CN219975510U - Double-piston balanced pressure release valve - Google Patents

Double-piston balanced pressure release valve Download PDF

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Publication number
CN219975510U
CN219975510U CN202321435865.1U CN202321435865U CN219975510U CN 219975510 U CN219975510 U CN 219975510U CN 202321435865 U CN202321435865 U CN 202321435865U CN 219975510 U CN219975510 U CN 219975510U
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China
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valve
piston
spring
cylinder body
cover
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Active
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CN202321435865.1U
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Chinese (zh)
Inventor
王建表
廖芝金
陈乙飞
佘导演
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Anhui Redstar Valve Co Ltd
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Anhui Redstar Valve Co Ltd
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Priority to CN202321435865.1U priority Critical patent/CN219975510U/en
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Abstract

The utility model belongs to the field of pressure relief valves, and particularly relates to a double-piston balanced pressure relief valve, which aims to solve the problem that a spring needs to bear larger pressure and has larger loss on the spring when the pressure relief valve is opened, and comprises a valve body, a valve cover and a valve core structure arranged between the valve body and the valve cover; an inlet and an outlet are formed in the valve body, a partition piece for separating the inlet from the outlet is arranged in the valve body, and a pressure relief opening is formed in the partition piece; the valve cover is detachably connected to the valve body; the valve core structure comprises a valve clack, a spring and a driving component, wherein the driving component forms a sealed pressure-bearing space, the pressure-bearing space is communicated with the inlet, and the spring and the driving component drive the valve clack to move to block the pressure relief opening. The utility model can make the spring and the driving component act on the valve clack simultaneously to block the pressure relief opening, the spring can adopt the spring with smaller rigidity, and the spring does not need to bear larger pressure when the pressure relief valve is opened, so that the loss of the spring is smaller, and the effect of protecting the spring is achieved.

