Pressure Relief Valve
This valve is opened to prevent the pipeline and equipment from being damaged due to overpressure when the pressure in the water supply pipeline exceeds the set pressure of pressure relief. The valve closes automatically when pressure drops to the set value.
Festures of cold water pressure relief valve
Accurate Pressure Control
Fast Opening to Maintain Line Pressure
Slow Closing to Prevents Surges
Completely Automatic Operation
Inlet pressure water enters the lower cavity of the pilot valve diaphragm from the guide valve when the pressure in the pipeline exceeds the set pressure of the guide valve to make its pressure increase to open the guide valve, the main valve control room outwards drain under the effect of the inlet pressure water to open the main valve, it starts to discharge pressure. When the pressure in the pipeline drops to the set pressure, the pressure in the lower cavity of the guide valve diaphragm decreases, causing the guide valve closed. This results in increased water pressure from the guide pipe to the pilot valve, then to the main valve control room. The main valve plate closes and begins to hold pressure.
Pressure Relief Valve Installation and Commissioning
The pressure relief(sustaining) valve supports horizontal and vertical installation but should pay attention to the inlet and outlet direction of valve body water when installing. In general, one fire water supply system can only install one pressure relief valve. Within the operating pressure range of the spring specified in the nameplate, the opening pressure can be adjusted by rotating the adjusting screw to change the spring compression amount. For specific use, please consult ZECO Valve and Gate Group.
Pressure Relief Valve Material and Standard
Size Range: 2"~24"
Pressure Rating: 10bar ~ 25bar
Face to Face Dimensions: AMSE B16.10, EN558-1
Flange End Dimension: AMSE B16.1/16.42, AS4087, EN1092-2
Coating: Fusion Bonded Epoxy Coating
Inspection and Test: ISO 5208 / EN 12226-2
|
Part |
Material |
Standard |
|
Body |
Ductile Iron |
EN 1563/DIN 1693 |
|
Bonnet |
Ductile Iron |
EN 1563/DIN 1693 |
|
Trim |
Stainless Steel 431 |
EN10088-1/ASTM A959 |
|
Seat |
Stainless Steel 431 |
EN10088-1/ASTM A959 |
|
Diaphragm |
EPDM / NBR |
ISO 4633 |
|
Pilot Valve |
Stainless Steel 431 |
EN10088-1/ASTM A959 |
|
For the materials options not listed, consult factory. ZECO manufactures valves in more than 50 different alloys. |
||
As one of pressure relief valve suppliersand pressure relief valve manufacturers, we can offer kinds of related products for sale, if you want to buy pressure relief valve, please contact us.
If you want to know more kinds of check valve, please visit our website.
Send product request
Other supplier products
|
|
Pressure Relief Valve | This valve is opened to prevent the pipeline and equipment from being damaged due to overpressure when the pressure in the water supply pipeline ex... |
 |
Modulating Float Valve | Features of modulating float control valve Stable and reliable work, large flow; Disc fast open and slow closed, no water hammer impact; Goo... |
 |
30 Inch Valve | The 30 inch is mainly used for a small number of performance valves to regulate flow, for filtering, and for butterfly and gate valves to be used a... |
 |
Balancing Valve | ZECO Valve Group is established in 1991, as an experienced china valve manufacturer. We have 5 factories in China, which are located in Shanghai, Y... |
 |
Resilient Gate Valve for Underground | Basic information Thisunderground butterfly valveis used as a two-way closed circuit device. Features 2. Does not affect the traffic, and undergro... |
Same products
 |
Клапан | Seller: RongTengXinNuo(Tianjin) International Trade Co.,Ltd | Клапан |
 |
Class 300 Valve | Seller: GangYe Group Co.,Ltd. | Class 300 valves have a pressure rating of 300 pounds per square inch (psi) or 20.7 bar, allowing... |
 |
Class 3000 Industrial Valve | Seller: GangYe Group Co.,Ltd. | Wafer Body, Full Port Design, Flanged End Class 3000 Ball Valve. A ball valve class 3000pressure-... |
 |
Class 2500 Industrial Valve | Seller: GangYe Group Co.,Ltd. | Class 2500 valves can be used for both on-off and throttling applications. The specific valve typ... |
 |
Class 150 Valve | Seller: GangYe Group Co.,Ltd. | globe valve class 150is a pressure rating designation defined by standards organizations, such as... |
