3/4″ – 11/4″

The B57 regulator is ideally suited for use where inches of water column or poundsdelivery 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° rotation of the diaphragm case is desired, the B57 can accommodate any position needed.