B34S Series Regulator
Medium Duty Commercial and Industrial Regulator
Appropriate for many commercial and industrial uses such as gas engines, burners,
furnaces and boilers. The rapid response of the B34 is particularly well-suited for
mid-range applications where quick on/off loads cause shock problems
B34SR – The B34SR 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 controlled boost at high flows, precision breather opening to ensure proper stability under all conditions, and, in the R model, a high capacity internal relief valve. All critical parts are either
steel or aluminum to ensure reliability.The B34SR is the internal relief version of the B34S series. This model features an internal relief valve with a 1" vent.