Product description
Once the opening pressure given in the table is exceeded, breather valves GN 881 with gasket will vent into a container and so protect against excessive inside container pressure. A green colour ring marks the opening pressure of 200 mbar.
In its normal state, the gasket closes the container and so prevents dirt or dust getting inside the container.
The above diagram shows the air outlet as a factor of the opening pressure.
The valves are checked for leak tightness and opening pressure.
Specification
- Valve body
BrassMS
- Breather cap
Stainless steelM AISI 304
- Gasket
Brass
with silicone-rubber coating (VMQ)
- Pressure spring
Stainless steel AISI 301
- Seal DIN 7603 A
Soft iron 1.0338
- Temperature resistant from -30 °C to +200 °C
RoHS
Accessory
Mounting Nuts GN 7430
Sealing Rings DIN 7603 (Copper / Aluminum / Stainless Steel)
On request
Other material
- With other opening pressure 50 mbar (yellow ring)
- With oil dipstick
