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ARO Air Line Lockout Valve: 1/4 in NPT, 1/4 in NPT Outlet Size, 250 psi Max Op Pressure - ARO Compressed Air Line Lockout Valves for FRLs
AROARO Compressed Air Line Lockout Valves for FRLs

ARO Air Line Lockout Valve: 1/4 in NPT, 1/4 in NPT Outlet Size, 250 psi Max Op Pressure

The ARO Air Line Lockout Valve (SKU 4PJU3) is a compressed air line lockout valve for FRLs, with a 1/4 in NPT inlet and outlet size. It has a maximum operating pressure of 250 psi and is identified by manufacturer…

SKU 3G-OTH-187825

Brand
ARO
Item
Air Line Lockout Valve: 1/4 in NPT, 1/4 in NPT Outlet Size, 250 psi Max Op Pressure
Category
ARO Compressed Air Line Lockout Valves for FRLs
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Technical Specifications

ARO
Manufacturer Part Number
104391-2
Type
1500
Max Op Pressure
250 psi
NPT Outlet Size
1/4 in
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ARO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ARO Air Line Lockout Valve (SKU 4PJU3) is a compressed air line lockout valve for FRLs, with a 1/4 in NPT inlet and outlet size. It has a maximum operating pressure of 250 psi and is identified by manufacturer part number 104391-2.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is an ARO Air Line Lockout Valve used for?

An ARO Air Line Lockout Valve isolates compressed air in FRL systems for safe maintenance. It locks out pneumatic energy, protecting personnel during equipment servicing in industrial plants, machining lines, and material handling operations.

What are the specifications of the ARO 104391-2 lockout valve?

The ARO 104391-2 lockout valve has 1/4 in NPT inlet and outlet sizes, a maximum operating pressure of 250 psi, and is type 1500. It is designed for compressed air line lockout on FRL units, ensuring safe pneumatic isolation.

Where to buy ARO lockout valves worldwide?

3G Electric supplies ARO lockout valves like the 104391-2 to customers worldwide. We handle full logistics, customs clearance, and delivery, sourcing genuine industrial equipment across 14 departments including pneumatics and controls.

How to install an ARO compressed air lockout valve?

Install the ARO lockout valve inline with the FRL unit, matching 1/4 in NPT ports. Use thread sealant on male threads, tighten to manufacturer torque specs, and test for leaks at 250 psi max. Always lock out upstream air before installation.

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 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.

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