ARO Precision Compressed Air Regulator: Zinc Die-Cast, 1/4 in NPT, 14 cfm, 2 psi to 25 psi
The ARO Precision Compressed Air Regulator (MPN PR4021-300) is a zinc die-cast precision air regulator with 1/4 in NPT ports, a flow capacity of 14 cfm, and an adjustable pressure range of 2 psi to 25 psi via a knob…
SKU 3G-OTH-138407
Also listed as: PR4021300 · PR4021 300
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
Need installation or engineering help?
Ask a question
Product Description
The ARO Precision Compressed Air Regulator (MPN PR4021-300) is a zinc die-cast precision air regulator with 1/4 in NPT ports, a flow capacity of 14 cfm, and an adjustable pressure range of 2 psi to 25 psi via a knob. It is manufactured by ARO.
Frequently Asked Questions
What is the ARO Precision Compressed Air Regulator used for?
The ARO Precision Compressed Air Regulator (PR4021-300) is used to precisely control and stabilize downstream air pressure in pneumatic systems. It is ideal for applications requiring fine adjustment, such as instrumentation, assembly tools, and spray equipment, where consistent low-pressure regulation is critical.
What are the specifications of the ARO PR4021-300 regulator?
The ARO PR4021-300 is a zinc die-cast precision air regulator with 1/4 in NPT ports. It has a flow capacity of 14 cfm and an adjustable pressure range of 2 psi to 25 psi via a knob. It is manufactured by ARO and is not a locking type.
Where to buy the ARO PR4021-300 regulator worldwide?
You can source the ARO PR4021-300 regulator through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.
How to install the ARO Precision Compressed Air Regulator?
Install the ARO PR4021-300 by mounting it in-line with 1/4 in NPT piping, ensuring flow direction matches the arrow on the body. Use thread sealant on fittings and avoid overtightening. Adjust pressure by turning the knob clockwise to increase or counterclockwise to decrease within the 2 psi to 25 psi range.
Used in
Common applications for AROARO 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.
