All Weather Breather Valve is applicable in cans of oil and liquid, which exclude the positive pressure and negative pressure gas, and so that the liquid could be flow easily.If without this valve, the tank will easy to deformation and vibration. All weather breather valve is an essential equipment for storage tanks.

Specification:

Nominal Size: DN50~DN350

Operating Pressure:

? Positive Pressure:355Pa~1765Pa

? Negative pressure:295Pa

Connection End: Flange / Threaded

End Standard: GB, DIN, GOST, API, ANSI etc.

Body Material:Alloy, Cast Steel, Stainless Steel etc.