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Pacific Seismic Products, Inc.
Manufacturer · Lancaster, CA
About Pacific Seismic Products, Inc.
Manufacturer of seismic-actuated (earthquake-activated) automatic gas shut-off valves, marketed under the California Valve / California Valves brand. Products close automatically during an earthquake to shut off gas flow, preventing fire and explosion hazards. No electrical power required; manual reset required after actuation. UL certified, California-approved, ASCE 25-06 compliant. Product lines: horizontal valves (7 PSI low-pressure and 60 PSI high-pressure) in 3/4"-4" NPT and 2"-8" flanged configurations, vertical bottom-inlet valves, vertical top-inlet valves, 3-way valves, remote actuators, and seismic electrical switches. Sizes from 3/4" to 8"; pressure classes 7 PSI (residential) and 60 PSI (commercial/industrial). 30-year warranty. Made in USA (Lancaster, CA). Founded 1989. Formerly associated with Koso Valves brand.
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