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89-Type Breather Valve
89-Type Breather Valve
Specification:
Nominal Size:DN50~DN350
Nominal Pressure:
● Positive Pressure:355Pa~1765Pa
● Negative pressure:295Pa
Connection End:Flange, Threaded, BW etc.
End Standard:GB,GOST,DIN,ANSI,API etc.
Feature:Stable breathing, simple construction etc.
Body Material: Cast Steel, Stainless Steel (CF8, CF3, CF8M) etc.
Nominal Size:DN50~DN350
Nominal Pressure:
● Positive Pressure:355Pa~1765Pa
● Negative pressure:295Pa
Connection End:Flange, Threaded, BW etc.
End Standard:GB,GOST,DIN,ANSI,API etc.
Feature:Stable breathing, simple construction etc.
Body Material: Cast Steel, Stainless Steel (CF8, CF3, CF8M) etc.
Nominal Size:DN50~DN350
Nominal Pressure:
● Positive Pressure:355Pa~1765Pa
● Negative pressure:295Pa
Connection End:Flange, Threaded, BW etc.
89-Type Breather Valve is used to install the main safety equipment on fixed roof storage tanks. 89-Type breather valve is a storage tank safe device, which is consisted of flame arrester and breather valve. When put something into the storage tank, inside pressure will be increased a certain value, and the positive pressure disc will be opened automatically to exhale gases. Otherwise, it occurs negative pressure, the negative pressure disc will inhale air.
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88-Type Breather Valve