CN208381763U - A kind of pressure management valve and water supply pipline system - Google Patents

A kind of pressure management valve and water supply pipline system Download PDF

Info

Publication number
CN208381763U
CN208381763U CN201821013686.8U CN201821013686U CN208381763U CN 208381763 U CN208381763 U CN 208381763U CN 201821013686 U CN201821013686 U CN 201821013686U CN 208381763 U CN208381763 U CN 208381763U
Authority
CN
China
Prior art keywords
valve
pressure
chamber
ante
back cavity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201821013686.8U
Other languages
Chinese (zh)
Inventor
邹江华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Aiertai Fluid Control Co Ltd
Original Assignee
Suzhou Aiertai Fluid Control Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Aiertai Fluid Control Co Ltd filed Critical Suzhou Aiertai Fluid Control Co Ltd
Priority to CN201821013686.8U priority Critical patent/CN208381763U/en
Application granted granted Critical
Publication of CN208381763U publication Critical patent/CN208381763U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a kind of pressure management valve and water supply pipline system, is related to valve body technical field.In pressure management valve, main valve has epicoele, valve ante-chamber and valve back cavity, and valve ante-chamber is connected to valve back cavity, and epicoele and valve ante-chamber and valve back cavity completely cut off;The input terminal of first decompression pilot valve is connected to valve ante-chamber, and the output end of the first decompression pilot valve is connected to valve back cavity;The conducting pressure of second decompression pilot valve is greater than the conducting pressure of the first decompression pilot valve;The input terminal of time switch module is connected to valve ante-chamber, and the output end of time switch module is connected to the input terminal of the second decompression pilot valve, and the output end of the second decompression pilot valve is connected to valve back cavity, and time switch module is closed for timing or conducting;One end of throttle valve is connected to epicoele, and the other end of throttle valve is connected to valve ante-chamber.Pressure management valve can adjust the pressure of outlet, while be suitable for the low situation of water demand amount high situation and water demand amount.

