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ARO Air Line Lockout Valve: 1/2 in NPT, 1/2 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: 1/2 in NPT, 1/2 in NPT Outlet Size, 250 psi Max Op Pressure

The ARO Air Line Lockout Valve (SKU 3G-OTH-187828) is a compressed air line lockout valve for FRLs, featuring a 1/2 in NPT inlet and outlet size. It has a maximum operating pressure of 250 psi and is identified by…

SKU 3G-OTH-187828

Also listed as: 1043924 · 104392 4

Brand
ARO
Item
Air Line Lockout Valve: 1/2 in NPT, 1/2 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
104392-4
Type
2000
Max Op Pressure
250 psi
NPT Outlet Size
1/2 in

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

Product Description

The ARO Air Line Lockout Valve (SKU 3G-OTH-187828) is a compressed air line lockout valve for FRLs, featuring a 1/2 in NPT inlet and outlet size. It has a maximum operating pressure of 250 psi and is identified by manufacturer part number 104392-4.

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 on FRL units. It locks out air flow at the inlet, allowing safe servicing of downstream components. This 1/2 in NPT model with 250 psi max operating pressure is common in industrial plants, assembly lines, and machine shops.

What are the specifications of the ARO 104392-4 lockout valve?

The ARO 104392-4 lockout valve has 1/2 in NPT inlet and outlet sizes, a maximum operating pressure of 250 psi, and is type 2000. It is designed for compressed air FRL systems. The manufacturer part number is 104392-4, and it is supplied by 3G Electric as part of their pneumatic safety portfolio.

Where to buy an ARO lockout valve for worldwide delivery?

3G Electric supplies the ARO 104392-4 lockout valve for worldwide delivery. As a global industrial solutions provider, we handle full logistics and customs clearance to ensure the valve reaches your facility. Contact us for availability and lead time on this 1/2 in NPT, 250 psi pneumatic safety component.

How to install an ARO compressed air line lockout valve?

Install the ARO lockout valve upstream of your FRL unit, ensuring the 1/2 in NPT connections are properly sealed with thread tape. Verify the system is depressurized before installation. After mounting, test the lockout function by cycling the handle to confirm positive air shutoff at 250 psi max operating 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 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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