Description

Double-piston balanced pressure release valve
Technical Field
The utility model belongs to the field of pressure relief valves, and particularly relates to a double-piston balanced pressure relief valve.
Background
The pressure release valve can be automatically opened and closed according to the working pressure of the system, and is generally arranged on equipment or a pipeline of a closed system to protect the safety of the system. When the pressure in the equipment or the pipeline exceeds the set pressure of the pressure relief valve, the pressure relief valve is automatically opened, so that the medium pressure in the equipment and the pipeline is ensured to be under the set pressure, the equipment and the pipeline are protected, and accidents are prevented.
The common relief valve is spring-type relief valve, through the effort of spring, make between valve clack and the disk seat form sealedly, install the relief valve in the pipeline, when the pressure in the pipeline is greater than the effort of spring, valve clack and disk seat separation, the relief valve is opened, after the pressure in the pipeline descends, the spring promotes valve clack and disk seat contact, makes the relief valve close.
The following problems exist in the related art: under the initial condition, the spring promotes valve clack and disk seat butt, and the relief valve is closed state this moment, in order to make the relief valve can bear great pressure, need use the spring of rigidity great, and when the relief valve was opened, the spring need bear great pressure, and is great to the loss of spring, need the periodic replacement spring.
Disclosure of Invention
In order to reduce the pressure born by the spring when the pressure relief valve is in an open state, the utility model provides a double-piston balanced pressure relief valve.
The utility model provides a double-piston balanced pressure release valve which adopts the following technical scheme:
a double-piston balanced pressure release valve comprises a valve body, a valve cover and a valve core structure arranged between the valve body and the valve cover; an inlet and an outlet are formed in the valve body, a partition piece for separating the inlet from the outlet is arranged in the valve body, and a pressure relief opening is formed in the partition piece; the valve cover is detachably connected to the valve body; the valve core structure comprises a valve clack, a spring and a driving assembly, wherein the driving assembly forms a sealed pressure-bearing space, the pressure-bearing space is communicated with the inlet, and the spring and the driving assembly drive the valve clack to move to block the pressure relief opening.
Through adopting above-mentioned technical scheme, install this relief valve in the pipeline, medium gets into the valve body from the import, drive assembly stores the medium of import department simultaneously, spring and drive assembly act on the valve clack simultaneously, make it block up the pressure release mouth to the spring that the spring can adopt the rigidity less, when the relief valve was opened, need to counter spring and drive assembly's effort simultaneously, the spring need not to bear great pressure, less to the loss of spring, plays the effect of protection spring.
As a further preferred, the driving assembly comprises an upper valve shaft, a lower valve shaft, an upper piston, a lower piston and a communicating pipe, wherein the upper valve shaft and the lower valve shaft are coaxially arranged, the valve clack is coaxially arranged on the lower valve shaft, the upper piston and the lower piston are coaxially sleeved outside the upper valve shaft, a closed cavity is formed between the upper piston and the lower piston, and the communicating pipe is used for communicating the closed cavity with the inlet.
Through adopting above-mentioned technical scheme, the medium of import gets into in the airtight cavity between upper piston and the lower piston through communicating pipe, upper piston and lower piston pass through the valve shaft and connect into wholly to upper piston and lower piston synchronous motion guarantee airtight cavity's leakproofness.
As a further preferred aspect, the area of the lower piston is larger than the area of the upper piston, and the area of the lower piston is smaller than the sum of the areas of the upper piston and the lower piston.
Through adopting above-mentioned technical scheme, because the area of lower piston is greater than the area of last piston, consequently decurrent effort is great, cooperates the decurrent effort of spring simultaneously, goes up the valve shaft and promotes the valve shaft under this moment and makes the valve clack close the pressure release mouth, and when the relief valve was opened, the pressure that the spring bore was for upward piston and valve clack decurrent effort of lower piston subtraction to can accomplish the pressure release, the structure is ingenious, and the effect is better.
As a further preferable mode, the upper valve shaft is provided with a limiting piece, the limiting piece is located between the upper piston and the lower piston, the upper piston and the lower piston are all in butt joint with the limiting piece, a nut is connected to the upper valve shaft through threads, the nut is in butt joint with the upper piston, the upper valve shaft is in threaded connection with the lower valve shaft, and the lower valve shaft is in butt joint with the lower piston.
Through adopting above-mentioned technical scheme, nut and locating part are fixed the position of going up the piston, and lower valve shaft and locating part are fixed the position of going up the piston to make the relative position between last piston and the lower piston confirm, make last piston and lower piston can be along with last valve shaft simultaneous stable motion, and then go up the effort that piston and lower piston received also more stable.
