company size
Zhejiang Zhen chao Petrochemical Equipment Co Ltd.was founded in 2006, located in Oubei,Yongjia, Zhejiang Province.A company specializing in the production of storage tank protection equipment, at present the company mainly deals with:flamearresters, breathing valves, emergency pressure relief manholes, hydraulic safety valves, oil measuring holes and other storage tank accessories.
Product Description
| Product model |
ZCHX-VIIZ |
| Pressure Rating |
Normal pressure |
| medium temperature |
Normal temperature, medium temperature, high temperature |
| Use To |
Chemical tank and oil tank |
| Connect |
Flange end |
| country of origin |
zhejiang china |
| Sale Type |
Factory Direct Sale |
| Warranty Period |
18 Month |
Pressure Vacuum Relief valve
A ventilation and fire prevention device with a single exhaust valve installed on a fixed top tank can reduce oil evaporation loss, control tank pressure balance, and control flames. It can automatically adjust the pressure inside and outside the storage tank. The valve is equipped with an electrostatic protection device to maintain the same potential as the tank at all times. The single call valve with a connecting pipe (flame retardant) is installed at the top of the storage tank and is a device for discharging positive pressure gas inside the tank, so that the output of liquid inside the tank is not obstructed. When external liquid is input into the tank, a large amount of gas is called positive pressure. When stopping work, the automatic closing of the single call valve with a connecting pipe (flame retardant) will not leak the liquid and gas inside the tank, ensuring the quality of the liquid inside the tank. The single call valve with a connecting pipe (flame retardant) can not only maintain the pressure balance of the storage tank, ensure that the tank is not damaged in case of overpressure, but also reduce the loss of medium inside the tank. The seat of the single call valve with a connecting pipe (flame retardant) is a gravity type structure. Its characteristic is the soft contact with air cushion between the valve disc and the valve seat, which has good air tightness, is not easy to frost and freeze, and is suitable for use in cold regions. According to the national standard "Fire Protection Design Code for Petrochemical Enterprises" (GB50160-92), "Fixed top tanks storing Class A and Class B liquids should be equipped with flame arresters and breathing valves. The new type of single call valve with connecting pipe (flame retardant) is a safety device on fixed top storage tanks for crude oil, gasoline, light diesel, aromatic hydrocarbons, etc. It is used to prevent evaporation loss and protect the storage tank from damage when subjected to overpressure.
Product Feature:
The single call valve disc with a connecting pipe (flame retardant) is made of PTFE material, which is resistant to low temperatures and has good anti freezing performance; The flame retardant plate is made of stainless steel material, which has excellent flame retardancy. The shell is made of stainless steel, cast steel, and aluminum alloy, with a compact structure, strong fire resistance, large ventilation, small leakage, corrosion resistance, low temperature resistance, frost resistance, easy maintenance, and convenience.
Note:
under normal circumstances, (fire) breathing valve operating pressure to B shall prevail;
Applicable materials:
gasoline, kerosene, diesel, aromatics, sulfur, air and other petrochemical materials;
Environment temperature:
-40 ºC -+60 ºC;
Shell material:
WCB,304,316L.
Flange standards:
HG20592-2009 PN1.0 (also can be produced according to user specified criteria)
PRODUCTION PROCESS
TESTING
Delivery conditions and packing
| Delivery Time |
15-30days |
| package |
Standard Exporting Plywood Case |
| Shipping Port |
Shanghai/Ningbo China |
| Shipping Terms |
EXW, FOB, CFR, CIF |
| Payment Terms |
30% prepayment, 70% balance paid before shipping |
CERTIFICATES
FAQ:
1.Can I get samples from your factory?
Yes, Samples can be provided.
2. What is your MOQ?
Our MOQ is usually 5 CTNS.
3. What is your delievery time?
Our delievery is about 15-30days.
4. What is your payment terms?
We accept T/T, 100% L/C, or West Union and so on.
5. Can we print our logo on your products?
yes, we offer OEM/ODM service, we support the customized logo, size, package,etc.
5. Why choose us?
we are a manufacturer, we have manufactured valve for over 20 years .comparing with many factories, our prices are more competitive.
Secondly, We 100% test working pressure for ALL our products.
Finally, After- Services will be highly satisfied. Any problems and feedbacks will be responded efficiently.
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