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SPEEDAIRE Air Line Lockout Valve: 1/2 in NPT, 1/2 in NPT Outlet Size, 250 psi Max Op Pressure - Speedaire Compressed Air Line Lockout Valves for FRLs
SPEEDAIRESpeedaire Compressed Air Line Lockout Valves for FRLs

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

The SPEEDAIRE Air Line Lockout Valve (SKU 4ZM28) is a 1/2 in NPT compressed air line lockout valve for FRLs. It features a 1/2 in NPT outlet size, a maximum operating pressure of 250 psi, and standard modular connectors.

SKU 3G-OTH-146599

Brand
SPEEDAIRE
Item
Air Line Lockout Valve: 1/2 in NPT, 1/2 in NPT Outlet Size, 250 psi Max Op Pressure
Category
Speedaire Compressed Air Line Lockout Valves for FRLs
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Technical Specifications

SPEEDAIRE
Manufacturer Part Number
4ZM28
Type
4ZM28
Max Op Pressure
250 psi
NPT Outlet Size
1/2 in
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SPEEDAIRE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SPEEDAIRE Air Line Lockout Valve (SKU 4ZM28) is a 1/2 in NPT compressed air line lockout valve for FRLs. It features a 1/2 in NPT outlet size, a maximum operating pressure of 250 psi, and standard modular connectors.

Frequently Asked Questions

What is the SPEEDAIRE Air Line Lockout Valve used for?

The SPEEDAIRE Air Line Lockout Valve (SKU 4ZM28) is used to isolate compressed air in pneumatic systems for maintenance or emergency shutdown. It is commonly installed upstream of FRL units in industrial plants, assembly lines, and machine shops to ensure safe lockout/tagout procedures.

What are the specifications of the SPEEDAIRE 4ZM28 lockout valve?

The SPEEDAIRE 4ZM28 lockout valve has 1/2 in NPT inlet and outlet ports, a maximum operating pressure of 250 psi, and standard modular connectors for easy integration with FRL components. It is designed for compressed air systems and is manufactured by SPEEDAIRE.

Where to buy the SPEEDAIRE 4ZM28 lockout valve worldwide?

You can source the SPEEDAIRE 4ZM28 lockout valve 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 SPEEDAIRE Air Line Lockout Valve?

Install the SPEEDAIRE lockout valve in the compressed air line upstream of the FRL unit. Use thread sealant on the 1/2 in NPT connections and tighten to manufacturer torque specs. After installation, test for leaks and verify the lockout mechanism engages properly before placing the system into service.

Used in

Common applications for SPEEDAIRE
Manufacturing assembly lines — SPEEDAIRE compressed air filters (e.g., 4ZL49) for particulate removal in pneumatic tool supply
Air compressor maintenance — SPEEDAIRE Furnas to Condor P/S Kit (33MH82) for pressure switch conversion on reciprocating compressors
Pneumatic control systems — SPEEDAIRE check valves (810RC7) to prevent backflow in instrument air lines
Air tool repair — SPEEDAIRE internal gears (45P349) and O-rings (42VA60) for rebuilding impact wrenches and grinders
Heavy-duty industrial air preparation — SPEEDAIRE heavy-duty filters (4ZL12) with metal bowls for high-flow, high-pressure applications up to 250 psi
Air motor servicing — SPEEDAIRE repair kits (22XJ91) for maintaining pneumatic gearmotors in conveyor systems

SPEEDAIRE Products

3G Electric supplies SPEEDAIRE speedaire 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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