We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
ARO 104391-3 Compressed Air Line Lockout Valve, 3/8 in NPT, 250 psi - ARO Compressed Air Line Lockout Valves for FRLs
AROARO Compressed Air Line Lockout Valves for FRLs

ARO 104391-3 Compressed Air Line Lockout Valve, 3/8 in NPT, 250 psi

The ARO Air Line Lockout Valve (SKU 3G-OTH-187826) is a compressed air line lockout valve for FRLs, featuring a 3/8 in NPT inlet and outlet size. It has a maximum operating pressure of 250 psi and is identified by…

SKU 3G-OTH-187826

Also listed as: 1043913 · 104391 3

Brand
ARO
Item
104391-3 Compressed Air Line Lockout Valve, 3/8 in NPT, 250 psi
Part Number
104391-3
Category
ARO Compressed Air Line Lockout Valves for FRLs
Available to Order
Also known as:104391-3ARO
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

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

ARO
Manufacturer Part Number
104391-3
Type
1500
Max Op Pressure
250 psi
NPT Outlet Size
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 Air Line Lockout Valve (SKU 3G-OTH-187826) is a compressed air line lockout valve for FRLs, featuring a 3/8 in NPT inlet and outlet size. It has a maximum operating pressure of 250 psi and is identified by manufacturer part number 104391-3.

Frequently Asked Questions

What is an ARO compressed air line lockout valve used for?

An ARO compressed air line lockout valve isolates pneumatic energy during maintenance or system shutdown. It locks out air flow at the FRL unit, ensuring worker safety per lockout/tagout procedures. 3G Electric supplies this ARO valve for industrial plants, machine shops, and assembly lines worldwide.

What are the specifications of the ARO 104391-3 lockout valve?

The ARO 104391-3 lockout valve has 3/8 in NPT inlet and outlet ports, a maximum operating pressure of 250 psi, and is type 1500. It is designed for compressed air FRL systems. 3G Electric sources this genuine ARO valve for global delivery.

Where to buy an ARO lockout valve for FRLs worldwide?

3G Electric supplies the ARO 104391-3 lockout valve to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote on this genuine ARO compressed air line lockout valve for FRLs.

How to install an ARO air line lockout valve?

Install the ARO lockout valve upstream of your FRL unit using 3/8 in NPT fittings. Ensure the valve is accessible for lockout/tagout. Apply thread sealant to NPT connections and tighten to 250 psi rated torque. 3G Electric provides this ARO valve for global supply.

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 compressed air line lockout valves for frls. 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 →

More from ARO

View all ARO parts →
Type 3000 lockout valve for isolating compressed air in pneumatic systems. Features 3/4 in NPT inlet and outlet ports with a maximum operating pressure of 250 psi. Used to enable safe maintenance of FRL units in industrial manufacturing, assembly lines, and automated machinery
ARO
Type 3000 lockout valve for isolating compressed air in pneumatic systems. Features 3/4 in NPT inlet and outlet ports with a maximum operating pressure of 250 psi. Used to enable safe maintenance of FRL units in industrial manufacturing, assembly lines, and automated machinery
ARO Type 3000 compressed air line lockout valve for FRL assemblies. Features 1 in NPT inlet and outlet, maximum operating pressure 250 psi. Used to isolate pneumatic systems during maintenance or emergency shutdown
ARO
ARO Type 3000 compressed air line lockout valve for FRL assemblies. Features 1 in NPT inlet and outlet, maximum operating pressure 250 psi. Used to isolate pneumatic systems during maintenance or emergency shutdown
This ARO lockout valve is designed for use with compressed air FRL systems to isolate air flow during maintenance or emergencies. It features 1/4 in NPT inlet and outlet ports and a maximum operating pressure of 250 psi. Suitable for lockout/tagout procedures in pneumatic systems
ARO
This ARO lockout valve is designed for use with compressed air FRL systems to isolate air flow during maintenance or emergencies. It features 1/4 in NPT inlet and outlet ports and a maximum operating pressure of 250 psi. Suitable for lockout/tagout procedures in pneumatic systems
This lockout valve isolates compressed air in FRL systems for safe maintenance. It features 1/4 in NPT inlet and outlet ports with a maximum operating pressure of 250 psi. Suitable for pneumatic lockout/tagout procedures in industrial settings
ARO
This lockout valve isolates compressed air in FRL systems for safe maintenance. It features 1/4 in NPT inlet and outlet ports with a maximum operating pressure of 250 psi. Suitable for pneumatic lockout/tagout procedures in industrial settings

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first