valve comprises a fixed plate (82) and a rotatable plate (84) rotatably mounted on the fixed plate.

Description

Detailed Description of the Invention

[0001]

【Technical field】

The present invention relates to a cold water and hot water mixing valve with a thermostat device and a manual control device acting on an inlet port through which cold water and hot water pass into a mixing zone.

[0002]

BACKGROUND OF THE INVENTION

According to Italia Patent 1107182 by the same inventor, a thermostatic faucet has a manual control device that sets the mixing ratio between cold water and hot water, and the temperature of the actually discharged mixed water within a certain range. A thermostat that controls a check valve inserted in the hot water supply to the manually controlled mixing faucet, depending on the actual temperature of the water being mixed, to change the setting of the mixing ratio to maintain A mixing faucet having a device is provided.

According to Italia Patent 1279194 by the same inventor, a thermostatic faucet has a manual control device that sets the mixing ratio between cold and hot water, and the temperature of the actually discharged mixed water. Depending on the actual temperature of the water being mixed, a check valve inserted in the chilled water supply to the manually controlled mixing faucet to change the mixing ratio setting to keep it in range It has a mixing faucet with a controlling thermostat device.

Both faucets incorporate some material separator between the manually controlled mixing valve and the thermostat device, which complicates its design and installation.

According to Italian Patent 12273178, a thermostatic mixing faucet, which can also function as a faucet, comprises cold water inlets and hot water inlets arranged on opposite sides of a central outlet pipe. The mixing chamber receives thermostatically regulated hot and cold water inlet passages and thermostatically controlled distribution valves, respectively, to maintain the temperature of the discharged mixed water within an adjustable range. It operates so as to control the opening and closing in the opposite directions of the adjusted hot and cold water passages. The device may be provided with a flow control valve for manually and simultaneously changing the effective openness of both hot and cold water inlet pipes. This flow control valve controls only the flow rate and has no effect on the mixing action of hot and cold water or the relative flow rate ratio. Although this device is of general and particularly advantageous construction, the temperature regulation is rather insensitive and causes a temporary overregulation phenomenon (called overshoot). Temporary overshoot occurs during movement of the temperature adjustment mechanism to a position corresponding to a given temperature, first of all a change in the effective temperature of the effluent that is significantly greater than the desired temperature change. The desired temperature change is after a certain time
It is only reached after some change in the thermostat device to compensate. Controlled temperature control by the thermostat member is achieved by manual adjustment of the position of the thermostat member and the position of the distribution valve which is operatively connected thereto and which directly affects the opening of the hot and cold water inlets.

[0006]

[Outline of the Invention]

According to one aspect of the invention, a thermostatic mixing valve is provided as a thermostatic faucet, or with each having its own faucet or one or more faucets installed downstream of the thermostat device. It can instead be used as a thermostat device for feeding one or several of the specified devices. Thermostatic mixing valves combine the advantages of prior art devices without installation limitations or thermostat overshoot failures. In particular, the present invention is a compact structure that is easy to manufacture and install and ensures a high degree of adjustment sensitivity. Furthermore, it is possible to guarantee that there will be no supply of extremely hot water even in the event of an abnormality in the water supply pipe, and when it is used as a thermostat type faucet, this is a manually operated sequential valve installed in series with a thermostat valve. Incorporate control valve.

[0007] Preferably, the thermostatic mixing valve has two supply ports for cold water and hot water, a mixing chamber, a passage between the supply port and the supply chamber, an outlet port for mixing water from the mixing chamber, and a mixing chamber. A thermostat member disposed at least partially within the chamber and an annular distribution slide valve controlled by the thermostat member. Both the inlet port and the exhaust port are on the radially inner central body of the annular distribution slide valve. The distribution annular slide valve is arranged to throttle the passage between only one of the inlet ports and the mixing chamber. A flow and mixing control valve with sequential type manual control is installed to control the two inlet ports.

