Mechanical seismic shutoff gas valves, normally opened, used for natural gas, LPG, propane, butane, town gas, air, etc.
When the valve detects the movements in case of an earthquake it will automatically close the gas supply and it will remain closed until it will be manually reset with a special device.
Flanged connection: DN65, DN80, DN100
Ambient Temperature: -23°C (10°F)/ +51.5°C (124°F)
Working Temperature: ‐10°C (50°F) / + 80°C (176°F)
Maximum test pressure: 2.5 bar ( 29 psi )
Working Pressure: 0.5 bar (7 psi )
Closing time: less than 1 second
Body and cover: aluminum
Diaphragm / Oring / Sealing seat: H-NBR
Internal parts: aluminium, brass, POM – Nylon 6
The earthquake valves are designed and certified according to 2009/142/EC, TS 12884 (similar to ANSI Z21 and ASCE 25-97), EN 13611, EN 549 .