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Aro-Flo Series Air Line Regulator, 1/2 NPT Ports, 0-140 PSI PSI Spring Range, 215 SCFM Flow Rating

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Description & Features

The Ingersoll Rand Aro-Flo Series Air Line Regulator is engineered to provide precise control of air pressure for pneumatic equipment. Featuring 1/2 NPT ports and a pressure range of 0-140 PSI, this regulator ensures consistent airflow with a flow rating of 215 SCFM. Constructed with a durable aluminum body and nitrile diaphragm, it is designed to withstand a maximum inlet pressure of 250 psi, making it suitable for various industrial applications. The non-relieving design is ideal for environments where venting of downstream overpressure is not preferred.

This air line regulator is part of the versatile ARO-Flo Series, offering flexible configurations to meet specific operational requirements. With easy integration into existing air systems, it supports optimal performance and longevity of connected equipment through controlled air distribution.

SKU: R37341-100

Supplier Part Number (MPN): R37341-100

Alternate Part Numbers: C1KN14

Specifications

Adjustment
Standard Knob
Body Material
Aluminum
Connection Type
NPT
Diameter
1.46 in OD
Dimensions
2.78 in W x 5.47 in H
Gauge
Without Gauge
grp Gauge Port
1000 Through 3000 Series: 1/8 NPT, Super-Duty Series: 1/4 NPT
grp Materials
1000 Series: Nitrile + Acetyl Diaphragm, Aluminum Body, Brass + Nitrile Valve, Steel Springs, Nylon + Polycarbonate Gauge Cover, Acetyl Knob, Nitrile O-rings, 1500 Through 3000 Series: Nitrile + Nylon Diaphragm, Aluminum Body, Nylon + Nitrile Valve, Steel
grp Maximum Inlet Pressure
1000 Through 3000 Series: 250 psi, Super-duty Series: 300 psig
Regulator Type
Relieving
Series
2000 Series
Softgoods Material
Acetal/Nitrile

Product Questions & Answers (2)

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Question by: Hank M on May 25, 2025, 9:45 AM
got a 1/2 inch air line in the shop. will this regulator keep up, or is 215 scfm kinda wishful thinking
Answer by: Customer Support on May 27, 2025, 8:53 AM
For higher-demand air tools and general pneumatic equipment, the 215 SCFM flow rating is the capacity reference for this regulator, and it matches up well with the 1/2 NPT port size. It is built to control downstream pressure in the 0 to 140 PSI adjustment range while handling up to 250 psi inlet pressure.
Question by: Donna K on Jan 3, 2026, 2:54 PM
What size are the ports on this regulator?
Answer by: Customer Support on Jan 5, 2026, 6:46 AM
It's got 1/2 NPT ports, which should be pretty standard for hooking up to your air lines.

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