The temperature of the discharged water is controlled by the flow rate and the mixing action without directly changing the positions of the thermostat member and the distribution slide valve manually so that the temporary overshoot phenomenon can be systematically eliminated. It is set manually by the action of the manual type sequential control valve. Furthermore, the adjusting action of the distribution slide valve controlled by the thermostat always acts in the direction opposite to the direction of the manual action, thereby limiting its effect.
Due to the two effects acting in opposite directions, a longer manual controlled movement must be made to achieve the desired change. The adjustment phase is lengthened and the profile of change is flatter. The speed and accuracy of the thermostatic adjustment means that the cross-sectional flow area of only one inlet port is such that mixing occurs by adding or throttling only one flow rate with respect to the other flow rate, rather than the opposite fluctuations of the two flow rates. Is enhanced by the action of the distribution slide valve to effectively throttle or increase.

When the valve is used as a faucet, a manual sequential control valve shuts off or closes the discharge flow, functions as a check valve, and regulates the flow within certain limits. However, a manual sequential valve inserted in the water supply line can also be used as a thermostat type regulator. To supply the flow to one or several devices each provided with its own shut-off and flow control valve or with one or more taps inserted in the water pipe downstream of the thermostat valve It can also be used as a thermostat type adjusting device. In this case, the manual control valve of the thermostat valve is adjusted only to determine the desired temperature and does not block or regulate the water flow.

If the upper limit of the temperature of the discharge water must not be exceeded, the distribution slide valve will adjust the cross-sectional area of the passage through which hot water passes from the associated inlet port to the mixing chamber by the action of a thermostat member. Be positioned at.

On the contrary, when it is not necessary to limit the temperature of the discharged water (for example, because the supply of hot water is at a limited temperature or a non-hazardous temperature), the action of the thermostat member causes the cold water to cool. Sliding valves for distribution can also be arranged to adjust the cross-sectional area of the passage through the associated inlet port to the mixing chamber.

Preferably, if the valve is intended to use a thermostatic faucet, the manual sequential control valve comprises a pair of discs with through openings, preferably made of a rigid material. The first fixed plate and the second movable plate are in sliding contact with each other. The opening of the plate is in the closed or shut-off position, the range of positions where the related passages for cold water are sequentially opened while the hot water passage is closed, and the hot water passage is opened sequentially while keeping the cold water passage fully open. It is positioned so as to continuously secure the range of positions and, finally, the range in which the cold water passage is sequentially closed while keeping the hot water passage fully open. The two plates always provide an outlet opening which is open to the mixed stream.

Alternatively, two ranges of positions can be replaced by one range of positions at which the hot water passages are successively opened and the cold water passages are successively closed at the same time.

The sequential action is achieved, for example, by a plate valve structure having a first plate which is symmetrical with respect to the diameter of the passage opening and a second plate which is constructed asymmetrically with respect to the diameter of the opening and cooperates with the first plate. be able to. It is immaterial whether the first plate is fixed and the second plate is movable or vice versa. In a particularly advantageous arrangement, the sequential valve comprises a fixed base plate adapted to be mounted on the feed and discharge housing, and a movable plate rotatably mounted on said base plate and operated manually. The fixed plate is preferably mounted on the supply and drain housings and the movable plate is preferably operable by a handle, lever or knob mounted on the rotatable body of the valve.

The valve is provided with a regulating device which determines and regulates the maximum adjustable temperature of the water discharged. The adjusting device adjusts the rest position of the thermostat member and the distribution slide valve connected thereto. The device comprises a cap that can be manually turned and attached to the rotatable body of the valve by an actuating screw connection. When the cap is rotated with respect to the rotatable body, the cap can axially move a support point for the thermostat member.

According to a broader aspect of the invention, a base having two feed ports, and mounted on the base and having first and second inlet through passages and operably connected to the first valve face. A rotatable body having passages operatively positioned adjacent the two supply ports for controlling the flow into the housing. The second valve member is annular in shape and can be moved in and out of an adjacent annular seat to throttle and control only the flow rate from the first inlet passage. The first inlet passage has a downstream end that passes through the surface of the annular seat within the radial extent of the annular valve surface and is in communication with the annular seat and the annular valve member;
A first annular flow path is provided between the annular seat and the annular valve member to a mixing chamber from a radially inner side of the annular valve member to a radially outer side of the annular valve face. The first inlet passage is sealed inside the annular valve face with respect to the second inlet passage from the feed port to the mixing chamber. The thermostat member is axially movably arranged in the mixing chamber and has an annular valve face for restricting and controlling only the flow rate from the first inlet passage into the mixing chamber depending on the temperature of the fluid in the mixing chamber. , Operatively coupled to the annular valve face to move toward and away from the annular seat in the axial direction. The mixing chamber communicates with the outlet that is coming out.

