Tank Breather Valve
Tank Breather Valve
Body material: carbon steel WCB, 304, 316, aluminum alloy
Positive pressure disc material: 304, 316, aluminum alloy
Negative pressure disc material: 304, 316, PTFE
Ambient temperature: – 30 ~ 60℃
Explosion proof grade: bs5501: IIA, IIB, IIC.
Shell material: carbon steel, aluminum alloy, stainless steel: SUS304, SUS304L, SUS316, SUS316L.
Valve disc & seat material: aluminum alloy & stainless steel.
Seal material: polytetrafluoroethylene.
Weatherproof Breather Valve Introduction
For the oil tank breathing valve, the drive mode can be automatic, the connection mode can be flange, the structure can be pipe type, the sealing structure can be PTFE, the pressure range is pn150-300lb, the nominal diameter is dn25-250mm, and the material can be cast iron, WCB, stainless steel, etc
How does Tank Breather Valve Works
The first one is to breathe or inhale when a certain pressure is reached; The other is designed as pure breathing without suction, which can be understood as two check valves with appropriate pressure instead.
The second kind of breathing valve is similar to the one-way check valve. It can only exhale outward, but not inhale inward. When the pressure in the system rises, the gas will be vented outward through the breathing valve to ensure the constant pressure of the system. For tanks storing toxic substances, there is no breathing valve or activated carbon filter and other treatment devices.
Tank Breather Valve Features
Class a positive pressure: 355pa (36mmh2o)
Negative pressure: 295pa (30mmhc)
Class B positive pressure: 980pa (100mmhc)
Negative pressure: 295pa (30mmhc)
Class C positive pressure: 1765pa (180mmh2o)
Negative pressure: 295pa (30mmhc)