As a further preferable mode, the driving assembly further comprises a lower cylinder body and an upper cylinder body, the lower cylinder body and the upper cylinder body are arranged between the valve body and the valve cover, the lower piston is attached to the inner wall of the lower cylinder body, the upper piston is attached to the inner wall of the upper cylinder body, and the valve cover is connected with the valve body through bolts.
Through adopting above-mentioned technical scheme, when valve gap and valve body pass through bolted connection, press from both sides tightly fixedly to lower cylinder body and last cylinder body, lower piston and the inner wall laminating of lower cylinder body, go up the inner wall laminating of piston and last cylinder body to form airtight space between messenger's upper piston and the lower piston.
As a further preferable mode, the valve body is provided with a first mounting groove for embedding the lower cylinder body, the lower cylinder body is provided with a second mounting groove for embedding the upper cylinder body, and the valve cover is provided with a third mounting groove for embedding the upper cylinder body.
Through adopting above-mentioned technical scheme, in embedding the first mounting groove on the valve body when the cylinder body is installed down, in embedding the second mounting groove of valve body down when going up the cylinder body, make in the last cylinder body embedding third mounting groove when installing the valve gap to improve the installation stability between valve body, the lower cylinder body, the last cylinder body, the valve gap.
As a further preferable mode, first sealing elements are arranged between the lower cylinder body and the valve body as well as between the upper cylinder body, second sealing elements are arranged between the upper piston and the lower piston as well as between the upper piston and the upper valve shaft, and third sealing elements are arranged on the peripheral walls of the upper piston and the lower piston.
Through adopting above-mentioned technical scheme, the leakproofness between cylinder body and the last cylinder body down is improved to first sealing member, and the leakproofness between piston and the lower piston and the last valve shaft is improved to the second sealing member, and the leakproofness between upper piston and the last cylinder body, between lower piston and the lower cylinder body is improved to the third sealing member to make airtight cavity's leakproofness better.
As a further preferable mode, the valve body and the lower cylinder body are provided with first positioning grooves which are embedded and matched with the first sealing element, and the upper piston and the lower piston are provided with second positioning grooves which are embedded and matched with the second sealing element and third positioning grooves which are embedded and matched with the third sealing element.
Through adopting above-mentioned technical scheme, first sealing member, second sealing member and third sealing member set up respectively in corresponding first constant head tank, second constant head tank and third constant head tank, improve installation stability to when last piston and lower piston motion, can keep better sealed effect.
As a further preferred aspect, the spring is coaxially disposed between the valve cover and the upper piston, and an adjusting component for adjusting the acting force of the spring on the upper piston is disposed on the valve cover.
Through adopting above-mentioned technical scheme, adjusting part adjusting spring is to the effort of last piston to changing this relief valve and opening when different pressures, making this relief valve be applicable to in the pipeline of difference, the suitability is better.
As a further preferred aspect, the adjusting assembly includes a spring cover and a screw, the spring cover is disposed at one end of the spring away from the upper piston, the screw is in threaded connection with the valve cover, the screw is in abutting connection with the spring cover, a first nut is in threaded connection with the screw, and the first nut is in abutting connection with the valve cover.
Through adopting above-mentioned technical scheme, rotate the screw and compress tightly or loosen the spring cap to can adjust the spring force of spring, change the effort of spring to last piston, and make the position of screw fixed through first nut, make the position of screw more stable.
As a further preferred, a sealing ring is arranged on one side of the valve clack, which is close to the partition, the sealing ring is in butt joint with the partition, a locking component is arranged on the lower valve shaft, the component comprises a screw rod which is coaxially and fixedly connected to the bottom of the lower valve shaft, the diameter of the screw rod is smaller than that of the lower valve shaft, the valve clack is sleeved on the screw rod, a limiting ring and a second nut are sleeved on the screw rod, the screw rod is in threaded connection with the second nut and is matched with the second nut, and the second nut is rotated to enable the limiting ring to be in butt joint with the sealing ring.
Through adopting above-mentioned technical scheme, the leakproofness between valve clack and the separator is improved in the setting of sealing washer, makes the valve clack better to the shutoff effect of pressure release mouth, and the second nut makes the spacing ring fix the sealing washer simultaneously, improves the installation stability of sealing washer, and valve clack convenient to detach maintains.
