Seismic Safety Products manufactures and sales the Northridge earthquake actuated natural gas and propane shutoff valve that prevents fires and explosions . The Northridge 20valve is a simple patented design with only one moving internal part. A stainless steel ball rests on a pedestal inside the valve when it is in the ON position allowing gas to flow.
The Northridge earthquake on January 1 19was 6. A-FFIX LLC company head Bruce Schoonmaker explains shut-off valves and their. The Northridge 20Automatic Shut-Off Valve uses a simple but effective .
Jan 20- no experience, but one set of instructions mention a detent behind the faceplate. Performance of Seismic Gas Shutoff Valves and the Occurrence of Gas-Related Fires and Gas Leaks During the 19Northridge Earthquake, with an Update on . A stainless steel ball rests on a pedestal inside the valve when it is in . NW Seismic installs gas shut off valves – Duration: 1:27. Valve Design – The Northridge 20valve is a simple patented design with only one moving internal part. A stainless steel ball rests on a pedestal inside the .
