Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
ARO 1500 Series Air Regulator, 3/8 in NPT, 113 cfm, 0-140 psi, Knob, R37231-100 - ARO FRL Air Regulators
AROARO FRL Air Regulators

ARO 1500 Series Air Regulator, 3/8 in NPT, 113 cfm, 0-140 psi, Knob, R37231-100

The ARO Compressed Air Regulator is an aluminum FRL air regulator from the 1500 Series, model R37231-100. It features a 3/8 in NPT connection, a flow capacity of 113 cfm, and an adjustable pressure range of 0 psi to…

SKU 3G-OTH-137173

Also listed as: R37231100 · R37231 100

Brand
ARO
Item
1500 Series Air Regulator, 3/8 in NPT, 113 cfm, 0-140 psi, Knob, R37231-100
Part Number
R37231-100
Category
ARO FRL Air Regulators
Available to Order
Also known as:R37231-100ARO
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

ARO
Manufacturer Part Number
R37231-100
Series
1500
Type
113 cfm, 0 psi to 140 psi, Knob
NPT
3/8 in

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

ARO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ARO Compressed Air Regulator is an aluminum FRL air regulator from the 1500 Series, model R37231-100. It features a 3/8 in NPT connection, a flow capacity of 113 cfm, and an adjustable pressure range of 0 psi to 140 psi with a knob control.

Frequently Asked Questions

What is the ARO 1500 Series compressed air regulator used for?

The ARO 1500 Series compressed air regulator (model R37231-100) controls and stabilizes downstream air pressure in pneumatic systems. It is commonly used in industrial automation, packaging, and material handling applications to protect equipment and ensure consistent operation.

What are the specifications of the ARO R37231-100 regulator?

The ARO R37231-100 is an aluminum compressed air regulator from the 1500 Series. It has a 3/8 in NPT connection, a flow capacity of 113 cfm, and an adjustable pressure range of 0 psi to 140 psi. It uses a knob for pressure adjustment.

Where to buy the ARO 1500 Series air regulator worldwide?

3G Electric supplies the ARO 1500 Series air regulator (R37231-100) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this pneumatic component.

How to install an ARO compressed air regulator?

Install the ARO regulator in-line with your compressed air system, ensuring flow direction matches the arrow on the body. Use thread sealant on the 3/8 in NPT ports. Adjust pressure by turning the knob clockwise to increase or counterclockwise to decrease, then lock the setting.

Used in

Common applications for ARO
Chemical processing — ARO AODD pumps with PTFE diaphragms and 316 SS wetted parts for corrosive fluid transfer
Food and beverage — FDA-compliant ARO AODD pump SD20S-CSS-SMM-B00 with Santoprene diaphragm and Tri-Clamp connections
Water treatment — ARO air control valves and FRL units for pneumatic control in filtration and dosing systems
General manufacturing — ARO air-end repair kits and O-rings for maintaining double diaphragm pumps in assembly lines
Pharmaceutical — ARO sanitary AODD pumps with 316 SS check valves for shear-sensitive and sterile fluid handling
Oil and gas — ATEX-rated ARO FRL units and air control valves for use in hazardous atmospheres
Not sure this is the right part? Photo-identify it→

ARO Products

3G Electric supplies ARO aro frl air regulators. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

Cross-referenced by specification & description
This ARO 1500 Series air regulator features a 1/4 in NPT connection and a flow capacity of 86 cfm. The adjustable pressure range of 0 to 140 psi is controlled via a knob. It is used in pneumatic systems to regulate downstream air pressure for consistent operation of tools and equipment
ARO
This ARO 1500 Series air regulator features a 1/4 in NPT connection and a flow capacity of 86 cfm. The adjustable pressure range of 0 to 140 psi is controlled via a knob. It is used in pneumatic systems to regulate downstream air pressure for consistent operation of tools and equipment
Aluminum compressed air regulator from the ARO 3000 Series with 3/4 in NPT connection. Provides flow capacity of 290 cfm and adjustable pressure range of 0 to 140 psi via knob control. Used in pneumatic systems to regulate downstream pressure for tools, actuators, and valves
ARO
Aluminum compressed air regulator from the ARO 3000 Series with 3/4 in NPT connection. Provides flow capacity of 290 cfm and adjustable pressure range of 0 to 140 psi via knob control. Used in pneumatic systems to regulate downstream pressure for tools, actuators, and valves
Aluminum air regulator from the 2000 Series with 1/2 in NPT ports. Provides adjustable output pressure from 0 to 140 psi via knob control, with a flow capacity of 210 cfm. Used in pneumatic systems to maintain stable downstream pressure for tools and equipment
ARO
Aluminum air regulator from the 2000 Series with 1/2 in NPT ports. Provides adjustable output pressure from 0 to 140 psi via knob control, with a flow capacity of 210 cfm. Used in pneumatic systems to maintain stable downstream pressure for tools and equipment
Aluminum body air regulator with 1 in NPT ports. Adjustable outlet pressure from 0 to 140 psi, maximum inlet pressure 250 psi. Flow capacity 290 cfm. Used in pneumatic systems to control downstream pressure for tools and actuators
ARO
Aluminum body air regulator with 1 in NPT ports. Adjustable outlet pressure from 0 to 140 psi, maximum inlet pressure 250 psi. Flow capacity 290 cfm. Used in pneumatic systems to control downstream pressure for tools and actuators
This ARO compressed air regulator from the 1000 Series features an aluminum body with 1/4 in NPT ports. It provides a flow capacity of 59 cfm and an adjustable output pressure range of 0 to 140 psi, set via a knob. Used in pneumatic systems to control and stabilize downstream air pressure for tools and equipment
ARO
This ARO compressed air regulator from the 1000 Series features an aluminum body with 1/4 in NPT ports. It provides a flow capacity of 59 cfm and an adjustable output pressure range of 0 to 140 psi, set via a knob. Used in pneumatic systems to control and stabilize downstream air pressure for tools and equipment

