B1

L25 - Air Pressure Regulators

Features and Benefits

Diaphragm-type air pressure regulators feature a balanced valve design.
Relieving style automatically relieves excessive pressure in a regulated line.
Regulated line pressure can be reduced with adjusting knob even when line is dead ended.
Non-relieving regulator available.
Bodies and bonnets constructed of die cast aluminum, zinc or stainless steel.
Stainless steel versions meet NACE standard MR-01-75 for corrosion resistance.
Regulated pressures from 5 to 125 psi (0.3 to 8.5 bar) with supply line pressures up to 300 psi (20 bar).
Operating temperature range maximums are 0° to 175°F (–15° to +80°C) with dewpoint less than air temperatures below 35°F (2°C).
Gauges supplied separately.

11438

Air pressure regulator

Dimensions and Weights

Standard	Regulator Number 11438-	A in. (mm)	B in. (mm)	C in. (mm)	D in. (mm)	E in. (mm)
	35, 36, 45, 46	3-11/16 (94)	1-7/16 (37)	5-1/8 (130)	2-3/4 (70)	2 (51)
	37, 47	4-3/8 (111)	1-1/2 (38)	5-7/8 (149)	3-1/2 (89)	2-1/4 (57)
	38, 39, 48, 49	4-1/2 (114)	2-3/8 (60)	6-7/8 (174)	4-1/4 (108)	2-1/4 (57)
	45S	2-3/8 (60)	3/8 (10.0)	2-3/4 (70)	1-1/2 (38)	1-1/2 (38)
	47S	6-3/16 (157)	1-5/8 (41)	7-13/16 (198)	3-1/2 (89)	2-1/4 (57)
Based on the largest version of each type.

Ordering Info

11438-45

Regulator
No.