Non-return gas valves GRS, GRSF
Non-return gas valve to prevent gas creepage or surge, for gas, air and oxygen, DIN-DVGW tested and registered.
GRS: not flame-arresting,
GRSF: with sinter bronze flame arrester, so flame-arresting in the case of use with combustion air,
DN: 15 to 80,
connection: thread or flange,
pe: max. 100 mbar or 5 bar.