More from ARO

View all ARO parts →
Aluminum air regulator from the 2000 Series with 3/8 in NPT connection. Flow capacity of 179 cfm and adjustable pressure range of 0 psi to 140 psi via knob control. Used in pneumatic systems to regulate downstream air pressure for tools and actuators
ARO
Aluminum air regulator from the 2000 Series with 3/8 in NPT connection. Flow capacity of 179 cfm and adjustable pressure range of 0 psi to 140 psi via knob control. Used in pneumatic systems to regulate downstream air pressure for tools and actuators
Aluminum FRL air regulator with 1 in NPT ports. Flow capacity of 290 cfm, adjustable output from 0 to 140 psi, and maximum inlet pressure of 250 psi. Used to control and stabilize downstream air pressure in pneumatic systems
ARO
Aluminum FRL air regulator with 1 in NPT ports. Flow capacity of 290 cfm, adjustable output from 0 to 140 psi, and maximum inlet pressure of 250 psi. Used to control and stabilize downstream air pressure in pneumatic systems
Aluminum-bodied compressed air regulator with 3/4 in NPT ports, rated for 300 scfm flow and 250 psi maximum inlet pressure. Adjustable via knob, with a maximum operating pressure of 140 psi. Used in pneumatic systems to reduce and stabilize downstream pressure for tools, automation, and process control
ARO
Aluminum-bodied compressed air regulator with 3/4 in NPT ports, rated for 300 scfm flow and 250 psi maximum inlet pressure. Adjustable via knob, with a maximum operating pressure of 140 psi. Used in pneumatic systems to reduce and stabilize downstream pressure for tools, automation, and process control
ARO 2000 Series air regulator with aluminum body, 1/2 in NPT ports, flow capacity of 210 cfm, and adjustable pressure range of 0 psi to 140 psi via knob control. Used in compressed air systems to regulate downstream pressure for pneumatic tools, automation, and process control
ARO
ARO 2000 Series air regulator with aluminum body, 1/2 in NPT ports, flow capacity of 210 cfm, and adjustable pressure range of 0 psi to 140 psi via knob control. Used in compressed air systems to regulate downstream pressure for pneumatic tools, automation, and process control
Aluminum compressed air regulator with 1 1/2 in NPT ports, 2000 cfm flow capacity, and adjustable pressure range of 10 to 180 psi via knob. Used in pneumatic systems to control and stabilize air pressure for tools and equipment in industrial settings
ARO
Aluminum compressed air regulator with 1 1/2 in NPT ports, 2000 cfm flow capacity, and adjustable pressure range of 10 to 180 psi via knob. Used in pneumatic systems to control and stabilize air pressure for tools and equipment in industrial settings
ARO 1500 Series air regulator with aluminum body, 1/4 in NPT ports, 170 scfm flow capacity, 140 psi operating pressure, and 250 psi maximum pressure. Knob adjustment for precise pressure control in pneumatic systems
ARO
ARO 1500 Series air regulator with aluminum body, 1/4 in NPT ports, 170 scfm flow capacity, 140 psi operating pressure, and 250 psi maximum pressure. Knob adjustment for precise pressure control in pneumatic systems
Aluminum air regulator from the ARO 2000 Series with 3/4 in NPT connection. Provides flow capacity of 210 cfm and adjustable pressure range of 0 psi to 140 psi via knob control. Used to regulate and stabilize downstream air pressure in pneumatic systems
ARO
Aluminum air regulator from the ARO 2000 Series with 3/4 in NPT connection. Provides flow capacity of 210 cfm and adjustable pressure range of 0 psi to 140 psi via knob control. Used to regulate and stabilize downstream air pressure in pneumatic systems
This ARO 1000 Series air regulator controls downstream pressure in pneumatic systems. It features a 1/4 in NPT port, 59 cfm flow capacity, and 0-140 psi pressure range with knob adjustment. The aluminum body provides corrosion resistance. No gauge included
ARO
This ARO 1000 Series air regulator controls downstream pressure in pneumatic systems. It features a 1/4 in NPT port, 59 cfm flow capacity, and 0-140 psi pressure range with knob adjustment. The aluminum body provides corrosion resistance. No gauge included

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first