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ARO Precision Compressed Air Regulator: Zinc Die-Cast, 3/4 in NPT, 200 cfm - Precision Air Regulators
AROPrecision Air Regulators

ARO Precision Compressed Air Regulator: Zinc Die-Cast, 3/4 in NPT, 200 cfm

The ARO Precision Compressed Air Regulator, model PR4055-300, is a zinc die-cast precision air regulator with a 3/4 in NPT port size. It offers a flow capacity of 200 cfm and an adjustable pressure range of 0 psi to…

SKU 3G-OTH-138403

Also listed as: PR4055300 · PR4055 300

Brand
ARO
Item
Precision Compressed Air Regulator: Zinc Die-Cast, 3/4 in NPT, 200 cfm
Category
Precision Air Regulators
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Technical Specifications

ARO
Manufacturer Part Number
PR4055-300
Type
200 cfm, 0 psi to 30 psi, Knob
NPT
3/4 in

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

Product Description

The ARO Precision Compressed Air Regulator, model PR4055-300, is a zinc die-cast precision air regulator with a 3/4 in NPT port size. It offers a flow capacity of 200 cfm and an adjustable pressure range of 0 psi to 30 psi, controlled via a knob. This unit does not include a filter (.

Frequently Asked Questions

What is the ARO Precision Compressed Air Regulator PR4055-300 used for?

The ARO Precision Compressed Air Regulator PR4055-300 is used to maintain a stable, adjustable output pressure in pneumatic systems. It is ideal for applications requiring precise pressure control, such as instrumentation, assembly tools, and air-operated equipment, where consistent pressure between 0 psi and 30 psi is critical.

What are the specifications of the ARO PR4055-300 regulator?

The ARO PR4055-300 is a zinc die-cast precision air regulator with a 3/4 in NPT port size. It has a flow capacity of 200 cfm and an adjustable pressure range of 0 psi to 30 psi, controlled by a knob. This unit does not include a filter. The manufacturer part number is PR4055-300.

Where to buy the ARO PR4055-300 regulator worldwide?

You can source the ARO PR4055-300 regulator worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply this ARO precision regulator to customers across multiple industries.

How to install the ARO PR4055-300 precision air regulator?

To install the ARO PR4055-300, mount it in-line with your compressed air system using the 3/4 in NPT ports. Ensure the flow direction matches the arrow on the body. Adjust the knob to set the desired output pressure between 0 psi and 30 psi. Always install upstream of equipment requiring regulated pressure.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
ARO Precision Compressed Air Regulator: Zinc Die-Cast, 3/8 in NPT, 14 cfm, 2 psi to 60 psi, Knob (MPN PR4031-200)
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ARO Precision Compressed Air Regulator: Zinc Die-Cast, 3/8 in NPT, 14 cfm, 2 psi to 60 psi, Knob (MPN PR4031-200)
ARO Precision Compressed Air Regulator: Zinc Die-Cast, 3/8 in NPT, 14 cfm, 2 psi to 25 psi, Knob (MPN PR4031-300)
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ARO Precision Compressed Air Regulator: Zinc Die-Cast, 3/8 in NPT, 14 cfm, 2 psi to 25 psi, Knob (MPN PR4031-300)
ARO Compressed Air Regulator: Aluminum, 3/4 in NPT, 290 cfm, 0 psi to 140 psi, Knob, 3000 Series (MPN R37451-100)
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ARO Compressed Air Regulator: Aluminum, 3/4 in NPT, 290 cfm, 0 psi to 140 psi, Knob, 3000 Series (MPN R37451-100)
ARO Compressed Air Regulator: Aluminum, 1 in NPT, 290 cfm, 0 psi to 140 psi, 250 psi Max Op Pressure (MPN R37461-600)
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ARO Compressed Air Regulator: Aluminum, 1 in NPT, 290 cfm, 0 psi to 140 psi, 250 psi Max Op Pressure (MPN R37461-600)

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