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 4PJU6) 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
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Product Description
The ARO Air Line Lockout Valve (SKU 4PJU6) 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.
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 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.
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Common applications for AROARO 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.