Preferably, the annular seat faces the axial end of the annular valve member. Second
Has an downstream passage which extends within the radial extent of the annular valve face, through the face of the first seat and the interior of the annular valve face, and which is in open communication with the mixing chamber.

Alternatively, the second inlet passage terminates below the annular valve member to allow unrestricted free flow around the annular valve into the mixing chamber, the annular seat of the annular valve member. Positioned upwards and the first inlet passage passes through the interior of the annular valve member.

Preferably, when the thermostat member contracts, a return spring is mounted within the radial extent of the annular valve member to axially move the annular valve member.

In one embodiment, a return force spring is mounted on top of the central body within the rotatable body.

[0021]

Detailed Description of the Preferred Embodiments

  Now refer to the attached drawings.

Referring to FIG. 1, the thermostatic mixing valve 10 comprises a rotatable handle body 12 rotatably mounted to a pipe fitting or other suitable pipe fitting 14. The pipe fitting 14 has a cold water supply system 16 and a hot water supply system 18. The rotatable handle body 12 is rotatably mounted on a faucet base 17, which is fixed in the fixture 14 by means of a projection 19 inserted into a seat 21 of the fixture 14. The body 12 is held on the base 17 by a collar 23 screwed into the seat 21 of the fixture 14. A seal 13 sits on the base 17 surrounding the cold water inlet port 20 and the hot water inlet port 22.

The rotatable body 12 comprises an inner shell 25, which has a decoration, preferably a thermal insulation, shaped to facilitate manual operation for rotation of the rotatable body 12. An operating handle or knob 26 made of material is equipped. Shell 2
Arranged inside the 5 is a central body member 28, which is fixed to the shell 25 and rotates with it. The central body 28 is adapted to cooperate with an annular slide valve 44 for distribution.

The inner body member 28 has a cold water inlet passage 30 aligned with the cold water inlet port 20 and a hot water inlet passage 31 aligned with the hot water inlet port 22. Central mixed water outlet 3
3 communicates with the exhaust port 34 and outlet 36 of the fixture 14. The passage 30 has an annular downstream end 40 adjacent the annular valve seat 40. This downstream end also adjoins the valve lip 42 axially above the annular slide valve 44. The downstream end 46 of the hot water inlet 31 is annular in shape and is not squeezed due to the large space between the lower end 48 of the valve 44 and the opposing annular surface 50. There is also a sufficient annular clearance between the rotatable body 25 and valve 44 and its mounting collar 57 to provide an unthrottled passage into the passage opening 57 and mixing chamber 59.

A valve seat 40 is fixed to the inner body member 28. A passage 30 passes axially through the annular valve 44 within its radial boundaries. The inner body member 28 has an intermediate seal seat 52 on which a gasket 54 sits, which gasket blocks the passage 30 from the passage 31 within the axial length of the annular slide valve 44.

The annular slide valve 44 is fixed to the collar 56 by a screw connection 58. The collar 56 and the sliding valve 44 form a mixing chamber 59 between the flow port 57 and the mixed water outlet 33. A spring 60 is mounted in the annular valve 44 and the collar 56 to allow the central body 28
Sit in the seat 40 at the top of the. Spring 60 forces valve 44 to mate with seat 40, closing passage 38. The collar 56 extends above the inner body portion 28, and the body portion 62 of the thermostat member 64 is provided by the safety spring release collar 72 and the spring 74.
Functionally fixed to. The thermostat member 64 has an elongated piston leg 66 that mates with a receiving member 68 attached to the adjusting handle 70. The adjustment handle 70 has a threaded connection 76 to the shell 25 and a suitable seal 75 for mechanically raising and lowering the thermostat assembly 64 within the shell 25. Body portion 62
Can extend into the central outlet of the inner body 28 and into the passageway 33.

