Norgren C/837 Needle Air Flow Control Valve 1/4 Inch Npt

Product Description

The NORGREN C/837 is a needle-style air flow control valve designed to regulate airflow in pneumatic systems. It features an NPT threaded connection with a 1/4-inch inlet size and a brass body construction, making it suitable for compressed air and general pneumatic circuit applications. The in-flow configuration allows controlled metering of air entering a downstream component. Licensed technicians and industrial service professionals install this valve as part of pneumatic control assemblies where precise flow adjustment is required.

This valve is used in pneumatic control circuits across light industrial, commercial HVAC, and automation applications. Its compact form factor and brass construction make it appropriate for installations where corrosion resistance and reliable throttling performance are priorities. The needle valve design allows fine adjustment of airflow rate, which is useful in actuator speed control and similar pneumatic sequencing tasks.

Key Features

• Needle valve design enables fine, precise airflow adjustment
• NPT threaded connection for standard pipe fitting compatibility
• 1/4-inch inlet size suits common pneumatic line sizes
• Brass body provides corrosion resistance in compressed air service
• In-flow configuration meters air entering the downstream circuit

Compatibility

Designed as an OEM-style replacement or service component for pneumatic control systems using 1/4-inch NPT connections in compressed air circuits.

Installation Notes

Installation should be performed by a qualified pneumatic or mechanical technician. Depressurize and lock out the pneumatic system before removing or installing the valve. Apply thread sealant appropriate for compressed air service to NPT threads before assembly. Do not overtighten the needle stem during flow adjustment, as this can damage the seat.