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Spec Sheet

325 Series pounds to inches regulators are for use on residential, commercial, and industrial applications. The 325 Series features a high leverage valve linkage assembly to deliver positive dead-end lock-up. The regulators are capable of precise regulating control from full flow down to pilot flow.

SPECIFICATIONS Gases Suitable for natural, manufactured, mixed gases, liquefied petroleum gases, and LP gas-air mixtures.

Maximum Individual Load Largest single appliance served by the regulator.
325-3(B)L: 140,000 Btu/hr

Capacity Total load of multiple appliances combined. 325-3(B)L (3/8”, 1/2”): 250,000 Btu/hr

Ambient Temperature Limits All Models:  -40ºF to 205ºF (-40ºC to 96ºC)

Vent Pipe Connections 325-3(B)L: 1/8” NPT

Maximum Inlet Pressure 2 psi (13.8 kPa)

Minimum Inlet Pressure CSA Certified.: 1 psi (7 kPa)

Outlet Pressure Range Certified Spring: 7 - 11” w.c.

Emergency Exposure Limits All Models (Inlet Side Only): 65 psi (450 kPa)

NOTICE These regulators provide no downstream over-pressure protection in the event of failure. At supply pressures in excess of 2 psi, they should not be used. For Technical Support contact a Maxitrol Technical Support Representative. See Maxitrol Safety Warning Instructions, GPR_CSA_2PSI_MI_EN.FR 


Mounting Position The 325 Series is suitable for multi-poise mounting, but when used with a vent limiting device, the regulator must be mounted in a horizontal upright position (see Figure 2). Install the regulator properly with gas flowing as indicated by the arrow on the casting. (See Maxitrol Safety Warning Instructions, GPR_CSA_2PSI_MI_EN.FR).

2 psi inlet pressure line models available in 8" w.c. and 11" w.c. outlet pressures.

1/2" NPT inlet/outlet.

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