Description

A kind of pressure management valve and water supply pipline system
Technical field
The utility model relates to valve body technical fields, in particular to a kind of pressure management valve and water supply pipline system.
Background technique
It is well known that each cell daily in different time period, is different the demand of tap water, for example, one As cell daytime it is higher to the demand of water, it is lower to the demand of water at night.But the pressure of the outlet of existing valve body is When big for the demand of water, often there is the inadequate situation of pressure, is not able to satisfy the water demand of user in one definite value, right In the demand hour of water, often there is the excessive situation of pressure, pipe-line system is caused drainage occur.
Therefore, design a kind of valve body, can adjust the pressure of outlet, at the same be suitable for the high situation of water demand amount and The low situation of water demand amount.
Utility model content
The utility model embodiment provides a kind of pressure management valve and water supply pipline system, can adjust the pressure of outlet Power, while being suitable for the low situation of water demand amount high situation and water demand amount.
The first technical solution provided by the embodiment of the utility model:
A kind of pressure management valve includes:
Main valve, the main valve have epicoele, valve ante-chamber and valve back cavity, and the valve ante-chamber is connected to the valve back cavity, described Epicoele and the valve ante-chamber and the valve back cavity completely cut off;
The input terminal of first decompression pilot valve, the first decompression pilot valve is connected to the valve ante-chamber, and described first subtracts The output end for pressing to pilot valve is connected to the valve back cavity;
The conducting pressure of second decompression pilot valve, the second decompression pilot valve is greater than leading for the first decompression pilot valve Logical pressure;
Time switch module, the input terminal of the time switch module are connected to the valve ante-chamber, the time switch mould The output end of block is connected to the input terminal of the second decompression pilot valve, the output end and the valve of the second decompression pilot valve Back cavity connection, the time switch module is closed for timing or conducting;
Throttle valve, one end of the throttle valve are connected to the epicoele, the other end of the throttle valve and the valve ante-chamber Connection.
Further, the time switch module includes pressure difference switch, three-way magnetic valve and control box, the pressure difference switch Input terminal be connected to the valve ante-chamber, the output end of the pressure difference switch and it is described second decompression pilot valve input terminal connect Logical, the control terminal of the pressure difference switch is connected to the first end A1 of the three-way magnetic valve, the second end of the three-way magnetic valve B1 is connected to the valve ante-chamber, and the third end C1 of the three-way magnetic valve is communicated with the atmosphere, and the control box and described three is powered The control terminal of magnet valve is electrically connected, the first end A1 that the control box is used to control the three-way magnetic valve be connected to second end B1 or The first end A1 that person controls the three-way magnetic valve is connected to third end C1.
Further, the time switch module further includes three-way ball valve, the first end A2 of the three-way ball valve with it is described The first end A1 of three-way magnetic valve is connected to, and the second end B2 of the three-way ball valve is connected to the control terminal of the pressure difference switch, institute The third end C2 for stating three-way ball valve is connected to the valve ante-chamber.
Further, the pressure management valve further includes filter, and the filter is mounted on the outlet of the valve ante-chamber Place.
Further, the pressure management valve further includes the first ball valve, the second ball valve and third ball valve, first ball valve It is mounted on the exit of the valve ante-chamber, second ball valve is mounted between the throttle valve and the epicoele, the third Ball valve is mounted on the inlet of the valve back cavity.
Further, the pressure management valve further includes pressure gauge, and the pressure gauge is mounted on the entrance of the valve back cavity Place.
Further, the pressure management valve further includes the 4th ball valve, and the 4th ball valve is mounted on the pressure gauge Inlet.
Further, the conducting pressure of the first decompression pilot valve is 4Bar, the conducting of the second decompression pilot valve Pressure is 8Bar.
Second of technical solution provided by the embodiment of the utility model:
A kind of water supply pipline system includes pressure management valve described in the first technical solution.
Further, the water supply pipline system further includes water pump and water supplying pipe, and the water pump is connected to the valve ante-chamber, The water supplying pipe is connected to the valve back cavity.
Pressure management valve provided by the embodiment of the utility model and the beneficial effect of water supply pipline system are:
The first decompression pilot valve, the second decompression pilot valve and time switch module are provided in pressure management valve, and The conducting pressure of the second decompression pilot valve is greater than the conducting pressure of the first decompression pilot valve.It is high in water demand amount In the case of, pressure management valve can enable the second decompression pilot valve, to increase the pressure of Main valve outlet, guarantee the use of community user Water demand;In the case where water demand amount is low, pressure management valve can enable the first decompression pilot valve, to reduce Main valve outlet Pressure, avoid pipe-line system leak.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the overall structure diagram for the pressure management valve that the utility model first embodiment provides.
Fig. 2 is the concrete composition schematic diagram for the pressure management valve that the utility model first embodiment provides.
Fig. 3 is the working principle diagram of the first decompression pilot valve conducting in Fig. 1.
Fig. 4 is the working principle diagram of the second decompression pilot valve conducting in Fig. 1.
Icon: 1- pressure management valve;2- main valve;3- first depressurizes pilot valve;4- second depressurizes pilot valve;5- throttle valve; 6- time switch module;7- pressure difference switch;8- three-way magnetic valve;9- controls box;10- three-way ball valve;The first ball valve of 11-;12- Two ball valves;13- third ball valve;14- pressure gauge;The 4th ball valve of 15-;16- filter.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be understood that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or The utility model product using when the orientation or positional relationship usually put or those skilled in the art usually understand Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified sets Standby or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model Limitation.
