Payment & Shipping Terms:
|Nominal Diameter:||DN50-DN400||Working Pressure:||300PSI|
|Nominal Pressure:||1.0MPa Or 1.6MPa||Connection:||Flange|
|Color:||Blue, Red, Purple Or Customer Requied||Material:||Cast Iron, Ductile Iron, Stainless Steel, Carbon Steel|
|Standard:||ANSI BS DIN JIS||Application:||General|
fire fighting gate valve,
fire check valve
The valve from the main control valve and pilot valve exterior components. Mainly be installed in buildings bypass the protection of water supply system, water supply protection areas upstream of the main valve pressure, when given the water in the pressure exceeds the set pressure relief valve, pressure relief valve is open, to prevent the pipeline and equipment damage due to overpressure. This valve is mainly used for high-rise building fire testing cycle pressure relief system is spring- loaded safety valve of the upgrading of products.
The product for high-rise, high-rise building design, students used to solve high-rise building live water, fire water system, required flow, high sensitivity, low flow resistance, only back to good sealing effect, requiring the occasion does not produce water hammer. Together with the design of the product management, and long life.
This vavle is suitable on system such as petroleum, chemical industry, foodstuff, medicine, papemaking, water and electricity, shipping, plumbing, the smelting and sources of energy etc the pipe route. Can regard on gas, liquid, semifluid as well as solid powder pipes and power lines and the container of many kinds of corrosiveness and non-corrosiveness adjusts and dams a river the equipment use. Especially extensively being in high layer of building fire protection system reaches other to show in the pipes and power lines system of valve of vavle switch state.
主要尺寸表和重量Main dimensions and weight
Possible failure and troubleshooting
|No relief or relief instability||
Oriented spool stuck
丨 nlet and outlet in the direction of anti
Pressure have not been adjusted
Removed to adjust Been adjusted
Adjust the pilot valve adjustment screw
No holding pressure
Valve body with debris
Damage to the main valve diaphragm
Pressure adjustment is not appropriate
Replacement of the main valve diaphragm Re-adjust the adjustment screw
|Abnormal voice||Valve body with debris Needle is too large to open||Remove impurities Regulating valve|
1. In Relief / holding pressure valve must be installed before the filter.
2. Adjust the screw on the valve when the conductivity should be out, start the pump allowing water to escape from the pressure relief valve, and gradually screwed into the adjustment screw, the pressure gradually increased. To the desired pressure has been set up. Tighten after it is set nuts.
1. The new structure is reasonable, rational use of hydraulic principles of control theory
2. Sensitive, safety relief
3. Slow quick closing valve, water hammer
4. Running smoothly, no noise
5. Life for a long time
Contact Person: Sales Manager