Pro-source 4901200013PRO Npt Check Valve 1/2 in Male X Female

Product Description

The PRO-SOURCE 4901200013PRO is an aluminum-body check valve designed to control airflow direction in pneumatic and fluid systems. It features a 1/2-inch male NPT inlet and a 1/2-inch female NPT outlet, allowing one-directional flow while preventing backflow. The body is machined aluminum for corrosion resistance and durability in light industrial and mechanical service environments. Internal sealing is handled by a Buna Nitrile o-ring, which provides reliable performance across a wide range of operating conditions. This valve is a standard component installed by HVAC technicians, plumbers, and pipefitters working on compressed air, pneumatic control, and fluid distribution systems.

This check valve is suited for residential, commercial, and light industrial applications where backflow prevention is required. Typical installations include compressed air lines, pneumatic tool supply systems, and fluid distribution headers. Its NPT threading makes it compatible with standard pipe fittings throughout North American trade installations. The compact form factor, measuring 3.88 inches in length and 1 inch in height and width, allows installation in tight spaces without requiring special adapters or transitions.

Key Features

• Aluminum body construction for lightweight durability and corrosion resistance
• Buna Nitrile o-ring seal for reliable backflow prevention across common service conditions
• 1/2-inch male NPT inlet and 1/2-inch female NPT outlet for direct in-line installation
• Compact profile at 3.88 inches in length, suitable for space-constrained installations
• Standard NPT threading for compatibility with common pipe fittings and system components

Compatibility

Designed as an OEM-style replacement or service component for pneumatic and fluid control systems requiring a 1/2-inch NPT in-line check valve with aluminum body construction.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified HVAC technician. De-pressurize and isolate the line completely before removing or installing any valve. Apply thread sealant or PTFE tape to NPT threads per standard trade practice and applicable IPC or IFGC guidelines. Do not overtighten aluminum-body fittings, as the threads can be damaged by excessive torque.