B57 Series Regulator

B57 Series Regulator


The B57 regulator is ideally suited for use where inches of water column or pounds delivery pressure are desired for uses including utility services, small boilers, and other similar applications. The B57 is ideal for situations where rapid response is required, such as on/off loads, and can be utilized to avoid shock problems. In situations where complete 360 degree rotation of the diaphragm case is desired, the B57 can accommodate any position needed.

Additional information



Regulator Type

Spring Loaded Regulator


NPT, Flanged

Connection (Inlet)

0.5 NPT, 0.75 NPT, 1 NPT, 1.25 NPT

Connection (size)

0.5" NPT, 0.75 NPT, 1 NPT, 1.25 NPT

Range in PSI

4" w.c. – 2.5 PSIG


HP, N, R

Vent Type

Indoor, Outdoor


New Mexico, Texas