Material:
- Housing and cap brass. Spring stainless steel. Lift disc brass. D1 D O-ring NBR.

Version:
- Flat seal asbestos-free. L1 1 SW L K0461.20014

Note:
- Opening pressure 0.35 bar (+/-0,05). Functional principle:

Drawing reference:
- 1) flat seal 2) O-ring 4) vent hole 2x 5) cap

Dimensions / Technical Data:
- Main material: brass.
- D: 20 mm.
- D1 / thread: G1/4 24,3 7,5 18.
- L: 3) mm.
- L1: lift mm.
- SW: disc mm.