Pressure regulator/pressure release valve/pressure valve

Product DescriptionPressure reducing valveThis valve is designed and manufactured by our company according to the advanced product of the same type in the United States, France and China. The valve body adopts the streamlined design with less internal head loss and large flow. The transmission mode adopts the hydraulic oper

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Product Description
Pressure reducing valve

This valve is designed and manufactured by our company according to the advanced product of the same type in the United States, France and China. 
The valve body adopts the streamlined design with less internal head loss and large flow. The transmission mode adopts the hydraulic operation, and the
pipeline pressure is used to automatically control the up and down movement of valve disc, control the valve opening, and adjust the downstream pressure
, so as to maintain the downstream pressure above the pilot valve spring set value. When the downstream pressure exceeds the set value, the valve will shut 
down automatically, and guarantee the constant outlet pressure.The product is the ideal product used for domestic water, fire system and water supply system.

2. Structural 
    The valve consists of the main valve, pilot valve, needle valve, ball valve, micro filter and pressure gauge etc. The pilot valve, needle valve, ball valve and 
pressure gauge are connected to the main valve with pipe, so it is collectively called as the pipe control system, as shown in the below picture.
Pressure Regulator/Pressure Release Valve/Pressure Valve
1. Needle valve; 2. Pressure reducing valve; 3. Ball valve
3. Main specification
Pressure Regulator/Pressure Release Valve/Pressure Valve




Our pressure reducing valve drawing is as below
Pressure Regulator/Pressure Release Valve/Pressure Valve

4. Main dimension
Main DimensionDN40506580100125150200250300350400450500600
L2052052502503204154155006056907877878649141067
H1112115128147174214224287336402480510598669754
Control FlowMin0.50.5511.22.98.59.215284578117210336490
Max2137465095170230360800109014021870231628294030
5. Working principle and purpose
    The pressure P1 enters the control room of main valve through pipe and needle valve 23 (see the chart), and establishes the downward pressure P3. The
 outlet pressure P2 can act on the diaphragm of pilot valve 22 through the pipe and conflict with the adjustment spring of pilot valve. When the downstream 
pressure exceeds the pilot valve spring set value, the pilot valve will be closed, the water discharge in the control chamber is 0, and the variable pressure F3 
reaches the maximum value, and the main valve pressure seat valve is closed tightly. When the downstream pressure is less than the pilot valve spring set 
value, the pilot valve will open, and the water discharge in the control chamber will pass downstream through the pilot valve 22 and ball valve 19. The needle
 valve opening is small (1/4-1/2), and the inlet duct is smaller than the outlet duct in the diameter, so the discharge speed is greater than the inlet pressure filling
 speed, thus the pressure F3 in the control room is reduced, and the inlet pressure P1 acts on main valve disc 23 and raises it, so as to open the decompression valve.
 In the steady regulation state, the discharge flow is equal to the filling flow, the main valve opening is unchanged, and the downstream pressure is stable.

6. Installation and adjustment
1. The optimal installation of main valve is horizontal installation with pump cover up. Other installation methods can also realize the use function, and it is 
necessary to thoroughly remove the sundries in the pipe before installation. Pay attention to the flow direction arrow on the main valve body, and follow the 
correct direction. Ensure that no pipe stress is on the valve body and internal parts after installation.
2. Before the installation of main valve, a gate valve and a filter should be installed, and a gate valve should also be installed behind the main valve for repair. 
3. Regularly clean the micro filter 24 on the main valve.
4. Thoroughly flush the pipe before filling water.
5. Install the bypass-valve for important water pipe
6. Pressure regulation method
1) Close the upstream isolation valve, open the downstream isolation valve for decompression, and lower the downstream pressure below 0.1MPa, and close
 the downstream isolation valve;
2) Rotate the pilot valve adjusting screw to the top position;
3) Open the upstream isolation valve slowly;
4) Tighten the pilot valve adjusting screw down, and the outlet pressure will gradually rise, and lock the adjusting screw until reaching the set value;  
5) Under the excessive pressure regulation, adjust from the first step; that is, adjust from low to high pressure.
Pressure Regulator/Pressure Release Valve/Pressure Valve
Installation drawing of 200X  pressure reducing valve
1, 4, 5: resilient seat gate valve;  2. strainer;  3. 200X pressure reducing valve;



 

Pressure Regulator/Pressure Release Valve/Pressure Valve
Pressure Regulator/Pressure Release Valve/Pressure Valve



For more details,please contact us .
Our Process for Pressure reducing valve  production is as below
Pressure Regulator/Pressure Release Valve/Pressure Valve
We Produce our product strictly according to ISO9001 quality control system,and we have WRAS ,DVGW, ,ISO14001 certificate for powder,and WRAS certificate for EPDM gasket.Photos as below are for your reference
Pressure Regulator/Pressure Release Valve/Pressure Valve

our Package is sea worthy polywood box or pallet,photos are as below
Pressure Regulator/Pressure Release Valve/Pressure Valve
We control our quality according to ISO9001 ,photos as below is for your reference
Pressure Regulator/Pressure Release Valve/Pressure Valve


welcome your enquiry ,we will do our best to support.











 

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