High Pressure Shut-off Valve
Basic information of High Pressure Shut-off Valve
This valve is closed after the fire pump is started to cut off the domestic water and ensure the firefighting water. When the fire pump is closed, the valve automatically opens to cut off the firefighting water and restore the domestic water supply system. Dof960 series of cases
Features of High Pressure Shut-off Valve
- 2. Sensitive induction, quick control3. Completely Automatic Operation4. Save on plumbing and water costs
Principle of High Pressure Shut-off Valve
The pilot valve is opened when the inlet pressure of the main valve is lower than the set pressure of the pilot valve. The main valve opens and water flows out through the main valve through the outlet. When the firefighting pump starts or frequency conversion pump pressure increases, exceeding the set pressure of the pilot valve, the pressure of the main valve inlet guide valve is increased, the pressure acting on the spring is increased, the pressure is pressed down, the pilot valve is closed. At this point, the inlet pressure of the main valve is continuously supplemented to the control room of the main valve through the ball valve. The downward pressure on the valve disc is greater than the upward thrust to close the main valve.
Installation and Commissioning of High Pressure Shut-off Valve
Piping should be cleaned before using. When the inlet pressure is less than the set pressure, the valve is always open, if the inlet pressure is greater than the set pressure, the valve is closed. For specific use, please consult ZECO Valve Group.
|
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. |
||
Product scope , Standards & Materials of High Pressure Shut-off Valve
Size Range: 2"~24"Pressure Rating: 10bar ~ 25barFace to Face Dimensions: AMSE B16.10, EN558-1Flange End Dimension: AMSE B16.1/16.42, AS4087, EN1092-2Coating: Fusion Bonded Epoxy Coating Inspection and Test: ISO 5208 / EN 12226-2
Zhengfeng Valve Group Co., Ltd. is a professional water valve suppliers. We provide Balancing Valve, high pressure valve china, shut off control valve, pressure shut off valve, high pressure shut off valve, control valveand so on. Want to know more? Please contact us.
在线联系供应商
Other supplier products
 |
Control Valve | ZhengFengbalanced trim control valves are widely used in water supply and drainage control systems in the global building market. As one of the ... |
 |
Electric Gate Valve | Description of Electric Gate Valve: ZECO electric gate valve is a gate valve controlled by an electric actuator. It can operate the gate valve remo... |
 |
Manual Ball Valve | As one of the china ball valve manufacturers, ZECO always adhere to exceed customer expectations,to provide customers with more international stand... |
 |
WCB Valve – WCB Gate Valve | Description As one ofgate valve manufacturers china, ZECO Valve Group is certified to API 600 and API 6D and we offer competitive quotations as we... |
 |
Gate Valve | Gate Valve ZECO is one of the professional gate valve manufacturing companies, specializing in the production of wedge gate valve and through cond... |
Same products
 |
"High-reliability Support ring Y10-4 for power station | 卖方: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "High-reliability Support ring Y10-4 for power station Deyang YOYIK have power plant professional... |
 |
"Wear Resistance dn50 globe valve WJ25-F1.6P for thermal power plant | 卖方: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "Wear Resistance dn50 globe valve WJ25-F1.6P for thermal power plant YOYIK professional productio... |
 |
High-efficiency Superheater outlet plug valve SD61H-P61305V SA-182 F92 for power generation | 卖方: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "High-efficiency Superheater outlet plug valve SD61H-P61305V SA-182 F92 for power generation Deya... |
 |
Automated Sealing gasket for corrugated pipe shut-off valve KHWJ25F3.2P for power station | 卖方: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "Automated Sealing gasket for corrugated pipe shut-off valve KHWJ25F3.2P for power station Is a m... |
 |
Class 1500 LB gate valve | 卖方: Magpie Valve Packing Gasket Co., Ltd | Product Name: Low-EmissionPacking Setfor Class 1500 LB API 6D Gate ValveModel: M600Size: ID 68 mm... |
