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B31 Series

B31R–The B31R (pg. 4) is the internal relief valve (R) version of the B31 Series. The 1” internal relief valve provides exceptional relief capacity.

B34 Series

B34R - The B34R is the internal relief version of the B34 Series. This model features an adjustable loading ring for controlled boost at higher flows, a precision breather opening to ensure proper stability for all conditions, and a 1 internal relief valve.

B34S Series

The B34S is a spring-loaded self-operated regulator available with or without internal relief. It combines the B31 8” diaphragm case with the B34 valve assembly for an economical solution to mid-range commercial and industrial applications. Among its attributes are an adjustable loading ring for...

B42 Series

The B-42 is a spring loaded self operated regulator with internal relief. The B42 features a molded diaphragm, 6:1 lever ratio and a one inch vent. The benefit is a lighter more compact unit that provides the power, capacity and relief performance of larger regulators B42R - The B42R is the...

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