Stainless Steel Pressure Vacuum Vent

Producdt Description

ZCPE-pilot operated  breather valve with flame arrester is a bit different with breather valve ,first let the seat leakage closer to set point ,second  full flow without overpresure ,to  maintain the tank pressure balance, reduce safety energy-saving products medium volatile, but also the use of principles of vapor heat transfer, protect the respiratory valve parts is not easy to freeze, the breathing valve to ensure the normal work, equipped with fire retardant explosion-proof function.

Fire breathing valve produced by our company has simplified structure, ventilation volume, less leakage, corrosion resistance, insulationetc.. The valve adopts polytetrafluoroethylene material, has the advantages of low temperature resistant, anti frost. The electrostaticprotection device is provided with a respiratory valve, the valve and the tank to keep the same potential moment.

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 °C -+60 °C;

Shell material: HT, AL, A3, 18-8, 304, 304L, 316, 316L.

Flange standards: HG20592-97 PN1.0 (also can be produced according to user specified criteria)

1, with dual nozzle (fire) breathing valve type HXF-SJ/SJZ is the maintenance of tank pressure balance, reduce safety energy-saving products medium volatile. With dual nozzle (fire) breathing valve is the main safety equipment for crude oil, gasoline, kerosene, indispensable light diesel, aromatics and other fixed roof storage tank, can play to prevent evaporation loss and protect the tank overpressure or vacuum in the subject effect from destruction. With dual nozzle (fire) breathing valve is ventilation and fire retardant device installed in the fixed roof tank, can play to reduce the evaporation loss, control the tank pressure balance control and flame interaction. It can carry out the features of automatic adjustment on tank inside and outside pressure. The electrostatic protection device is provided with a respiratory valve, the valve and the tank to keep the same potential moment.

2, according to the national standard of “petroleum chemical enterprise design specification for fire” (GB50160-92) Regulations: “fixed roof tank Chu Cunjia, B liquid, flame arrester should be located and breathing valve”. A lot of breathing valve variety, each have different properties and characteristics, the choice should be to meet the conditions in accordance with its characteristics, whether can achieve optimal running effect, to consider various aspects of some objective factors. With dual nozzle (fire) breathing valve type HXF-SJ/SJZ is one of the most popular products, with double nozzles (fire) breathing valve in the system play a security role. In practical application, its characteristics should be selected according to the type of the actual needs, and based on the maximum discharge capacity to choose their path is the best scheme. With dual nozzle (fire) breathing valve is a new improved type respiratory valve, set the dual role breathing valve and tank fire arrestor.

Note: inhaled and exhaled gases are compensated gas special, which is toxic or gas recovery and utilization.