The mixing valve comprises a flow rate sequential control valve 80 having two ceramic discs 82 and 84. A fixed ceramic disc 82 is attached to the base 17. Central body 2
At the bottom of 8, a rotatable (or movable) ceramic disc 84 is attached. The flow rate sequential control valve 80 is attached upstream of the annular slide valve 44. The stationary ceramic disc 82 has a cold water supply port 86 and a hot water supply port 88, and a centrally located mixed water outlet port 90. Movable ceramic disc 84 has a cold water inlet 92, a hot water inlet 94 and a centrally located outlet opening 96. The opening 96 is defined by the outlet port 90 of the fixed ceramic disc 82, the central outlet passage 33 of the body 28 and the exhaust port 3.
Always aligned with 4. Rotation of the shell 25 with the handle 26 and the central body 28 causes the ceramic disc 84 to rotate with respect to the disc 82, and the inlets 86, 88 and the inlet 9
2, 94 are selectively matched or unmatched.

As clearly shown in FIG. 2, the openings 86 and 88 of the fixed plate 82 are symmetrically positioned with respect to the central diameter 96 of the fixed plate. The openings 86 and 88 have an arcuate shape. Other shapes can also be used. As shown in FIG. 3, the inlet openings 92 and 94 of the movable plate 84 are asymmetric with respect to the central diameter 98 of the movable plate 84. The diameter 98 of the movable plate 84 corresponds to the diameter 96 of the fixed plate when the plates 82 and 84 are in the blocking or closed position as shown in FIG. Openings 86, 88
, 92 and 94 other arrangements are also possible and these are also suitable for providing correct actuation (specified below). Further, the plates 82 and 84 can be switched such that the plate 82 is movable with its opening and the plate 84 is fixed with its opening.

The plates 82 and 84 together work together as shown in FIGS. 4-7 as a function of the rotation imparted to the rotatable body 12 of the thermostatic valve with respect to the fixed base 17 to provide flow and mixing. It provides a serial adjustment of action.

4-7, the two plates 82 and 84 are shown with the movable plate 84 overlying the fixed plate 82. Although the openings 92 and 94 of the movable plate 84 are visible, the fixed plate 82
The openings 86 and 88 (indicated by the grid lines) are completely or partially covered by the movable plate 84.

In the position shown in FIG. 4, the openings 92 and 94 of the movable plate 84 are not fixed.
The two openings 86 and 88 completely disagree. Therefore, this is the closed or closed position. On the other hand, the discharge outlets 90 and 96 are always aligned in this position, as in all other positions of the plates 82 and 84, where the valve central body 28 is.
The outlet passage 33 of will always be in communication with the outlet 36 of the faucet 14.

In the position shown in FIG. 5, the movable plate 84 is rotated by an angle counterclockwise (along arrow 100) with respect to the position shown in FIG. In all of the positions between the position shown in FIG. 4 and the position shown in FIG. 5, the passage opening 92 of the movable plate 84 partially or wholly coincides with the opening 86 of the fixed plate 83. On the other hand, the opening 94 of the movable plate 84 does not match the opening 88 of the fixed plate 82 at all. Therefore, during the rotation from the position in FIG. 4 to the position in FIG. 5, the flow rate of cold water increases successively, while the hot water remains blocked or closed.

In the position shown in FIG. 6, the movable plate 24 is further rotated by an angle in the clockwise direction (along arrow 100) with respect to the position shown in FIG. In the entire range of positions between the position shown in FIG. 5 and the position shown in FIG. 6, the passage opening 94 of the movable plate 84 partially or wholly coincides with the opening 88 of the fixed plate 82. On the other hand, the opening 92 of the movable plate 84 remains substantially completely aligned with the opening 86 of the fixed plate 82. Therefore, in the rotation from the position in FIG. 5 to the position in FIG. 6, the flow rate of the hot water is gradually increased, while the cold water remains in the completely opened state. Therefore, there is an incremental addition of hot water to cold water. The axial profile in FIG. 1 is shown in FIG.
2 shows passages for both cold and hot water at opening corresponding to the cross section marked along the line I-I shown in FIG.

Finally, in the position shown in FIG. 7, the movable plate is again rotated by an angle in the counterclockwise direction (along arrow 100) with respect to the position shown in FIG. In all of the positions between the position shown in FIG. 6 and the position shown in FIG. 7, the passage opening 94 of the movable plate 84 remains substantially in line with the opening of the fixed plate 82. On the other hand, the opening 92 of the movable plate 84 continues to gradually return to a state in which it does not substantially match the opening of the fixed plate 82. Therefore, in the rotation from the position in FIG. 6 to the position in FIG. 7, the flow rate of cold water gradually decreases, while the passage opened to hot water remains completely open. Therefore, the passage gradually shifts from the mixing action to the supply of hot water only.