In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply Relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, Or it is integrally connected;It can be mechanical connection, be also possible to be electrically connected;It can be directly connected, intermediary can also be passed through It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition Solve the concrete meaning of above-mentioned term in the present invention.
First embodiment
Fig. 1 and Fig. 2 are please referred to, present embodiments provides a kind of pressure management valve 1, pressure management valve 1 includes main valve 2, the One decompression pilot valve 3, second depressurizes pilot valve 4, time switch module 6 and throttle valve 5.
Main valve 2 has epicoele, valve ante-chamber and valve back cavity, and valve ante-chamber is connected to valve back cavity, and valve ante-chamber is for connecting water pump, valve Back cavity is for connecting water supplying pipe.Epicoele and valve ante-chamber and valve back cavity completely cut off.
The input terminal of first decompression pilot valve 3 is connected to valve ante-chamber, and the output end and valve back cavity of the first decompression pilot valve 3 connect It is logical.The conducting pressure of second decompression pilot valve 4 is greater than the conducting pressure of the first decompression pilot valve 3.Subtract specifically, can be first The conducting pressure for pressing to pilot valve 3 is 4Bar, and the conducting pressure of the second decompression pilot valve 4 is 8Bar.Here conducting pressure refers to Depressurize the pressure of pilot valve output end.That is, water from the first decompression pilot valve 3 flow out after hydraulic pressure value be 4Bar, water is from the Hydraulic pressure value is 8Bar after two decompression pilot valves 4 flow out.
The input terminal of time switch module 6 is connected to valve ante-chamber, the output end of time switch module 6 and the second decompression guide The input terminal of valve 4 is connected to, and the output end of the second decompression pilot valve 4 is connected to valve back cavity, and time switch module 6 is for periodically closing Or conducting.
When time switch module 6 is closed, the water in epicoele flows in valve back cavity from the first decompression pilot valve 3, not from the Two decompression pilot valves 4 flow through, to make the pressure value 4Bar of the water in valve back cavity.
When time switch module 6 is connected, the water in epicoele flows in valve back cavity from the second decompression pilot valve 4, not from the One decompression pilot valve 3 flows through, to make the pressure value 8Bar of the water in valve back cavity.
One end of throttle valve 5 is connected to epicoele, and the other end of throttle valve 5 is connected to valve ante-chamber.
Time switch module 6 includes pressure difference switch 7, three-way magnetic valve 8 and control box 9, the input terminal and valve of pressure difference switch 7 Ante-chamber connection, the output end of pressure difference switch 7 are connected to the input terminal of the second decompression pilot valve 4, the control terminal of pressure difference switch 7 and three The first end A1 of three-way electromagnetic valve 8 is connected to, and the second end B1 of three-way magnetic valve 8 is connected to valve ante-chamber, the third end of three-way magnetic valve 8 C1 is communicated with the atmosphere, and control box 9 is electrically connected with the control terminal of three-way magnetic valve 8, and control box 9 is for controlling three-way magnetic valve 8 The first end A1 that first end A1 was connected to or controlled three-way magnetic valve 8 with second end B1 is connected to third end C1.
Time switch module 6 further includes three-way ball valve 10, the first end A2 of three-way ball valve 10 and the first of three-way magnetic valve 8 A1 connection is held, the second end B2 of three-way ball valve 10 is connected to the control terminal of pressure difference switch 7, the third end C2 and valve of three-way ball valve 10 Ante-chamber connection.
Pressure management valve 1 further includes the first ball valve 11, the second ball valve 12 and third ball valve 13, and the first ball valve 11 is mounted on valve The exit of ante-chamber closes the first ball valve 11, is capable of the connection of stop valve ante-chamber and pipeline.Second ball valve 12 is mounted on throttle valve Between 5 and epicoele, the second ball valve 12 is closed, the connection of epicoele and pipeline can be cut off.Third ball valve 13 is mounted on valve back cavity Inlet closes the second ball valve 12, is capable of the connection of stop valve back cavity and pipeline, simultaneously closes off the first ball valve 11, the second ball valve 12 and third ball valve 13, main valve 2 can be easily loaded and unloaded, main valve 2 is safeguarded.
Pressure management valve 1 further includes pressure gauge 14 and the 4th ball valve 15, and pressure gauge 14 is mounted on the inlet of valve back cavity.The Four ball valves 15 are mounted on the inlet of pressure gauge 14.Pressure gauge 14 is used to detect the hydraulic pressure system of the inlet of valve back cavity.Close the Four ball valves 15 are capable of the connection of cut-out pressure table 14 and pipeline, can easily load and unload pressure gauge 14, or carry out to pressure gauge 14 Maintenance.
Pressure management valve 1 further includes filter 16, and filter 16 is mounted on the exit of valve ante-chamber.Filter 16 was used for The water flowed out from valve ante-chamber is filtered, plays the role of protecting subsequent parts.
Referring to Fig. 3, the hydraulic pressure of the valve back cavity of pressure management valve 1 is the situation of 4Bar: control box 9 controls three-way magnetic valve 8 first end A1 is connected to second end B1, and the first end A2 of three-way ball valve 10 is connected to second end B2.As shown by arrows in figure, Water is flowed out from valve ante-chamber and epicoele, and the water flowed out from valve ante-chamber successively passes through the first ball valve 11, filter 16, three-way magnetic valve 8 Second end B1 and first end A1, three-way ball valve 10 first end A2 and second end B2, finally arrival pressure difference switch 7, make pressure difference Switch 7 is closed.The water flowed out from epicoele successively passes through the second ball valve 12, flow controller, the first decompression pilot valve 3, third ball valve 13, Valve back cavity is finally reached, the hydraulic pressure 4Bar of valve back cavity is made.
Referring to Fig. 4, the hydraulic pressure of the valve back cavity of pressure management valve 1 is the situation of 8Bar: control box 9 controls three-way magnetic valve 8 first end A1 is connected to third end C1, and the first end A2 of three-way ball valve 10 is connected to second end B2.As shown by arrows in figure, Water in 7 top pipeline of pressure difference switch flows through the second end B2 of three-way ball valve 10 and the first end of first end A2, three-way magnetic valve 8 A1 and third end C1, is finally discharged into atmospheric environment, and pressure difference switch 7 is connected.Water is flowed out from valve ante-chamber and epicoele, and water is logical The second decompression pilot valve 4 and third ball valve 13 are crossed, valve back cavity is finally reached, makes the hydraulic pressure 8Bar of valve back cavity.
