Pyro-Chem GV-100 Gas Valve 550594

The Pyro-Chem GV-100 (P/N 550594) is a factory-approved automatic gas shutoff valve for 1-inch pipe, designed for use with Pyro-Chem Kitchen Knight II kitchen fire suppression systems. During a system discharge, the GV-100 automatically shuts off the gas supply to protected cooking appliances — eliminating the fuel source that could cause reignition after the wet chemical agent has knocked down the initial grease fire. This coordinated gas shutoff is a mandatory NFPA 96 requirement for commercial kitchen fire suppression systems protecting gas-fueled cooking equipment.

The Pyro-Chem GV series covers the full range of commercial kitchen gas line sizes. The complete lineup includes the GV-75 (550593) for 3/4-inch pipe, the GV-100 (550594) for 1-inch pipe, the GV-125 (550595) for 1-1/4-inch pipe, the GV-150 (550596) for 1-1/2-inch pipe, and the GV-200 (551049) for 2-inch pipe. All are UL listed and designed specifically for Pyro-Chem kitchen fire suppression system integration — ensuring reliable, coordinated actuation with the Kitchen Knight II control head.

For fire protection contractors installing or servicing Pyro-Chem kitchen suppression systems, the GV-100 is the most commonly specified gas valve for single-appliance or small multi-appliance configurations where 1-inch gas supply lines are the standard. Authorized pyro chem distributors carry the complete GV series, and pyro chem supply channels provide the full pyro chem price list for all gas valve models. The commercial kitchen emergency gas shut off valve and commercial kitchen gas shut off valve categories in the pyro chem fire suppression system parts catalog describe the complete GV series application specifications.

Pyro-Chem GV Series — Full Size Range

Placement Requirements

Per NFPA 96, the gas shutoff valve must be installed in the gas supply line serving the protected cooking equipment, upstream of the appliance connection. The GV-100 must be installed in an accessible location for manual reset after system discharge. Ensure the gas shut off valve for range installation complies with local gas code requirements in addition to NFPA 96. The gas safety shut off valve must be identified with appropriate gas shut off signage per code.

Actuation Connection

Connect the GV-100 to the Pyro-Chem Kitchen Knight II control head per the pyro chem kitchen knight manual wiring diagram. The gas safety valve shut off actuates via an electrical or mechanical signal from the control head when the suppression system discharges. Verify correct actuation signal polarity and function during system commissioning — the fire suppression gas valve must close completely within the required time after system activation.

Semi-Annual Inspection

Test the GV-100 gas auto shut off valve at every semi-annual NFPA 17A and NFPA 96 inspection by triggering a simulated system discharge and confirming the valve closes fully. Verify the manual reset function works correctly after the test. A gas safety shut off valve that fails to close or fails to reset is an immediate red-tag deficiency. Document in the fire suppression system inspection record.

Which GV model do I need for my installation?

Select the GV model based on the pipe size of the gas supply line serving the protected cooking equipment. The gas range shut off valve size must match the pipe size — never install an undersized valve that requires a reducer fitting, as this can restrict gas flow to the appliance during normal operation. Consult the pyro chem kitchen knight manual and local gas code for the correct gas valve selection for your specific installation.

Can the GV-100 be used with ANSUL or Range Guard systems?

The GV series is specifically designed and listed for Pyro-Chem Kitchen Knight II systems. While the gas safety shut off valve mechanism is similar across brands, each manufacturer's gas valve is calibrated for their system's specific actuation signal. Using a Pyro-Chem GV valve on an ANSUL or Range Guard system is not recommended — use the gas valve specified by the system manufacturer for each installation. Authorized pyro chem distributors can confirm compatibility for your specific system configuration.