Alternatively, the two ranges of the intermediate position between the position of FIG. 5 and the position of FIG. 7 are set so that a gradually expanding passage is provided to the hot water and at the same time a passage to the cold water is gradually reduced. Can be replaced with one range.

Thus, the two plates 82 and 84 having openings 90 and 96, respectively, provide a sequential control valve 80 for flow and mixing action which uses the handle 26 to actuate the shell 25. It can be controlled manually by rotating the valve body 12. With the help of the manual serial control valve 80, the amount of cold water can be set to a mixing ratio intended to be subsequently modified by the action of the thermostat device 64.

This description relates to the case of a thermostatic mixing valve that can be used as a faucet with a shut-off position. On the contrary, if the valve is intended to act as a feeder for one or several installations, and if the function of blocking and regulating the flow rate is downstream of this valve 10, the position of blocking or closing. And increasing passages for cold water, while
It is possible to eliminate the range of positions corresponding to shutting off hot water.

The thermostat device operates in the following manner. Mixing chamber 59 is channel port 2
Hot water is received via 7 while cold water flows from the ring-shaped chamber 38 at respective ratios manually set by the sequential control valve 80 described above. The hot and cold water are mixed in the mixing chamber 59 and are discharged through the outlet passage 33 and through the discharge port 34 and the outlet 36 of the fixture 14. This mixed water is a thermostat member 64.
The member is brought to the same temperature and correspondingly expands or contracts. Expansion or contraction of the thermostat member 64 causes the distribution slide valve 44 to descend or rise. When the water warms the thermostat member 64, it expands causing the slide valve 44 to descend, separating the annular seat 42 from the surface of the seat 40 and the flow path between the annular chamber 38 and the mixing chamber 59. Spread. This reduces resistance to the flow of cold water, increases its flow rate and lowers the temperature of the mixed water. If the manual sequential control valve 80 were adjusted to raise the temperature again at this point, the expansion of the thermostat member 64 would also increase and the flow path between the annular chamber 38 and the mixing chamber 29 would be wider. The resistance is further reduced and the flow rate of cold water is further increased. It will be appreciated that because the thermostat device 64 attempts to counteract the manual adjustment, the manual adjustment must be made with an amplitude greater than that which reaches the desired temperature of the mixed water. The fine tuning capability for small temperature changes is thus enhanced.

Furthermore, any voluntary adjustment of the manual sequential valve for temperature adjustment does not directly cause axial movement of the distribution slide valve, but the required axial movement is achieved by the thermostat device to reach equilibrium. Will be compensated. Therefore, there is no temporary overshoot phenomenon.

The operation of the handle 70 of the thermostat valve raises and lowers all the thermostat members 64 and the collar 56 together with the sliding valve 44. However, contrary to conventional practice, movement of the handle 70 does not help regulate the temperature, but rather (under normal feed conditions) regulates the maximum temperature limit that can be reached for the discharged mixed water.

On the other hand, if the temperature of the discharged water is abnormal or the supply from the cold water supply pipe 16 is completely lost in an extreme case, finally, the temperature of the hot water supplied from only the supply pipe 18 will be increased. It is clear that it is possible to go above said limit until the temperature is reached. Nevertheless, the described embodiment shows that if the temperature of the hot water supplied by the pipe 18 is not dangerous, and the hot water passage entering the valve is completely free (except for spontaneous control), the hot water is therefore at a low pressure. Is particularly advantageous when supplied in.

If it is desired to introduce a device to prevent the discharge of hot hot water, the embodiment according to FIG. 8 can be used. This embodiment corresponds in large part to the previous embodiments and corresponding parts and is numbered the same and will therefore not be described again. The axial cross section of this figure is also the same as that shown in FIG.

The basic difference between the embodiment shown in FIG. 8 and the embodiment according to FIG. 1 is that the thermostat adjustment does not occur in the wide cold water passage 30 but in the hot water passage 31. The cold water inlet passage 30 has its annular chamber 38 freely pouring into the mixing chamber 50. On the other hand, the hot water inlet passage 31 is poured into the annular chamber 46, and the annular operating portion 48 of the distribution slide valve 44 surrounds this annular chamber 46 and cooperates with the bottom surface 50 provided by the central body 28, The flow rate into the mixing chamber 59 is controlled and throttled.