For the situation of cell water, community user water consumption on daytime is higher, and the pressure of supply water needed is higher, uses water at night To measure lower, the pressure of supply water needed is lower, so, control box 9 can be set and control conducting when daytime of pressure difference switch 7, It is closed when at night.Specifically, can be set within 8 points to 20 points of period, control box 9 is believed to three-way magnetic valve 8 Number, the first end A1 and third end C1 of three-way magnetic valve 8 is connected, pressure difference switch 7 is connected, the second decompression pilot valve 4 is put into Work, makes the hydraulic pressure 8Bar of valve back cavity.Within 20 points to 8 points of period, control box 9 gives 8 signal of three-way magnetic valve, makes three The first end A1 and second end B1 of three-way electromagnetic valve 8 are connected, and close pressure difference switch 7, and the first decompression pilot valve 3 is devoted oneself to work, and make The hydraulic pressure of valve back cavity is 4Bar.
The beneficial effect of pressure management valve 1 provided in this embodiment is:
The first decompression pilot valve 3, second decompression pilot valve 4 and time switch module 6 are provided in pressure management valve 1, And the conducting pressure of the second decompression pilot valve 4 is greater than the conducting pressure of the first decompression pilot valve 3.In water demand In the case that amount is high, pressure management valve 1 can enable the second decompression pilot valve 4, to increase the pressure of the outlet of main valve 2, guarantee small The water demand of area user;In the case where water demand amount is low, pressure management valve 1 can enable the first decompression pilot valve 3, with Reduce the pressure that main valve 2 exports, avoids pipe-line system leak.
Second embodiment
A kind of water supply pipline system is present embodiments provided, water supply pipline system water pump, water supplying pipe include first embodiment The pressure management valve 1 of offer, water pump is connected to valve ante-chamber, and water supplying pipe is connected to valve back cavity.
Water supply pipline system provided in this embodiment can avoid user's water according to water consumption flexible setting pressure of supply water For hydraulic pressure deficiency situation, system leak also can be avoided.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of pressure management valve, which is characterized in that the pressure management valve includes:
Main valve (2), the main valve (2) have epicoele, valve ante-chamber and valve back cavity, and the valve ante-chamber is connected to the valve back cavity, institute It states epicoele and the valve ante-chamber and the valve back cavity completely cuts off;
The input terminal of first decompression pilot valve (3), first decompression pilot valve (3) is connected to the valve ante-chamber, and described first The output end of decompression pilot valve (3) is connected to the valve back cavity;
Second decompression pilot valve (4), the conducting pressure of second decompression pilot valve (4) are greater than the first decompression pilot valve (3) conducting pressure;
The input terminal of time switch module (6), the time switch module (6) is connected to the valve ante-chamber, the time switch The output end of module (6) is connected to the input terminal of second decompression pilot valve (4), and described second depressurizes the defeated of pilot valve (4) Outlet is connected to the valve back cavity, and the time switch module (6) is closed for timing or conducting;
One end of throttle valve (5), the throttle valve (5) is connected to the epicoele, the other end and the valve of the throttle valve (5) Ante-chamber connection.
2. pressure management valve according to claim 1, which is characterized in that the time switch module (6) includes that pressure difference is opened It closes (7), three-way magnetic valve (8) and control box (9), the input terminal of the pressure difference switch (7) to be connected to the valve ante-chamber, the pressure The output end of difference switch (7) is connected to the input terminal of second decompression pilot valve (4), the control terminal of the pressure difference switch (7) It is connected to the first end A1 of the three-way magnetic valve (8), the second end B1 and the valve ante-chamber of the three-way magnetic valve (8) connect Logical, the third end C1 of the three-way magnetic valve (8) is communicated with the atmosphere, the control of control box (9) and the three-way magnetic valve (8) End processed electrical connection, the first end A1 that control box (9) is used to control the three-way magnetic valve (8) be connected to second end B1 or The first end A1 for controlling the three-way magnetic valve (8) is connected to third end C1.
3. pressure management valve according to claim 2, which is characterized in that the time switch module (6) further includes threeway The first end A2 of ball valve (10), the three-way ball valve (10) is connected to the first end A1 of the three-way magnetic valve (8), the threeway The second end B2 of ball valve (10) is connected to the control terminal of the pressure difference switch (7), the third end C2 of the three-way ball valve (10) with The valve ante-chamber connection.
4. pressure management valve according to claim 1, which is characterized in that the pressure management valve further includes filter (16), the filter (16) is mounted on the exit of the valve ante-chamber.
5. pressure management valve according to claim 1, which is characterized in that the pressure management valve further includes the first ball valve (11), the second ball valve (12) and third ball valve (13), first ball valve (11) is mounted on the exit of the valve ante-chamber, described Second ball valve (12) is mounted between the throttle valve (5) and the epicoele, after the third ball valve (13) is mounted on the valve The inlet of chamber.
6. pressure management valve according to claim 1, which is characterized in that the pressure management valve further includes pressure gauge (14), the pressure gauge (14) is mounted on the inlet of the valve back cavity.
7. pressure management valve according to claim 6, which is characterized in that the pressure management valve further includes the 4th ball valve (15), the 4th ball valve (15) is mounted on the inlet of the pressure gauge (14).
8. pressure management valve according to claim 1, which is characterized in that the conducting pressure of first decompression pilot valve (3) Power is 4Bar, and the conducting pressure of second decompression pilot valve (4) is 8Bar.
9. a kind of water supply pipline system, which is characterized in that the water supply pipline system includes that claim 1 to 8 is any described Pressure management valve.
10. water supply pipline system according to claim 9, which is characterized in that the water supply pipline system further includes water pump And water supplying pipe, the water pump are connected to the valve ante-chamber, the water supplying pipe is connected to the valve back cavity.
CN201821013686.8U 2018-06-28 2018-06-28 A kind of pressure management valve and water supply pipline system Active CN208381763U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821013686.8U CN208381763U (en) 2018-06-28 2018-06-28 A kind of pressure management valve and water supply pipline system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821013686.8U CN208381763U (en) 2018-06-28 2018-06-28 A kind of pressure management valve and water supply pipline system

