325888
Ritag
RITAG wafer check valve SR 20.40-St DN80
PN6-40, metal-to-metal sealing
replaces 9800001731
Face-to-face dimension EN558 series 49, suitable between flanges DIN EN1092-1, PN6-40
Housing sealing strips form B1, EN1092-1
Case: 1.0421
Plate: 1.4301
Spring: 1.4571, pö 20 mbar
Seal type: metallic
Leakage rate D according to EN12266-1