In summary, the utility model has at least the following beneficial technical effects:
1. the pressure release valve is arranged in the pipeline, medium enters the valve body from the inlet, meanwhile, the driving component stores the medium at the inlet, and the spring and the driving component act on the valve clack simultaneously to block the pressure release opening, so that the spring can adopt a spring with smaller rigidity;
2. the medium at the inlet enters the airtight cavity between the upper piston and the lower piston through the communicating pipe, the area of the lower piston is larger than that of the upper piston, so that downward acting force is larger, and the downward acting force of the spring is matched, at the moment, the upper valve shaft pushes the lower valve shaft to enable the valve clack to close the pressure relief opening, when the pressure relief valve is opened, the downward acting force of the lower piston is subtracted from the upward acting force of the upper piston and the valve clack, so that pressure relief can be completed, the structure is simple and ingenious, and the effect is better;
3. the spring cover is pressed or loosened through the rotating screw, so that the spring force of the spring can be adjusted, the acting force of the spring on the upper piston is changed, the position of the screw is fixed through the first nut, the pressure relief valve is changed to be opened under different pressures, and the pressure relief valve is applicable to different pipelines and has better applicability.
Drawings
FIG. 1 is a schematic elevational view of an embodiment of the present utility model;
FIG. 2 is a schematic top view of an embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view taken along line A-A in FIG. 2;
FIG. 4 is an enlarged schematic view of portion B of FIG. 3;
fig. 5 is an enlarged schematic view of a portion C in fig. 3.
The same reference numbers are used throughout the drawings to reference like elements or structures, wherein:
1. a valve body; 11. an inlet; 12. an outlet; 13. a partition; 131. a pressure relief port; 14. a first mounting groove; 15. a first seal; 16. a first positioning groove; 2. a valve cover; 21. a third mounting groove; 3. a valve core structure; 31. a valve flap; 311. a seal ring; 32. a spring; 33. a drive assembly; 331. an upper valve shaft; 3311. a limiting piece; 3312. a screw cap; 332. a lower valve shaft; 333. an upper piston; 3331. a second seal; 3332. a third seal; 3333. a second positioning groove; 3334. a third positioning groove; 334. a lower piston; 335. a communicating pipe; 336. a lower cylinder; 3361. a second mounting groove; 337. an upper cylinder; 4. a bolt; 5. an adjustment assembly; 51. a spring cover; 52. a screw; 53. a first nut; 6. a locking assembly; 61. a screw; 62. a limiting ring; 63. and a second nut.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model is described in further detail below with reference to fig. 1-5.
The embodiment of the utility model discloses a double-piston balanced pressure relief valve.
The utility model provides a balanced relief valve of double piston includes valve body 1, valve gap 2, case structure 3 and bolt 4, and case structure 3 sets up between valve body 1 and valve gap 2, and valve body 1 and valve gap 2 pass through bolt 4 fixed connection and become wholly. An inlet 11 and an outlet 12 are formed in the valve body 1, a partition piece 13 for separating the inlet 11 from the outlet 12 is fixedly connected to the inside of the valve body 1, a pressure relief opening 131 is formed in the partition piece 13, and the pressure relief opening 131 is blocked and closed through the valve core structure 3; the valve body 1 is installed in the pipeline, and when the pressure in the pipeline is high, the pressure relief port 131 is opened to reduce the pressure in the pipeline.
In order to realize plugging the pressure relief opening 131, in this embodiment, the valve core structure 3 includes a valve clack 31, a spring 32 and a driving component 33, the driving component forms a sealed pressure-bearing space, and the pressure-bearing space is communicated with the inlet 11, and the valve clack 31 is driven to move simultaneously to plug the pressure relief opening 131 through the spring 32 and the driving component 33, so that the spring 32 can use a specification with smaller rigidity.
The driving assembly 33 comprises an upper valve shaft 331, a lower valve shaft 332, an upper piston 333, a lower piston 334, a communicating pipe 335, a lower cylinder 336 and an upper cylinder 337, wherein the lower cylinder 336 and the upper cylinder 337 are sequentially arranged between the valve body 1 and the valve cover 2 from bottom to top, in order to improve the installation stability, a first installation groove 14 in which the lower cylinder 336 is embedded is formed in the valve body 1, a second installation groove 3361 in which the upper cylinder 337 is embedded is formed in the lower cylinder 336, a third installation groove 21 in which the upper cylinder 337 is embedded is formed in the valve cover 2, the lower cylinder 336 is embedded in the first installation groove 14 in the valve body 1 when the upper cylinder 337 is embedded in the second installation groove 3361 of the lower valve body 1, the upper cylinder 337 is embedded in the third installation groove 21 when the valve cover 2 is installed, and the valve body 1 and the valve cover 2 are connected through bolts 4, so that the installation stability among the valve body 1, the lower cylinder 336, the upper cylinder 337 and the valve cover 2 is improved; the first sealing elements 15 are arranged between the lower cylinder 336 and the valve body 1, and the first positioning grooves 16 which are embedded and matched with the first sealing elements 15 are formed in the valve body 1 and the lower cylinder 336, so that the tightness between the lower cylinder 336 and the valve body 1, and between the lower cylinder 337 is improved.
