Achieve greater capacity, higher inlet pressure, more accurate performance, and a faster response for higher volume commercial/industrial applications with these industrial combustion regulators.

These regulators provide an unbeatable combination of capacity, performance, and economy. In most applications, the design allows you to use a smaller regulator than other brands for primary control or monitoring, or both.

Both the Model 121 and Model 122 are highly functional regulators that feature die-cast diaphragm cases and cast iron bodies. This makes them strong and corrosion-resistant. Both models incorporate soft-seat valve material, plus a precision-machined “knife edge” orifice for a positive, tight shutoff.

They can be used in a variety of commercial and industrial applications, including burners, boilers, furnaces, air heaters, and kilns. These regulators also work well for gas engines, where fast response improves overall performance.

Model 121
Body Sizes = 3/4” – 2-1/2” NPT & 2” ANSI 125 Flanged
Max Inlet Pressure = 60 psi
Outlet Pressure Range = 3.5” wc – 10 psi

Model 122
Body Sizes = 1”, 1-1/4”, 1-1/2”, 2” & 2-1/2” NPT
Max Inlet Pressure = 60 psi
Outlet Pressure Range = 1.5” wc – 2 psi