With over 10,000 orders
Earthquake Valves
Pacific Seismic Products (PSP) is the world's leading supplier of earthquake-activated automatic gas shut-off valves and other seismic devices.
PSP was incorporated in 1989 when it acquired the rights to Koso's seismic valves. PSP has continued to develop its gas shut- off valves by adding vertical and specialized types to its already successful horizontal line, giving PSP the most complete line of seismically-activated gas shut-off valves in sizes ranging from 3/4" to 8".
Having a complete hi-tech on-site manufacturing facility in Lancaster, California, PSP is able to engineer, die cast, sand cast, CNC machine, and assemble their own parts for its products.
A state-of-the-art quality control process leads the industry with high-tech, multi-stage testing of every valve manufactured, assuring you absolute reliability from a "Made-in-America" product.
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Original price $0.00 - Original price $229.95Original price $0.00$229.95 - $249.95$229.95 - $249.95Current price $229.95| /
3/4" Earthquake Shut-off Valve
Pacific Seismic ProductsPacific Seismic Products is the world's leading supplier of earthquake-activated automatic gas shut-off valves. Available in sizes 3/4" to 8" with ...
View full detailsOriginal price $0.00 - Original price $229.95Original price $0.00$229.95 - $249.95$229.95 - $249.95Current price $229.95| / -
Original price $229.95 - Original price $249.95Original price$229.95 - $249.95$229.95 - $249.95Current price $229.95| /
1" Earthquake Shut-off Valves
Pacific Seismic ProductsPacific Seismic Products is the world's leading supplier of earthquake-activated automatic gas shut-off valves. Available in sizes 3/4" to 8" with ...
View full detailsOriginal price $229.95 - Original price $249.95Original price$229.95 - $249.95$229.95 - $249.95Current price $229.95| / -
Original price $249.95 - Original price $279.95Original price$249.95 - $279.95$249.95 - $279.95Current price $249.95| /
1-1/4" Earthquake Shut-off Valves
Pacific Seismic ProductsPacific Seismic Products is the world's leading supplier of earthquake-activated automatic gas shut-off valves. Available in sizes 3/4" to 8" with ...
View full detailsOriginal price $249.95 - Original price $279.95Original price$249.95 - $279.95$249.95 - $279.95Current price $249.95| / -
Original price $329.95 - Original price $359.95Original price$329.95 - $359.95$329.95 - $359.95Current price $329.95| /
1-1/2" Earthquake Shut-off Valves
Pacific Seismic ProductsPacific Seismic Products is the world's leading supplier of earthquake-activated automatic gas shut-off valves. Available in sizes 3/4" to 8" with ...
View full detailsOriginal price $329.95 - Original price $359.95Original price$329.95 - $359.95$329.95 - $359.95Current price $329.95| / -
Original price $589.95 - Original price $1,249.95Original price$589.95 - $1,249.95$589.95 - $1,249.95Current price $589.95| /
2" Earthquake Shut-off Valves
Pacific Seismic ProductsPacific Seismic Products is the world's leading supplier of earthquake-activated automatic gas shut-off valves. Available in sizes 3/4" to 8" with ...
View full detailsOriginal price $589.95 - Original price $1,249.95Original price$589.95 - $1,249.95$589.95 - $1,249.95Current price $589.95| / -
Original price $895.95 - Original price $1,499.95Original price$895.95 - $1,499.95$895.95 - $1,499.95Current price $895.95| /
2 1/2" Earthquake Shut-off Valves
Pacific Seismic ProductsPacific Seismic Products is the world's leading supplier of earthquake-activated automatic gas shut-off valves. Available in sizes 3/4" to 8" with ...
View full detailsOriginal price $895.95 - Original price $1,499.95Original price$895.95 - $1,499.95$895.95 - $1,499.95Current price $895.95| / -
Original price $1,399.95 - Original price $1,599.95Original price$1,399.95 - $1,599.95$1,399.95 - $1,599.95Current price $1,399.95| /
3" Earthquake Shut-off Valves
Pacific Seismic ProductsPacific Seismic Products is the world's leading supplier of earthquake-activated automatic gas shut-off valves. Available in sizes 3/4" to 8" with ...
View full detailsOriginal price $1,399.95 - Original price $1,599.95Original price$1,399.95 - $1,599.95$1,399.95 - $1,599.95Current price $1,399.95| / -
Original price $1,699.95 - Original price $1,995.95Original price$1,699.95 - $1,995.95$1,699.95 - $1,995.95Current price $1,699.95| /
4" Earthquake Shut-off Valves
Pacific Seismic ProductsPacific Seismic Products is the world's leading supplier of earthquake-activated automatic gas shut-off valves. Available in sizes 3/4" to 8" with ...
View full detailsOriginal price $1,699.95 - Original price $1,995.95Original price$1,699.95 - $1,995.95$1,699.95 - $1,995.95Current price $1,699.95| / -
Original price $3,699.95 - Original price $3,699.95Original price$3,699.95$3,699.95 - $3,699.95Current price $3,699.95| /
6" Earthquake Shut-off Valves
Pacific Seismic ProductsPacific Seismic Products is the world's leading supplier of earthquake-activated automatic gas shut-off valves. Available in sizes 3/4" to 8" with ...
View full detailsOriginal price $3,699.95 - Original price $3,699.95Original price$3,699.95$3,699.95 - $3,699.95Current price $3,699.95| / -
Original price $9,899.95 - Original price $9,899.95Original price$9,899.95$9,899.95 - $9,899.95Current price $9,899.95| /
8" Earthquake Shut-off Valves
Pacific Seismic ProductsPacific Seismic Products is the world's leading supplier of earthquake-activated automatic gas shut-off valves. Available in sizes 3/4" to 8" with ...
View full detailsOriginal price $9,899.95 - Original price $9,899.95Original price$9,899.95$9,899.95 - $9,899.95Current price $9,899.95| /