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Company ProfileZhejiang Zhengchao Petrochemical Machinery Co., Ltd.
By certification [File Integrity]
Place of Origin: Zhejiang, China (Mainland)
Brand Name: Zhenchao
Model Number: PRV-A
Application: Storage tank
Material: CS, Alumium, 304,316L
Temperature of Media: Low Temperature
Pressure: Low Pressure
Port Size: 2"-12"
Explosion proof type: IIA / IIB / IIC
Standard or Nonstandard: Standard
Supply Ability: 1000 Set/Sets per Month
Packaging & Delivery
Packaging Details: Plywood case
Lead Time: 30day
Zhenchao Breather valve with flame arrester
Model PRV-A is designed to vent to atmosphere to protect your tank from damage created by over-pressure or excessive vacuum.As well as providing the primary layer of protection for tanks and process systems, pressure/vacuum valves also minimise emission losses of gases or vapours, thus protecting the environment and providing significant financial savings.
Type A: +355pa (+36mm H2O) -295pa (-30mm H2O)
Type B: +980pa (+100mm H2O) -295pa (-30mm H2O)
Type C: +1950pa (+200mm H2O) -295pa (-30mm H2O)
Type D: according to user requirement (special pressure rating)
CS / AL / 304 / 316
304 / 316
304 / 316
Bolt & Nut
CS / 304 / 316
PTFE / Nitrile
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: ANSI 150LB (also can be produced according to user specified criteria)
Zhenchao, founded in year 1998, is a professional manufacturer serving in the industry of pressure vessels protection. Our high quality products, such as pressure vacuum relief valves, gauge hatches, emergency pressure relief vents, flame arrestors and detonation flame arrestors would always work well to protect the equipment of loading terminals and storage tanks with their features of reliability and safety in the industries of chemical/petrochemical, pharmaceutical, landfill, wastewater, refining, pulp and paper processing, oil production and etc.
As being certified by ISO 9001:2008, Zhenchao could ensure its customers that we would have a high level controlling on all our activities, including valve designing , product engineering, product manufacturing, marketing and so on.
Moreover, a systematic management system has been developed by Zhenchao. With this system covering our product manufacturing, technology improving, product quality controlling, it makes people of Zhenhao work more efficiently and develop safer products for global vessel protection industry.