• Pressure Vacuum Relief Valve

Pressure Vacuum Relief Valve

  Breathing valve is a kind of air breather which install on the petrochemical fixed storage tank, in order to avoid tank over the pressure of over vacuum making the storage tank destruct, prevent the outside flame enter, reduce the tank fluid volatile.

Product Details

Quick Details

Description

 Breathing valve is a kind of air breather which install on the petrochemical fixed storage tank, in order to avoid tank over the pressure of over vacuum making the storage tank destruct, prevent the outside flame enter, reduce the tank fluid volatile.
According the country (petrochemical design fire proof specification) Gb50160 stipulate:” A,B kind fluid fixed arch-roof tank, should set arrester and breathing valve" , in order to meet the requirement, we develop and exploit all-weather (fire-proof) breathing valve whole series. Withing scientiific and smart mould、completely specification type、compact construction、light weight、huge breath capacity、 small leakage etc features. The product construction have breathing type、single exhaust type、single suction type、reducing type、jacket type (detail information please reference SX series breathing valve). Every kind series can mount arrester, also can mount suction 、 exhaust connection nozzle , also can manufacture any different material according to different medium such as petroleum % chemical、food industry, totally satisfy every kinds storage system process requirements.




Operating Pressure:
A, -295Pa(-30mmH2O)+355Pa(+36mmH2O) 
B, -295Pa(-30mmH20)+980Pa(+100mmH20) 
C, -295Pa(-30mmH2O)+1750Pa(+180mmH2O)
D, Customer specified

Working medium
Gasoline、kerosene、diesel oil、aromatic naphtha x air etc, or other petrochemical material, flame retardant gradation choose "HGJ21-89", choose class IIA or class II B decide by customer.

The stardand of manufacture and inspection
Manufacture and inspection reference to standard "SY7511-87 "GB5908-86".
Remark: flange connection adopt to HG5010-58.PN1.OMPa, also can manufacture meet customer's demand according to HGJ、JB、ANSI-B16.5、JIS.

Company Profile

 Zhejiang Zhenchao Petrochemical Equipment Co., Ltd is a company with professional designing, developmenting and manufacturing prod-uction of petrochemical, medical technology, electricity, gold, textile, food, paper and other industries supporting equipment accessories manufacturer. Varies products with complete inspections and test equipments.Sales network across the country's hundreds of petrochemical equipment companies,thousands users. With the efforts of all staff continued exploration and developing,the company has achieved rapid development, products are sold throughout the country, praised by users. Our company have advanced technology and equipments, strong technical force,can be the manufacturer of other special-purpose products and accessories. The company motto:Only excellent quality products,and perfect after-sales service and reputation can acess the market.To thank new and old customers to the company's long time support and cooperation, but also to open up new market areas, warmly welcome all friends' visiting and business negotiations.

 

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