The lower piston 334 is attached to the inner wall of the lower cylinder 336, the upper piston 333 is attached to the inner wall of the upper cylinder 337, the upper piston 333 and the lower piston 334 are coaxially sleeved outside the upper valve shaft 331, a limiting piece 3311 is integrally formed in the middle of the upper valve shaft 331, the limiting piece 3311 is positioned between the upper piston 333 and the lower piston 334, the upper piston 333 and the lower piston 334 are both abutted to the limiting piece 3311, a nut 3312 is specifically connected to the upper valve shaft 331 in a threaded manner, the upper piston 333 is abutted to the limiting piece 3311 by rotating the nut 3312, the upper valve shaft 331 is coaxially arranged with the lower valve shaft 332, the upper valve shaft 331 is in threaded connection with the lower valve shaft 332, the lower valve shaft 332 is abutted to the limiting piece 3311 by rotating the lower valve shaft 332, the valve clack 31 is coaxially arranged on the lower piston 332, therefore, the upper piston 333, the lower piston 334, the lower piston 332 and the valve clack 31 are relatively fixed, a closed cavity is formed between the upper piston 333, the lower piston 334 and the upper cylinder 337 and the lower cylinder 336, the area of the upper piston 334 is larger than the area of the upper piston 334 and the area of the lower piston 334 is larger than the area of the upper piston 334;
in order to improve the tightness of the sealed cavity, a second sealing element 3331 is arranged between the upper piston 333 and the lower piston 334 and the upper valve shaft 331, a third sealing element 3332 is arranged on the outer peripheral walls of the upper piston 333 and the lower piston 334, a second positioning groove 3333 which is embedded and matched with the second sealing element 3331 and a third positioning groove 3334 which is embedded and matched with the third sealing element 3332 are arranged on the upper piston 333 and the lower piston 334, in the embodiment, the first sealing element 15, the second sealing element 3331 and the third sealing element 3332 are all sealing rings made of rubber materials, and in the moving process of the upper piston 333 and the lower piston 334, the positions of the second sealing element 3331 and the third sealing element 3332 are stable, so that a good sealing effect is maintained.
The communicating pipe 335 is used for communicating the closed cavity and the inlet 11, specifically, the inlet 11 of the valve body 1 and the lower cylinder 336 are both provided with communicating ports, both ends of the communicating pipe 335 are provided with flanges, and the communicating pipe is connected to the valve body 1 and the lower cylinder 336 through the flanges, so that the communication between the closed cavity and the inlet 11 is realized; the medium at the inlet 11 enters the airtight cavity between the upper piston 333 and the lower piston 334 through the communicating pipe 335, because the area of the lower piston 334 is larger than that of the upper piston 333, the downward acting force is larger, and simultaneously the downward acting force of the spring 32 is matched, at this time, the upper valve shaft 331 pushes the lower valve shaft 332 to enable the valve clack 31 to close the pressure relief opening 131, when the pressure relief valve is opened, the upward acting force of the upper piston 333 and the valve clack 31 is subtracted by the downward acting force of the lower piston 334 by the pressure born by the spring 32, so that the pressure relief can be completed, the pressure born by the spring 32 is smaller, and the loss to the spring 32 is smaller.
In order to improve the plugging effect of the valve clack 31 on the pressure relief opening 131, a sealing ring 311 is arranged on one side of the valve clack 31, which is close to the partition 13, a groove for the sealing ring 311 to be embedded is formed in the valve clack 31, the sealing ring 311 is abutted to the partition 13, a locking assembly 6 is arranged on the lower valve shaft 332, the valve clack 31 and the sealing ring 311 are fixed through the locking assembly 6, in this embodiment, the locking assembly 6 comprises a screw 61 coaxially and fixedly connected to the bottom of the lower valve shaft 332, the diameter of the screw 61 is smaller than that of the lower valve shaft 332, the valve clack 31 is sleeved on the screw 61, a rubber sealing ring is also arranged between the valve clack 31 and the screw 61, a limiting ring 62 and a second nut 63 are sleeved on the screw 61, the screw 61 is in threaded connection fit with the second nut 63, and the second nut 63 is rotated to enable the limiting ring 62 to be abutted to the sealing ring 311, so that the valve clack 31 and the sealing ring 311 are fixed.
In order to make the relief valve suitable for the environment of different pressure pipelines, be provided with the adjusting part 5 that is used for adjusting the spring 32 to go up piston 333 effort on the valve gap 2, in this embodiment, adjusting part 5 includes spring cap 51 and screw 52, spring cap 51 sets up in the spring 32 one end that is kept away from last piston 333, screw 52 and valve gap 2 threaded connection, screw 52 and spring cap 51 butt, screw 52 go up threaded connection and have first nut 53, first nut 53 and valve gap 2 butt, rotate screw 52 and compress tightly or loosen spring cap 51, thereby can adjust the spring force of spring 32, change the effort of spring 32 to last piston 333, change this relief valve and open when different pressures, accomplish the pressure release.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (10)

