Breather Valve With Flame Arrester

Breather Valve with Flame Arrester

Breather Valve with Flame Arrester provides protection to bulk storage tanks and vessels from over and under pressurization. The valves can be mounted on the tank roof flange or a vent pipe from the vapour space. In the closed position the pressure relief pallet and diaphragm assembly are held tightly against a seal to prevent the loss of vapour to the atmosphere. As the internal pressure in the tank increases, due to product filling and vapour accumulation, the pressure in tank increases and in the event that the set pressure of the valve is reached, the diaphragm will open and discharge the gas into the atmosphere. The opening set-point is selectable from a range between +2.0 mbar and +60 mbar. The valve will close when the tank returns to a safe pressure.
The vacuum pallet and diaphragm assembly is also maintained in the closed position. As the internal pressure in the tank reduces, due to emptying, the balance between the tank pressure and the external atmospheric pressure changes, and when the set pressure of the unit is reached, the diaphragm opens to admit air and rebalance the internal pressure. The vacuum set-point is selectable from a range between +2.0 mbar and +60 mbar. The valve will close again when the tank returns to a safe pressure.
Several features are inherent in the valve design to ensure a smooth, positive and effective operation. The body is self-draining and drip rings prevent condensate from settling on seating surfaces. A diaphragm and seal manufactured from Teflon reduce the possibility of ice formation and sticky residues hindering the valve from opening, while the pallet assembly moves freely on guide posts.
The Breather Valve with Flame Arrester is an advanced design for vent to atmosphere applications. Designed manufactured and tested according to the API 2000 code,BS7244, and EN12874 these valves utilize the latest technologies to provide protection against positive or vacuum over pressure and prevent air intake, evaporative losses of product and help to contain odorous and potentially explosive vapours.


Name：Breather Valve with Flame Arrester
Pressure Setting: 20mmW.C to 10000mmW.C
Vacuum Setting: 20mmW.C to 10000mmW.C
Body Material: WCB / CF8 / CF8M / Cast Aluminum
End Connection: FF / RF Flanged End
Size: 1" - 12"

The Unit Will Comprise:
In-line Deflagration Flame Arrestor (flanged)
Breather Valve with Flame Arrester (weight-loaded; discharge to atmosphere)

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)

Breather Valve with Flame Arrester is essential safety equipment used in multiple industries to protect vessels, tanks, and personnel from the risks of overpressure, vacuum, and flame spread. These pressure vacuum vent valves are designed to prevent hazardous pressure or vacuum buildup inside tanks, vessels, or pipelines due to temperature, liquid level fluctuations, or external events such as fires or explosions.

Chongqing Hongar Industries Equipment Co., Ltd. is a wholly-owned subsidiary of Chongqing Jeri Marine Equipment Co., Ltd., specializing in the production of pipeline equipment such as valves, pumps, and fittings.

We supply and service a wide range of detonation and deflagration flame arresters to prevent the onward travel of a flame path and keep facilities safe.
All our Breather Valve with Flame Arrester is:

Compliant with ISO 16852:2008.
ATEX rated.
Manufactured to ISO9001.
Easy to service.
Cost effective.
Supplied with a document pack which includes certified drawings, test certs, welding specs, material test certs;

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