Breather cap: Stainless steel AISI 304
with silicone-rubber coating (VMQ)
Stainless steel, AISI 301
Sealing washer: DIN 7603 A, soft iron 1.0338
Once the opening pressure given in the table is exceeded, GN 881 breather valves with gasket will vent into a container, preventing
excessive internal container pressure.
In its normal state, the gasket seals the container and prevents dirt and dust from getting inside of it.
The above diagram shows the air outlet as a factor of the opening pressure.
The valves are checked for leak tightness and opening pressure.
Temperature resistant from -22° F to 212° F (-30° C to +100° C).
Available upon request: body made of other materials, other opening pressure (20 mbar), and with dipstick.