1. A double-piston balanced pressure release valve is characterized in that: the valve comprises a valve body (1), a valve cover (2) and a valve core structure (3) arranged between the valve body (1) and the valve cover (2);
an inlet (11) and an outlet (12) are formed in the valve body (1), a partition piece (13) for separating the inlet (11) from the outlet (12) is arranged in the valve body (1), and a pressure relief opening (131) is formed in the partition piece (13);
the valve cover (2) is detachably connected to the valve body (1);
the valve core structure (3) comprises a valve clack (31), a spring (32) and a driving assembly (33), wherein the driving assembly (33) forms a sealed pressure-bearing space, the pressure-bearing space is communicated with the inlet (11), and the spring (32) and the driving assembly (33) drive the valve clack (31) to move to block the pressure relief opening (131).
2. A double piston balanced relief valve according to claim 1 wherein: the driving assembly (33) comprises an upper valve shaft (331), a lower valve shaft (332), an upper piston (333), a lower piston (334) and a communicating pipe (335), wherein the upper valve shaft (331) and the lower valve shaft (332) are coaxially arranged, the valve clack (31) is arranged on the lower valve shaft (332), the upper piston (333) and the lower piston (334) are both sleeved outside the upper valve shaft (331), a closed cavity is formed between the upper piston (333) and the lower piston (334), and the communicating pipe (335) is communicated with the closed cavity and the inlet (11).
3. A double piston balanced relief valve according to claim 2 wherein: the area of the lower piston (334) is larger than the area of the upper piston (333), and the area of the lower piston (334) is smaller than the sum of the areas of the upper piston (333) and the lower piston (334).
4. A double piston balanced relief valve according to claim 2 wherein: the upper valve shaft (331) is provided with a limiting piece (3311), the limiting piece (3311) is located between the upper piston (333) and the lower piston (334), and the upper piston (333) and the lower piston (334) are both in butt joint with the limiting piece (3311).
5. A double piston balanced relief valve according to claim 2 wherein: the driving assembly (33) further comprises a lower cylinder body (336) and an upper cylinder body (337), the lower cylinder body (336) and the upper cylinder body (337) are arranged between the valve body (1) and the valve cover (2), the lower piston (334) is attached to the inner wall of the lower cylinder body (336), the upper piston (333) is attached to the inner wall of the upper cylinder body (337), and the valve cover (2) is connected with the valve body (1) through a bolt (4).
6. The double piston balanced relief valve according to claim 5 wherein: the valve body (1) is provided with a first mounting groove (14) for embedding the lower cylinder body (336), the lower cylinder body (336) is provided with a second mounting groove (3361) for embedding the upper cylinder body (337), and the valve cover (2) is provided with a third mounting groove (21) for embedding the upper cylinder body (337).
7. The double piston balanced relief valve according to claim 5 wherein: the valve is characterized in that first sealing elements (15) are arranged between the lower cylinder body (336) and the valve body (1) and between the upper cylinder body (337), second sealing elements (3331) are arranged between the upper piston (333) and the lower piston (334) and between the upper valve shaft (331), and third sealing elements (3332) are arranged on the outer peripheral walls of the upper piston (333) and the lower piston (334).
8. A double piston balanced relief valve according to claim 2 wherein: the spring (32) is coaxially arranged between the valve cover (2) and the upper piston (333), and an adjusting component (5) for adjusting the acting force of the spring (32) on the upper piston (333) is arranged on the valve cover (2).
9. The double piston balanced relief valve of claim 8, wherein: the adjusting assembly (5) comprises a spring cover (51) and a screw (52), the spring cover (51) is arranged at one end, far away from the upper piston (333), of the spring (32), the screw (52) is in threaded connection with the valve cover (2), and the screw (52) is in butt joint with the spring cover (51).
10. A double piston balanced relief valve according to claim 2 wherein: a sealing ring (311) is arranged on one side of the valve clack (31) close to the partition piece (13), and the sealing ring (311) is abutted to the partition piece (13).
CN202321435865.1U 2023-06-06 2023-06-06 Double-piston balanced pressure release valve Active CN219975510U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321435865.1U CN219975510U (en) 2023-06-06 2023-06-06 Double-piston balanced pressure release valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321435865.1U CN219975510U (en) 2023-06-06 2023-06-06 Double-piston balanced pressure release valve

Publications (1)

Publication Number Publication Date
CN219975510U true CN219975510U (en) 2023-11-07

Family

ID=88592323

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321435865.1U Active CN219975510U (en) 2023-06-06 2023-06-06 Double-piston balanced pressure release valve

Country Status (1)

Country Link
CN (1) CN219975510U (en)

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