CN212360164U - Plunger pump head and plunger pump convenient to dismantle - Google Patents
Plunger pump head and plunger pump convenient to dismantle Download PDFInfo
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- CN212360164U CN212360164U CN202020738740.6U CN202020738740U CN212360164U CN 212360164 U CN212360164 U CN 212360164U CN 202020738740 U CN202020738740 U CN 202020738740U CN 212360164 U CN212360164 U CN 212360164U
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- 239000007788 liquid Substances 0.000 claims abstract description 149
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 238000003466 welding Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000007599 discharging Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model provides a plunger pump head and a plunger pump convenient to disassemble, the plunger pump head convenient to disassemble comprises a pump head body, a liquid inlet pipeline and a liquid outlet pipeline, wherein the liquid inlet pipeline is connected with the side surface of the bottom of the pump head body, and the liquid outlet pipeline is connected with the side surface of the top of the pump head body; the bottom and the top of the pump head body are respectively and independently provided with a sealing element which is detachably connected; the liquid inlet pipeline and the liquid outlet pipeline are communicated with the plunger groove at the same time. The utility model discloses a change pump head body feed liquor pipeline and liquid outlet pipe's position, realized the setting to the sealing member at pump head body bottom and top, when the impurity of the existence in the transport liquid blockked up this internal feed liquor check valve of pump head and/or go out the liquid check valve, only need dismantle the dismantlement that can realize feed liquor check valve and/or go out the liquid check valve to the sealing member to the maintenance efficiency of pump head has been improved.
Description
Technical Field
The utility model belongs to the technical field of the feed liquid is carried, a pump head is related to, especially, relate to a plunger pump head and plunger pump convenient to dismantle.
Background
The plunger pump is an important device of a hydraulic system. The plunger reciprocates in the cylinder body to change the solvent in the sealed working cavity to absorb and press oil. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, convenient flow regulation and the like, and is widely applied to occasions with high pressure, large flow and flow needing regulation, such as hydraulic machines, engineering machinery and ships.
The complete machine of the plunger type metering pump is generally composed of a motor, a transmission end and a hydraulic end. The output flow depends on the stroke speed of the transmission end, the plunger direction and the stroke length, and the stroke length can be changed by adjusting the handle in the running or stopping state of the pump, so that the purpose of changing the flow is achieved. The hydraulic end of the plunger type metering pump and the crosshead bow-shaped frame simultaneously carry out linear reciprocating motion. When the plunger moves leftwards (namely the suction stroke), the pressure in the pump head body is reduced, and when the pressure in the pump head is lower than the pressure of the liquid suction pipeline, the one-way valve ball of the suction inlet is pushed upwards, and the medium in the inlet pipeline enters the chamber of the pump head; when the suction stroke is finished, the plunger stops moving, the pressure in the pump head is the same as the pressure in the inlet pipeline, and the one-way valve ball of the suction inlet is reset.
During the discharge stroke, the plunger moves to the right, the pressure in the pump head rises immediately, when the pressure is higher than the pressure of the outlet pipeline, the outlet one-way valve ball is pushed upwards, the medium in the pump head enters the liquid outlet pipeline, when the discharge stroke is finished, the plunger stops again, the pressure in the pump head is the same as the pressure in the outlet pipeline, the outlet one-way valve ball resets, and then the next cycle starts again.
CN 210164626U discloses a plunger pump head structure, including the pump head body, pump head body both sides are provided with feed liquor pipe and drain pipe respectively, be provided with the valve that is used for controlling feed liquor pipe and drain pipe switching between feed liquor pipe, drain pipe and the pump head body, this internal plunger groove that communicates simultaneously with feed liquor pipe, drain pipe that is provided with of pump head, plunger inslot cooperation has the plunger, plunger middle part one side is provided with the intermediate ring, plunger groove is provided with back the liquid pipe with the position department of intermediate ring, it communicates with plunger groove, feed liquor pipe to return the liquid pipe. Above-mentioned structure can prevent the pump head weeping, can play fine environmental protection effect, nevertheless has the defect of the maintenance of not being convenient for, if the pump head takes place to block up, then needs long-time dismantlement and washing operation.
