Breathing valve is a kind of air breather which install on the petrochemical fixed storage tank, in order to avoid tank over the pressure or over vacuum making the storage tank destruct, prevent the outside flame enter ,reduce the tank fluid volatile.
According the countryGB50160 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 scientific and smart mould、completely specific-ation 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 HX series breathing valve).Every kind series can mount arrester, also can mount suc-tion、exhaust connection nozzle, also can manufacture any different material according to different medium such as petroleum、chemical、food industry,totally satisfy ev-ery kinds storage system process requirements.
Main technology parameter
A、-295Pa (-30mmH2O) +355Pa (+36mmH2O)
B、-295Pa (-30mmH2O) +980Pa (+100mmH2O)
C、-295Pa (-30mmH2O) +1750Pa (+180mmH2O)
Gasoline 、kerosene、diesel oil、aromatic naphtha、air etc, or other petrochemical material.
The stardand of manufacture and inspection
Manufacture and inspection reference to standard“SY/T0511.1-2010”.
Remark：flange connection adopt toHG/T20592-2010，PN1.0MPa，also can manufacture meet customer’s demand according to HG、JB、ANSI-B16.5、JIS.
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.