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ARO Regulator: Zinc Die-Cast, 3/8 in NPT, 10 scfm, 120 psig Max Op Pressure - Precision Air Regulators
AROPrecision Air Regulators

ARO Regulator: Zinc Die-Cast, 3/8 in NPT, 10 scfm, 120 psig Max Op Pressure

The ARO Precision Air Regulator (Zinc Die-Cast, MPN PR4031-100) is a 3/8 in NPT unit with a knob adjustment, rated for 10 scfm flow and 120 psig maximum operating pressure. This OEM-sourced component is part of our…

SKU 3G-OTH-138404

Also listed as: PR4031100 · PR4031 100

Brand
ARO
Item
Regulator: Zinc Die-Cast, 3/8 in NPT, 10 scfm, 120 psig Max Op Pressure
Category
Precision Air Regulators
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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
PR4031-100
Type
10 scfm, 120 psig Max Op Pressure, Knob
NPT
3/8 in

Technical Documents

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

Product Description

The ARO Precision Air Regulator (Zinc Die-Cast, MPN PR4031-100) is a 3/8 in NPT unit with a knob adjustment, rated for 10 scfm flow and 120 psig maximum operating pressure. This OEM-sourced component is part of our broader industrial solutions across 14 departments, with specialist depth in controls and pneumatics.

Frequently Asked Questions

What is the ARO PR4031-100 regulator used for?

The ARO PR4031-100 is a precision air regulator used to control and stabilize downstream pneumatic pressure in industrial systems. It is commonly applied in manufacturing, automation, and process control where consistent air pressure is critical for tool and actuator performance.

What are the specifications of the ARO PR4031-100 regulator?

The ARO PR4031-100 is a zinc die-cast precision air regulator with a 3/8 in NPT port size. It has a maximum operating pressure of 120 psig and a flow capacity of 10 scfm. Adjustment is via a knob. The manufacturer part number is PR4031-100.

Where to buy the ARO PR4031-100 regulator worldwide?

3G Electric supplies the ARO PR4031-100 regulator to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this precision air regulator.

How to install the ARO PR4031-100 air regulator?

Install the ARO PR4031-100 regulator in-line with your compressed air system using the 3/8 in NPT ports. Ensure the arrow on the body matches flow direction. Mount in a clean, dry location. Adjust pressure by turning the knob clockwise to increase, counterclockwise to decrease. Always follow local safety codes.

Used in

Common applications for ARO
Chemical processing — ARO AODD pumps with PTFE diaphragms and check valves for transferring corrosive acids and solvents.
Wastewater treatment — ARO aluminum-housing AODD pumps handling sludge and abrasive slurries in treatment plants.
Packaging automation — ARO PremAir series solenoid valves controlling pneumatic actuators on filling and sealing machines.
Mining operations — ARO 316 stainless steel AODD pumps for dewatering and transferring abrasive mine tailings.
Material handling — ARO MaxAir series foot pedal valves for manual control of conveyor diverters and lift tables.
Maintenance repair — ARO repair kits for field servicing of lower pump assemblies in industrial fluid systems.

ARO Products

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

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Cross-referenced by specification & description
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ARO Regulator: Aluminum, 3/4 in NPT, 300 scfm, 250 psi, 140 psi Max Op Pressure, Knob, 3000 Series (MPN R37451-600)
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ARO Brass Regulator: Brass, 1/4 in, 13 scfm, 125 psig, 250 psig Max Op Pressure, Knob (MPN B27122-020)

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