CN 109723636A discloses a front-replaceable sealing packing plunger pump head adopting a universal plug seal, which comprises a pump head shell with a front opening, a packing component, an improved universal plug seal ring, a front cover and the like. The front-changing sealing filler plunger pump head adopting the universal plug seal solves the problem of inconvenient operation caused by the fact that the pump head needs to be integrally disassembled when the sealing filler is replaced in the existing plunger pump, and the utility model discloses a pump head shell with a front opening and a filler assembly, which realizes the functions of disassembling, integrally replacing and maintaining the filler assembly from the front of the pump head, greatly simplifies the maintenance operation and improves the labor efficiency; and the plunger pump head adopting the front-changing sealing packing of the universal plug seal adopts the universal plug sealing ring as the packing, so that the friction force is reduced, the reliability is improved, and the abrasion loss is reduced.
Although this adopt to general fill before sealing up trade sealed packing plunger pump head can be convenient change the plunger and maintain, still have the inconvenient problem of maintenance to the feed liquor valve of pump head and play liquid valve.
CN 208089530U discloses intake chamber bottom installation formula high pressure plunger pump head structure, including the pump head, the pump head is the platykurtic, and both ends are detachable respectively about the pump head and install out water check valve and the check valve that intakes, the check valve that intakes pack into the pump head from the pump head bottom, on the pump head and be located intake check valve below detachable and install the intake chamber, the intake chamber on be equipped with the water inlet. The pump head structure is connected with the water inlet chamber in a split manner through the pump head, so that the processing technology can be simplified and materials can be saved. However, if the water outlet check valve and the water inlet check valve are blocked, the fastening bolt, the water inlet chamber and the valve seat nut need to be detached respectively; in order to facilitate the operation, even the plunger needs to be dismantled, so that the operation is inconvenient, and the defect that the operation cannot be stably performed at the later stage is easy to occur.
To this, provide a plunger pump head convenient to dismantle, when the check valve that intakes and/or play water check valve have the jam problem, only need simple operation can take out the check valve that intakes and/or play water check valve from the valve body, be favorable to improving the maintenance efficiency of plunger pump, also reduced the risk of overhauing misoperation.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a plunger pump head and plunger pump convenient to dismantle, the pump head passes through the adjustment of structure, has realized the setting to pump head body bottom and top seal spare, and when the impurity of the existence in the conveying fluid blockked up this internal feed liquor check valve of pump head and/or play liquid check valve, only need dismantle the dismantlement that can realize the feed liquor check valve and/or go out the liquid check valve to the sealing member to the maintenance efficiency of pump head has been improved.
To achieve the purpose, the utility model adopts the following technical proposal:
in a first aspect, the utility model provides a plunger pump head convenient to disassemble, which comprises a pump head body, a liquid inlet pipeline and a liquid outlet pipeline, wherein the liquid inlet pipeline is connected with the side surface of the bottom of the pump head body, and the liquid outlet pipeline is connected with the side surface of the top of the pump head body; the bottom and the top of the pump head body are respectively and independently provided with a sealing element which is detachably connected; the liquid inlet pipeline and the liquid outlet pipeline are communicated with the plunger groove at the same time.
The plunger pump head has liquid inlet check valve and liquid outlet check valve inside, and when the plunger pump head is in suction stroke, the pressure inside the pump head body is lowered and lower than the pressure inside the liquid inlet pipeline, so that the valve ball inside the liquid inlet check valve is pushed away and the medium inside the liquid inlet pipeline enters the pump head cavity; when the suction stroke is finished, the pressure in the pump head body is the same as the pressure in the liquid inlet pipeline, and the valve ball in the liquid inlet one-way valve is reset. During the discharging stroke, the pressure in the pump head body rises, when the pressure is higher than the pressure of the liquid outlet pipeline, the valve ball of the liquid outlet one-way valve is pushed away, the medium in the pump head body enters the liquid outlet pipeline, when the discharging stroke is finished, the pressure in the pump head body is the same as the pressure in the outlet pipeline, the valve ball of the liquid outlet one-way valve resets, and then the next cycle is started.
The feed liquor check valve of pump head, the structure of going out liquid check valve and plunger are the conventional structure in this area, the utility model discloses do not specifically inject. The plunger pump is used for conveying materials, so that the blockage risk of solid materials is inevitably caused. The utility model discloses a change pump head body feed liquor pipeline and liquid outlet pipe's position, realized the setting to pump head body bottom and top sealing member, when the impurity of the existence in the transport liquid blockked up this internal feed liquor check valve of pump head and/or go out the liquid check valve, only need dismantle the dismantlement that can realize the feed liquor check valve and/or go out the liquid check valve to the sealing member to the maintenance efficiency of pump head has been improved.
