Coilhose Pneumatics 4002 Inline Regulator 150 Psi Npt

Product Description

The COILHOSE PNEUMATICS 4002 is an inline pneumatic regulator designed to control and maintain downstream air pressure in compressed-air systems. It accepts a 1/4 inch NPT connection and handles a maximum inlet pressure of 150 psi, making it suitable for a wide range of shop-air and production-line applications. At 1.87 inches wide and weighing 0.1 pounds, the 4002 is a compact, lightweight unit that fits easily into tight plumbing runs without adding significant load to the line. Licensed pneumatic technicians and industrial maintenance professionals install this regulator as part of air distribution assemblies where pressure must be stepped down or stabilized before reaching downstream tools or equipment.

This regulator is suited for use in both light industrial and general shop environments where consistent downstream pressure is critical. Typical installations include air tool supply lines, pneumatic control systems, and point-of-use drops where pressure regulation is required between the main supply header and the end-use device. Its inline design allows it to be threaded directly into NPT-threaded fittings without additional adapters when the port size matches.

Key Features

• 1/4 inch NPT port for direct inline installation in standard compressed-air plumbing
• 150 psi maximum pressure rating suitable for typical shop-air supply systems
• Compact 1.87 inch width fits in confined spaces and tight plumbing runs
• Lightweight at 0.1 pounds, minimizing stress on threaded connections
• Inline configuration allows simple series installation without bypass hardware

Compatibility

Designed as an OEM-style inline regulator for 1/4 inch NPT compressed-air plumbing systems where downstream pressure control is required.

Installation Notes

Installation is performed by qualified pneumatic or industrial maintenance technicians. Depressurize and lock out the air supply line before beginning any work. Apply thread sealant tape to NPT threads and hand-tighten before using a wrench to avoid cross-threading. Verify that the supply pressure does not exceed the 150 psi rated maximum before restoring air to the line.