Industrial Gas Valves for Combustion Systems
Gas valves sit in the fuel train of a combustion system and perform the safety shutoff and flow control functions that keep a burner's gas supply under command at every stage of operation. Industrial gas valves are built to open and close tightly against line pressure, with proof of closure and fast acting shutoff response required by most combustion safety codes for automatically fired equipment.
Matching a gas valve to the application means confirming line size, pressure class, and the response time required by the connected burner management system. Correctly specified gas valves support safe startup and shutdown sequencing, reduce leak points in the gas train, and hold up under the duty cycle of continuous industrial operation. These valves are suitable for new gas train builds, code driven upgrades, and replacement of worn or obsolete valves.
Shop Relevant carries gas control valves from Siemens and Maxon, spanning manual gas valves for isolation and maintenance shutoff to specialty gas valves built for high pressure, high temperature, or corrosive service. This general purpose gas valve category complements the automated gas valve and gas valve actuator selections elsewhere in the combustion catalog for burners requiring remote or automatic operation. Ships same day.
Frequently Asked Questions
What is the difference between a gas valve and a gas regulator?
A gas valve opens, closes, or throttles gas flow and provides the safety shutoff function in a fuel train, while a gas regulator reduces and holds gas pressure at a steady setpoint. Most combustion systems use both in the same gas train.
Do industrial gas valves need proof of closure?
Many combustion safety codes require proof of closure switches on safety shutoff valves for automatically fired burners above a certain input rating, confirming to the burner management system that the valve has fully seated before allowing an ignition attempt.
Can a manual gas valve be automated later?
Some manual gas valves accept an add on actuator to convert them to automatic operation, though in many cases it is more reliable to replace the valve with one designed from the start for actuation, matched to the required stroke and torque.
How do I know what pressure class gas valve I need?
Pressure class is set by the maximum inlet pressure and the pipe size in the gas train. Check the valve's rated maximum operating pressure against your supply pressure and consult the burner or system manufacturer's gas train specification if one is available.