Preferably, the connection of the bottom of the pump head body to the seal comprises a threaded connection and/or a flanged connection. The bottom of the pump head body can be conveniently connected with the sealing element through a flange connection method or a thread connection method.
The utility model discloses do not do too much the injecing to the shape of the sealing member of being connected bottom the pump head body, as long as can seal the bottom of pump head body and can realize threaded connection and/or flange joint can.
Preferably, the connection of the top of the pump head body to the seal comprises a threaded connection and/or a flanged connection. The top of the pump head body can be conveniently connected with the sealing element through a flange connection method or a thread connection method.
The utility model discloses do not do too much the injecing to the shape of the sealing member of being connected with pump head body top, as long as can seal the top of pump head body and can realize threaded connection and/or flange joint can.
The structure of threaded connection is more compact than the structure of flange joint, and threaded connection's dismantlement is more convenient, therefore, the connected mode of the bottom of pump head body and sealing member is preferably threaded connection, the connected mode of the top of pump head body and sealing member is preferably threaded connection.
Preferably, the pump head body, the liquid inlet pipeline and the liquid outlet pipeline are respectively and independently provided with a jacket.
Further preferably, the pump head body and the liquid inlet pipeline are communicated with a jacket of the liquid outlet pipeline.
The utility model arranges the jacket on the pump head body, the liquid inlet pipeline and the liquid outlet pipeline, so that the temperature of the medium flowing in the pump head body, the liquid inlet pipeline and the liquid outlet pipeline is kept at the temperature required by the process; moreover, the pump head body jacket does not influence the disassembly of the sealing element, and in the process of maintaining the pump head, the jacket does not need to be additionally operated, and the sealing element is only required to be disassembled to realize the maintenance of the liquid inlet check valve and the liquid outlet check valve.
Preferably, the liquid inlet of the jacket is arranged on the jacket of the liquid inlet pipeline or the liquid outlet pipeline; and a liquid outlet of the jacket is arranged on the jacket of the liquid outlet pipeline or the liquid inlet pipeline.
When the pump head body and the liquid inlet pipeline are communicated with the jacket of the liquid outlet pipeline, the liquid inlet of the jacket is arranged on the jacket of the liquid inlet pipeline or the liquid outlet pipeline, and the liquid outlet of the jacket is arranged on the jacket of the liquid outlet pipeline or the liquid inlet pipeline. Namely, when the liquid inlet of the jacket is arranged on the jacket of the liquid inlet pipeline, the liquid outlet of the jacket is arranged on the jacket of the liquid outlet pipeline; when the liquid outlet of the jacket is arranged on the jacket of the liquid inlet pipeline, the liquid inlet of the jacket is arranged on the jacket of the liquid outlet pipeline. The person in the art can rationally set up the inlet position and the outlet position of pressing from both sides the cover according to the flow direction of the medium in pressing from both sides the cover, the utility model discloses do not specifically limit here.
Preferably, the connection mode of the liquid inlet pipeline and the side face of the bottom of the pump head body comprises threaded connection or welding.
Preferably, the connection mode of the liquid outlet pipeline and the side surface of the top of the pump head body comprises threaded connection or welding.
In a second aspect, the present invention provides a plunger pump comprising a pump head that is easy to disassemble as described in the first aspect.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a change pump head body feed liquor pipeline and liquid outlet pipe's position, realized the setting to pump head body bottom and top sealing member, when the impurity of the existence in the transport liquid blockked up this internal feed liquor check valve of pump head and/or go out the liquid check valve, only need dismantle the dismantlement that can realize the feed liquor check valve and/or go out the liquid check valve to the sealing member to the maintenance efficiency of pump head has been improved.
Drawings
Fig. 1 and 2 are schematic structural diagrams of a pump head of a plunger pump convenient to disassemble, provided in embodiment 1;
fig. 3 and 4 are schematic structural diagrams of the pump head of the easy-to-detach plunger pump provided in embodiment 2.
Wherein: 1, a liquid inlet pipeline; 2, a liquid outlet pipeline; 3, a sealing element; 4; a jacket; 5, a liquid inlet; 6, a liquid outlet; 7, a liquid inlet one-way valve; 8, a liquid outlet one-way valve; 9, plunger groove.
