Product Category

Breathing Valve-Qhxf-2000

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.

Operating pressure:

Type A:	+355pa(+36mmH2O) -295pa(-30mmH2O)
Type B:	+980pa(+100mmH2O)-295pa(-30mmH2O)
Type C:	+1950pa(+200mmH2O) -295pa(-30mmH2O)
Type D:	according to user requirement (special pressure rating)
Material：	WCB SS304 SS304L SS316 SS316L
Flange Standard：	HG/T20592-2009 ANSI B16.5 HG/T 20615-2009(Class series) HG/T20592-2009 (PN series) ANSI B16.5 AMSE B16.5

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)

Summarize

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