The valve operates in a manner similar to that previously described, but the thermostatic adjustment following expansion of the thermostat member 23 involves throttling or restraint of the hot water passage rather than expansion of the cold water passage. In case of any abnormality of the cold water supply system, the amount of mixed water is reduced sufficiently to stay within the temperature limits set by the valve, and if there is no cold water supply, the valve should stop draining water altogether. Ah

In all of these embodiments, the thermostat valve according to the invention can be used as a thermostatic faucet which acts in a gradual manner and rotates the shell 25 of the valve by the rotation of the handle 26.

However, each is provided with its own flow control and shutoff faucet, or with one or more faucets inserted into the pipe downstream of the thermostat valve, for example a shower head. This valve can also be used to feed one or several devices. In this case, the thermostat valve is manually adjusted only to set the desired temperature, while the flow and shutoff valves are adjusted downstream in the various device faucets.

Since all thermostat valves that do not ensure the separation between the hot and cold water supply pipes do not act as faucets, a selective check valve is inserted in the line to ensure this separation. be able to.

It should be understood that the present invention is not limited to the illustrated and illustrated embodiments. Certain modifications and others described are within the reach of those skilled in the art, for example, the shape and placement of the passage openings in plates 82 and 84 can be modified, which are of the operation previously described. The arrangement of the other parts of the valve that can be chained can also be changed. A cap 70 for making this adjustment when the adjustment of the achievable temperature limit is predetermined by design, or when this adjustment is made by a technician but cannot be done by a setting member that is not accessible to the average user. Can be omitted.

What has been described and illustrated above without departing from the scope of this invention and the scope of this patent can be replaced by these and other changes and technical equivalents.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a first embodiment of a thermostatic valve according to the present invention.

FIG. 2 shows an embodiment of a fixed plate for the manual type sequential valve for flow control and mixing action shown in FIG.

[Figure 3]   1 shows an example of a movable plate for a manual-type sequential valve.

4 to 7   Figure 3 shows the movable plate rotated in various adjustment positions of the fixed plate of figure 2;

FIG. 8 shows a side sectional view similar to FIG. 1, showing a second embodiment of a thermostatic valve according to the present invention.

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Claims (20)

