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Breather Valve with Flame Arrestor

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Company Profile
Zhejiang Zhengchao Petrochemical Machinery Co., Ltd.
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Anfeng Industrial Zone OuBei Town, Wenzhou, Zhejiang Province, China.

Product details


Quick Details

Place of Origin: Zhejiang, China (Mainland)

Brand Name: Zhenchao

Model Number: VRV

Application: Storage tank

Material: CS, Alumium, 304, 316L

Temperature of Media: Low Temperature

Pressure: Low Pressure

Power: Gravity

Media: Gas

Port Size: 2"-12"

Structure: Composite

Explosion proof type: IIB

Standard or Nonstandard: Standard

Supply Ability: 1000 Set/Sets per Month

Packaging & Delivery

Packaging Details: Plywood case

Port: shanghai

Lead Time: 30day

Product Description

Weight-loaded vacuum relief valve

Model ARV is designed to protect your tank from damage created by excessive vacuum.

Technology Parameter

Operating pressure:

Type A: -295pa (-30mm H2O)

Type B: -295pa (-30mm H2O)

Type C: -295pa (-30mm H2O)

Type D: according to user requirement (special pressure rating)

Parts Name



CS / AL / 304 / 316

Pressure Pallet


Vacuum Pallet

304 / 316

Bolt & Nut

CS / 304 / 316


PTFE / Nitrile

Applicable materials: gasoline, kerosene, diesel, aromatics, sulfur, air and other petrochemical materials;

Environment temperature: -40 °C -+60 °C;

Flange standards: ANSI 150LB, PN10, PN16, JIS10K.

Company Information

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.


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