B34R.1.5, 1-1/2 in. Gas Reg 1/4" orf 6.5-13" black spring

Norgas Controls

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.

The B34R is the internal relief version of the B34 series. This model features an adjustable loading ring for controlled boost at higher flows and a 1" internal relief valve.


▪ Interchangeable brass orifice

▪ 78 in2 of diaphragm area

 Spring-loaded internal relief valve assembly

Field interchangeable adjustment spring

Controlled size breather orifice eliminates pulsation and provides normal action at low flows

Wide range of valve body sizes including NPT and flange connections