Aro-Flo Series Air Line Regulators, Up To 1770 SCFM at 250/300 PSI

Features	Air line regulators provide controlled, consistent air pressure as required for specific pneumatic equipment connected to the air system. All ARO-Flo regulators are offered with a standard adjustment range of 0 – 140 psig. Alternative spring ranges are offered for easy conversion to suit different requirements. Non-relieving regulators are offered for applications where the venting of downstream overpressure is undesirable.
Gauge Port	1000 through 3000 Series: 1/8 NPT. Super-duty Series: 1/4 NPT.
Materials	1000 Series: Nitrile + acetal diaphragm, Aluminum body, Brass + nitrile valve, Steel springs, Nylon + polycarbonate gauge cover, Acetal knob, Nitrile o-rings. 1500 through 3000 Series: Nitrile + nylon diaphragm, Aluminum body, Nylon + nitrile valve, Steel springs, Nylon + polycarbonate gauge cover, Acetal knob, Nitrile o-rings.
Maximum Inlet Pressure	1000 through 3000 Series: 250 psi. Super-duty Series: 300 psig.
Temperature Range	1000 through 3000 Series: 23-140 °F. Super-duty Series: 32-150°F.

Model Number	Series	Flow Rating (SCFM)	Type	Pressure Range (psi)	Gauge	Dimensions
R37111-100	1000	45	Relieving	0-140 PSI	Yes	1.58W x 3.56H
R37121-100	1000	59	Relieving	0-140 PSI	No	1.58W x 3.56H
R37221-100	1500	86	Relieving	0-140 PSI	No	2.21W x 4.77H
R37331-100	2000	179	Relieving	0-140 PSI	No	2.78W x 5.47H
R37331-600	2000	179	Relieving	0-140 PSI	Yes	2.78W x 5.47H
R37341-100	2000	215	Relieving	0-140 PSI	No	2.78W x 5.47H
R37341-600	2000	215	Relieving	0-140 PSI	Yes	2.78W x 5.47H