Home> Products> Special Valve> More Valve> Pressure relief valve/pressure maintaining valve
Pressure relief valve/pressure maintaining valve
Pressure relief valve/pressure maintaining valve
Pressure relief valve/pressure maintaining valve
Pressure relief valve/pressure maintaining valve
Pressure relief valve/pressure maintaining valve
Pressure relief valve/pressure maintaining valve

Pressure relief valve/pressure maintaining valve

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Payment Type:T/T
Incoterm:FOB
Transportation:Ocean,Land
Port:chongqing,,
Product Attributes

Product NameValve

Specification And Modelcomplete specifications

Applicable Industrywide application range

Applicable Mediumwater

Valve Functionadjustment

Parts And Accessoriesvalve body

Temperature Environmentoptional

Drive Modemanual

Processing CustomizationYes

Sealing Materialconsult customer service

Packaging & Delivery
Selling Units : Piece/Pieces
Package Type : container
Picture Example :
Product Description

The 500X pressure relief/extreme Pressure Valve consists of a main valve, pilot valve, Needle Valve, Ball Valve, micro filter and pressure gauge to form a hydraulic control take-over system. Using hydraulic automatic operation, it can be used as a Pressure Relief Valve and a pressure maintaining valve. When used as a pressure Relief Valve, the pressure of the water supply line can be maintained below the set safety value and the water supply pressure upstream of the main valve can be maintained. Its working principle: When the pilot valve is adjusted to the pressure relief state, water flows to the outlet through the needle valve, main valve control chamber, ball valve A, pilot valve, and ball valve B. At this time, the main valve is in the open state. When the inlet pressure exceeds the safety value set by the pilot valve, the pressure relief pilot valve will automatically open and release some water through ball valve C to relieve the pressure in the pipeline. When the pressure returns to a safe value, the e-pressure valve automatically closes. When used as a pressure relief valve, each ball valve is normally open. When the pilot valve is adjusted to the pressure-maintaining state, as long as the main valve inlet water pressure reaches the pilot valve setting value, the pilot valve will close. The main control makes the pressure increase and the main valve closes w. When the water supply pressure upstream of the main valve exceeds the pilot valve and is discharged to the outlet, the control room will press the main valve and open it, and the water supply will start to maintain the upstream water pressure. When used as a pressure maintaining valve, ball valve C should be normally closed or replaced with a plug.


Pressure Relief Valve


Characteristics of pressure relief valves among Special Valve
1. Accurate and constant safe and stable pressure. In case of overpressure, the pressure relief valve can be fully opened to relieve the pressure in time.
2. The closing speed of the pressure valve is adjustable to eliminate pressure fluctuations.
3. The diaphragm transmission mechanism minimizes operating lag.
4. It can be installed at any position and can be repaired and inspected without changing the pressure setting value or removing it from the pipeline.
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