Detailed Description
It is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" in the description of the present invention are to be construed broadly, and may for example be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example 1
This embodiment provides a plunger pump head convenient to dismantle, the schematic diagram of structure of plunger pump head convenient to dismantle is shown in fig. 1 and fig. 2, including pump head body, inlet channel 1 and drain pipe 1, inlet channel 1 is connected with the side of pump head body bottom, and drain pipe 1 is connected with the side at pump head body top.
The bottom and the top of the pump head body are respectively and independently provided with a sealing element 3 which is detachably connected; the liquid inlet pipeline 1 and the liquid outlet pipeline 1 are simultaneously communicated with the plunger groove 9.
The bottom of pump head body and sealing member 3's connected mode are threaded connection, and the connected mode of pump head body's top and sealing member 3 includes threaded connection.
The pump head body, the liquid inlet pipeline 1 and the liquid outlet pipeline 1 are respectively and independently provided with a jacket 4, and the pump head body, the liquid inlet pipeline 1 and the jacket 4 of the liquid outlet pipeline 1 are communicated. The liquid inlet 5 of the jacket 4 is arranged on the jacket 4 of the liquid inlet pipeline 1, and the liquid outlet 6 of the jacket 4 is arranged on the jacket 4 of the liquid outlet pipeline 1.
The liquid inlet pipeline 1 is in threaded connection with the side face of the bottom of the pump head body; the liquid outlet pipeline 1 is in threaded connection with the side face of the top of the pump head body.
A liquid inlet one-way valve 7 and a liquid outlet one-way valve 8 are arranged in the body of the pump head of the plunger pump, when the plunger pump is in a suction stroke, the pressure in the body of the pump head is reduced, the pressure in the body of the pump head is lower than the pressure in the liquid inlet pipeline 1, a valve ball in the liquid inlet one-way valve 7 is pushed away, and a medium in the liquid inlet pipeline 1 enters a chamber of the pump head; when the suction stroke is finished, the pressure in the pump head body is the same as the pressure in the liquid inlet pipeline 1, and the valve ball in the liquid inlet one-way valve 7 is reset. During the discharging stroke, the pressure in the pump head body rises, when the pressure is higher than the pressure of the liquid outlet pipeline 1, the valve ball of the liquid outlet one-way valve 8 is pushed away, the medium in the pump head body enters the liquid outlet pipeline 1, when the discharging stroke is finished, the pressure in the pump head body is the same as the pressure in the outlet pipeline, the valve ball of the liquid outlet one-way valve 8 resets, and then the next cycle is started.
When plunger pump head convenient to dismantle blockked up, only need dismantle pump head body bottom and the sealing member 3 at top, can take out feed liquor check valve 7 and play liquid check valve 8. Need not separate pump head and plunger, also need not do too much operation to pressing from both sides cover 4, consequently, the quick dismantlement of feed liquor check valve 7 and play liquid check valve 8 can be realized to the plunger pump head convenient to dismantle that this embodiment provided.
Example 2
This embodiment provides a plunger pump head convenient to dismantle, the schematic diagram of structure of plunger pump head convenient to dismantle is shown in fig. 3 and fig. 4, including pump head body, inlet channel 1 and drain pipe 1, inlet channel 1 is connected with the side of pump head body bottom, and drain pipe 1 is connected with the side at pump head body top.
The bottom and the top of the pump head body are respectively and independently provided with a sealing element 3 which is detachably connected; the liquid inlet pipeline 1 and the liquid outlet pipeline 1 are simultaneously communicated with the plunger groove 9.
The bottom of pump head body and sealing member 3's connected mode are flange joint, and the top of pump head body and sealing member 3's connected mode includes flange joint.
The pump head body, the liquid inlet pipeline 1 and the liquid outlet pipeline 1 are respectively and independently provided with a jacket 4, and the pump head body, the liquid inlet pipeline 1 and the jacket 4 of the liquid outlet pipeline 1 are communicated. The liquid inlet 5 of the jacket 4 is arranged on the jacket 4 of the liquid outlet pipeline 1, and the liquid outlet 6 of the jacket 4 is arranged on the jacket 4 of the liquid inlet pipeline 1.
The liquid inlet pipeline 1 is connected with the side face of the bottom of the pump head body in a flange mode; the liquid outlet pipeline 1 is connected with the side face of the top of the pump head body in a flange mode.
