Norgren 12VB00748 Needle Air Flow Control Valve 1/2 in

Product Description

The NORGREN 12VB00748 is a needle-style air flow control valve designed to regulate airflow in pneumatic systems. The needle design allows for precise manual adjustment of flow rate, making it well suited for applications where controlled air delivery is critical. The valve features a brass body construction and connects via tube-to-NPT fitting, with a 1/2-inch tube outside diameter. It weighs 0.57 pounds. Pneumatic system technicians and pipefitters install this type of valve in compressed air lines to meter flow to actuators, cylinders, or downstream pneumatic components.

This valve is used in industrial and commercial pneumatic plumbing applications where tube-to-threaded connections are required. The 1/2-inch tube OD and NPT thread configuration accommodates standard compressed air tubing and pipe fittings commonly found in plant, workshop, and mechanical room environments. It is a single-unit component packaged individually and suited for both new installations and replacement service work on existing pneumatic circuits.

Key Features

• Needle valve design provides fine, repeatable manual flow adjustment
• Brass body offers corrosion resistance in compressed air service
• Tube x NPT connection simplifies integration with standard pneumatic plumbing
• 1/2-inch tube outside diameter for compatibility with common pneumatic tubing sizes
• Compact and lightweight at 0.57 pounds for easy in-line installation

Compatibility

Designed as an OEM-style replacement or new-installation needle flow control valve for pneumatic systems using 1/2-inch OD tubing and NPT-threaded pipe connections.

Installation Notes

Installation should be performed by a qualified pipefitter or pneumatic systems technician. Depressurize and lock out the compressed air supply before beginning any valve work. Apply appropriate thread sealant to NPT connections per standard practice and confirm tube fittings are fully seated and leak-free before returning the system to service. Follow applicable local mechanical codes for compressed air piping.