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Description

Material
Housing and cap brass.
Spring stainless steel.
Lift disc brass.
O-ring NBR.
Version
Flat seal asbestos-free.
Note
Opening pressure 0.35 bar (±0,05).
Function principle
See 28038 vent screws with check valve.
Drawing reference
1) flat seal
2) O-ring
3) lift disc
4) vent hole 2x
5) cap
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