A liquid inlet one-way valve 7 and a liquid outlet one-way valve 8 are arranged in the body of the pump head of the plunger pump, when the plunger pump is in a suction stroke, the pressure in the body of the pump head is reduced, the pressure in the body of the pump head is lower than the pressure in the liquid inlet pipeline 1, a valve ball in the liquid inlet one-way valve 7 is pushed away, and a medium in the liquid inlet pipeline 1 enters a chamber of the pump head; when the suction stroke is finished, the pressure in the pump head body is the same as the pressure in the liquid inlet pipeline 1, and the valve ball in the liquid inlet one-way valve 7 is reset. During the discharging stroke, the pressure in the pump head body rises, when the pressure is higher than the pressure of the liquid outlet pipeline 1, the valve ball of the liquid outlet one-way valve 8 is pushed away, the medium in the pump head body enters the liquid outlet pipeline 1, when the discharging stroke is finished, the pressure in the pump head body is the same as the pressure in the outlet pipeline, the valve ball of the liquid outlet one-way valve 8 resets, and then the next cycle is started.
When plunger pump head convenient to dismantle blockked up, only need dismantle pump head body bottom and the sealing member 3 at top, can take out feed liquor check valve 7 and play liquid check valve 8. Need not separate pump head and plunger, also need not do too much operation to pressing from both sides cover 4, consequently, the quick dismantlement of feed liquor check valve 7 and play liquid check valve 8 can be realized to the plunger pump head convenient to dismantle that this embodiment provided.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (10)
1. A plunger pump head convenient to disassemble comprises a pump head body, a liquid inlet pipeline and a liquid outlet pipeline, and is characterized in that the liquid inlet pipeline is connected with the side surface of the bottom of the pump head body, and the liquid outlet pipeline is connected with the side surface of the top of the pump head body;
the bottom and the top of the pump head body are respectively and independently provided with a sealing element which is detachably connected;
the liquid inlet pipeline and the liquid outlet pipeline are communicated with the plunger groove at the same time.
2. A pump head for a plunger pump convenient to disassemble as claimed in claim 1, wherein the means of connection of the base of the pump head body to the seal comprises a threaded connection and/or a flanged connection.
3. A pump head for a plunger pump convenient to disassemble as claimed in claim 1 or 2, wherein the means of connection of the top of the pump head body to the seal comprises a threaded connection and/or a flanged connection.
4. A pump head for a plunger pump convenient to disassemble as claimed in claim 3, wherein the bottom of the pump head body is connected to the sealing member by a screw thread connection and the top of the pump head body is connected to the sealing member by a screw thread connection.
5. A pump head of a plunger pump convenient to disassemble as claimed in claim 1, wherein the pump head body, the liquid inlet pipeline and the liquid outlet pipeline are provided with jackets independently.
6. A pump head for a plunger pump convenient to disassemble as claimed in claim 5, wherein the pump head body, the inlet pipe and the outlet pipe are in communication with the jacket.
7. A pump head of a plunger pump convenient to detach as claimed in claim 6, wherein the liquid inlet of the jacket is arranged on the jacket of the liquid inlet pipeline or the liquid outlet pipeline;
and a liquid outlet of the jacket is arranged on the jacket of the liquid outlet pipeline or the liquid inlet pipeline.
8. A pump head for a plunger pump convenient to disassemble as claimed in claim 1, wherein the liquid inlet pipe is connected to the side of the bottom of the pump head body by a screw or by welding.
9. A pump head for a plunger pump convenient to disassemble as claimed in claim 1 or 8, wherein the connection means of the outlet tube to the side of the top of the pump head body comprises a threaded connection or a weld.
10. A plunger pump comprising a readily removable plunger pump head as claimed in any one of claims 1 to 9.
Priority Applications (1)
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CN202020738740.6U CN212360164U (en) | 2020-05-07 | 2020-05-07 | Plunger pump head and plunger pump convenient to dismantle |
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CN202020738740.6U CN212360164U (en) | 2020-05-07 | 2020-05-07 | Plunger pump head and plunger pump convenient to dismantle |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111441939A (en) * | 2020-05-07 | 2020-07-24 | 江苏新河农用化工有限公司 | Plunger pump head and plunger pump convenient to dismantle |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111441939A (en) * | 2020-05-07 | 2020-07-24 | 江苏新河农用化工有限公司 | Plunger pump head and plunger pump convenient to dismantle |
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