[Claims] 1. A base having two supply ports for cold water and hot water, a mixing chamber, a passage between the supply port and the supply chamber, an outlet port for mixed water communicating from the mixing chamber, A thermostat member disposed at least partially in the mixing chamber, an annular distribution slide valve controlled by the thermostat member, said two made in a central body positioned inside said annular distribution slide valve In a thermostatic mixing valve having individual supply ports and the outlet, the distribution slide valve is configured to throttle and control a passage between only one of the supply ports and the mixing chamber, and A thermostatic mixing valve, wherein a manual control valve is sandwiched between the supply port and the mixing valve to control the flow rate through the two supply ports. 2. The distribution slide valve is further configured to limit the action of the thermostat member to only the passage through which hot water passes from the associated supply port to the mixing chamber. Thermostatic mixing valve specified in. 3. The distribution slide valve is further configured to limit the action of the thermostat member to only passages through which cold water passes from the associated supply port to the mixing chamber. Thermostatic mixing valve specified in. 4. The manually controlled valve has a pair of valve plates with through openings, the first plate is fixed and the second plate is movable and in contact with the first fixed plate. The thermostatic mixing valve according to claim 1, further characterized by the above. 5. The plate has a shutoff position, a range of positions where the passage for cold water gradually opens while maintaining the closing of the hot water passage, and a position where the passage of hot water gradually opens while maintaining the full opening of cold water. , And finally, each opening arranged in such a position as to ensure a continuous opening of the cold water passage while maintaining the full opening of the hot water passage, and at the same time, the two plates are 5. Thermostatic mixing valve according to claim 4, further characterized in that each has a discharge opening which is always coincident with one another. 6. The plate causes a blocking position, a range of positions where a passage for cold water is gradually opened while maintaining the closure of the hot water passage, and a gradual opening of the hot water passage and a gradual closing of the cold water passage at the same time. 5. Thermostat according to claim 4, further comprising respective openings arranged in positions so as to ensure a continuous range of positions, said two plates each having discharge openings which are always coincident with one another. Type mixing valve. 7. The plate maintains a range of positions where the hot water passage is gradually opened while maintaining the full opening of the cold water passage, and a range where the cold water passage is gradually closed while maintaining the full opening of the hot water passage. 5. The thermostatic mixing valve according to claim 4, further comprising respective openings arranged in such a position as to ensure that the two plates have discharge openings which are always aligned with each other. 8. The plate has respective openings arranged at positions so as to ensure a range of positions where a gradual opening of the hot water passage and a gradual closing of the cold water passage are simultaneously generated, and the two plates are provided. 5. The thermostatic mixing valve according to claim 4, further characterized in that each plate has discharge openings which are always aligned with one another. 9. The openings in the first plate are symmetrically arranged about a diameter, while the openings in the second plate cooperate with the first plate to provide the first opening when the plate is in the closed position.
6. The thermostatic mixing valve according to claim 5, further characterized by having an asymmetrical arrangement with respect to a diameter aligned with said diameter of said plate. 10. A valve comprising a base part fixed on a pipe fitting and a rotatable body mounted on the base so as to be rotatable on the base part and for regulating the gradual flow rate and mixing. The thermostatic mixing valve according to claim 1, further comprising the rotatable body for mounting an actuating member for a manual sequential control valve to provide the. 11. A further feature of the rotatable body of the valve further comprising a shell provided with a peripheral handle shaped to facilitate manual rotation of the rotatable component. A thermostatic mixing valve according to item 10. 12. The thermostatic mixing valve according to claim 10, further comprising a fixed plate attached to the base and a movable plate attached to the rotary body of the valve. 13. The means for determining the maximum temperature of the water discharged is adjustable. The thermostatic mixing valve according to claim 1, further characterized by the above. 14. The method according to claim 13, wherein the means for determining the maximum temperature of the discharged water comprises a thermostat member and an adjusting mechanism for adjusting a rest position of an annular slide valve connected to the thermostat member. Thermostatic type mixing valve. 15. The adjusting mechanism for adjusting the rest position of the thermostat member and the annular slide valve for distribution is axially fixed to the thermostat member and attached to the valve by means of a connecting screw coupling means and turned manually. 15. A thermostatic mixing valve according to claim 14, further comprising a cap to obtain and whose axial movement caused by rotation is transmitted to the thermostat member. 16. A base having two supply ports, a rotatable body mounted on the base and operatively coupled to a first valve face having first and second inlet through passages. A rotatable body in which the passages are functionally positioned adjacent the two supply ports to control the flow rate into the housing; A second valve member movable toward and away from an adjacent annular seat to throttle and control only the flow rate from the inlet passage; passing through the surface of the annular seat within the radial extent of the annular valve face And having a downstream end communicating with the annular seat and the annular valve member, and between the annular seat and the annular valve member from a radially inner side of the annular valve member A first ring leading to the mixing chamber radially outward of the annular valve face A first inlet passage providing a flow path in the form of a channel, the first inlet passage being sealed inside the annular valve face with respect to the second inlet passage from the supply port to the mixing chamber, A thermostat member axially movably arranged in the chamber, the annular valve for restricting and controlling only a first inlet passage into the mixing chamber according to a temperature of a fluid in the mixing chamber. A surface comprising the thermostat member operatively connected to the annular valve surface so as to move axially closer to, further away from the annular seat, the mixing chamber and an outlet exiting the mixing chamber. Thermostatic type mixing valve in communication. 17. The annular seat faces the axial end of the annular valve member, and the second inlet passage is within the radial extent of the annular valve face of the first seat. 18. A thermostatic mixing valve as defined in claim 16 further comprising a downstream end that passes through a face and the interior of said annular valve face and is in open communication with said mixing chamber. 18. The second inlet passage terminates below the annular valve member to allow unrestricted free flow around the annular valve member into the mixing chamber, the annular seat 17. The thermostatic mixing valve as defined in claim 16 further characterized in that is positioned above the annular valve member and the first inlet passage passes through the interior of the annular valve member. 19. A return forcing spring further mounted within the radial extent of the annular valve member for axially moving the annular valve member when the thermostat member contracts. A thermostatic mixing valve defined in Item 16. 20. The thermostatic mixing valve as defined in claim 16 further characterized in that said return force spring is mounted in the rotatable body at the top of the central body.