Pyro-Chem GV-150 Gas Valve - 550596

The Pyro-Chem GV-150 (P/N 550596) is a factory-approved automatic gas shutoff valve for 1-1/2-inch pipe, designed for Pyro-Chem Kitchen Knight II kitchen fire suppression systems protecting large commercial kitchen configurations. The 1-1/2-inch pipe size of the GV-150 is typical in high-volume commercial cooking operations — large restaurant chains, cafeteria kitchens, and institutional food service facilities where multiple high-BTU cooking appliances share a larger-capacity gas supply manifold. During system discharge, the GV-150 automatically closes the gas supply valve for range and manifold configurations, eliminating the fuel source and preventing reignition per NFPA 96 requirements.

As the second-largest model in the Pyro-Chem GV series (with the GV-200 for 2-inch pipe being the largest), the GV-150 is specified for the highest-capacity single-zone Kitchen Knight II installations. The gas shut off valve for range applications at this pipe size requires reliable, full-port closure under the higher gas volumes present in 1-1/2-inch supply lines — and the GV-150's factory-listed design ensures that performance consistently. The gas safety shut off valve function of the GV-150 is critical in large commercial kitchens where a system discharge must simultaneously shut off gas to multiple high-BTU appliances.

The complete Pyro-Chem GV series — GV-75 (550593) through GV-200 (551049) — is available through authorized pyro chem distributors with full pyro chem price list pricing. The pyro chem kitchen knight manual provides detailed gas valve installation and testing specifications for all GV series models. For large commercial kitchen fire suppression system projects requiring the commercial kitchen emergency gas shut off valve capability at 1-1/2-inch pipe, the GV-150 is the correct specification per the Pyro-Chem Kitchen Knight II design documentation.

Install the GV-150 in the 1-1/2-inch gas supply line upstream of all protected cooking appliances per NFPA 96 and applicable local gas codes. Mark the gas safety valve shut off location with gas shut off signage. Connect the actuation wiring to the Kitchen Knight II control head per the pyro chem kitchen knight manual. In high-volume commercial kitchen configurations, verify the gas safety shut off valve is accessible for manual reset after system discharge — staff must be able to reset the gas valve after a discharge and system recharge before returning cooking operations to service. Test the GV-150 gas auto shut off valve at every semi-annual NFPA 17A and NFPA 96 inspection and document in the fire suppression system inspection record.

Can the GV-150 handle both natural gas and LP gas service?

Verify natural gas and LP gas compatibility in the pyro chem fire suppression system documentation for the GV-150. Gas valve listings can vary by fuel type — confirm the correct approval for your facility's gas service type with authorized pyro chem supply distributors before installation. Gas cooker shut off valve and gas dryer shut off valve ratings are also gas-type specific and should be verified accordingly.

What if the existing gas line is already 1-1/2 inch but runs to individual 1-inch appliance drops?

Install the GV-150 on the 1-1/2-inch main supply line to protect all appliances simultaneously. This is the preferred NFPA 96 configuration for multi-appliance Kitchen Knight II systems — a single gas shut off valve automatic on the main supply is more reliable than multiple smaller valves on individual appliance drops. Consult the pyro chem kitchen knight manual for the approved gas valve placement strategy for your specific system design.