Publications (1)

Publication Number Publication Date
CN208381763U true CN208381763U (en) 2019-01-15

Family

ID=64966036

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821013686.8U Active CN208381763U (en) 2018-06-28 2018-06-28 A kind of pressure management valve and water supply pipline system

Country Status (1)

Country Link
CN (1) CN208381763U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108561755A (en) * 2018-06-28 2018-09-21 苏州艾尔泰流体控制有限公司 A kind of pressure management valve and water supply pipline system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108561755A (en) * 2018-06-28 2018-09-21 苏州艾尔泰流体控制有限公司 A kind of pressure management valve and water supply pipline system

Similar Documents

Publication Publication Date Title
CN208381763U (en) A kind of pressure management valve and water supply pipline system
CN105201044A (en) Novel totally-closed negative-pressure-preventing secondary water supplying system with suppressor
CN108561755A (en) A kind of pressure management valve and water supply pipline system
CN203965584U (en) A kind of entering water electromagnetic valve endurance testing device
CN203183801U (en) Water purifier with intelligent water faucet
CN210766974U (en) Direct pressure water supply equipment capable of preventing cavitation and damage of water pump impeller
CN209167905U (en) Automatic control system for landscape circulating water body
CN207776002U (en) Box type negative-pressure-free supercharging water supply system
CN203548156U (en) Pressure stability self-control device of air compressor
CN201976599U (en) Fish tank capable of automatically changing water
CN210766973U (en) Forced locking anti-backflow device for multifunctional valve of water pump
CN203525688U (en) Liquid level control device for water washing kettle
CN210395524U (en) Pressure-stabilizing water supply device
CN107604974A (en) A kind of non-negative pressure frequency-changing water supply device
CN203535019U (en) Automatic controller for gas pipeline
CN110565734A (en) Direct pressure water supply equipment capable of preventing cavitation and damage of water pump impeller
CN203965142U (en) A kind of scouring electromagnetic valve endurance testing device
CN203131972U (en) Pressure stabilizer
CN220603874U (en) Control circuit for water purification system
CN216767666U (en) Control loop for automatic start and stop of pneumatic hydraulic pump
CN210034515U (en) Diaphragm valve for switching on/off waste water pipeline according to pipeline pressure change and water purification system
CN215295505U (en) Constant-pressure fluid infusion control device
CN110565735A (en) Variable pressure water supply equipment with high-level energy storage and intelligent sensing functions
CN205528070U (en) External bluetooth wireless control's of display screen cupboard following formula purifier
CN220247079U (en) Tap water high-low area pressure-superposed water supply equipment

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant