B31 Series Regulator

B31 Series Regulator

Max BTU Capacity: 4,600 scfh
Available in 1/2 in. through 1-1/4 in. connection
Field interchangeable orifice
Interchangeable adjustment spring
Controlled breather orifice
Wide range of NPT valve body sizes
27 sq. in. diaphragm area
Spring-loaded internal relief valve assembly

Description

​The B31 is used where inches of water column or pounds delivery is desired such as utility services, and small-to-medium sized furnaces and boilers. The rapid response of the B31 is particularly well suited for applications where sudden on/off loads could cause shock problems.

Additional information

Application

Commercial, Industrial

Regulator Type

Spring Loaded Regulator

Connections

NPT, Flanged

Connection (Inlet)

0.5 NPT, 0.75 NPT, 1 NPT, 1.25 NPT

Connection (size)

0.75 NPT, 1 NPT, 1.25 NPT

Range in PSI

4" w.c. – 2 PSIG

SCFH or BTUs (in 1,000s)

1500-2000, 1000-1500, 750-1000, 500-750, 250-500, >250

Style

IMN, IMR, IMRV, M, N, R

Vent Type

Indoor, Outdoor

Region(s)

New Mexico, Texas