Smc Pneumatics KCH12-04S Push-to-connect Tube Fitting

Product Description

The SMC PNEUMATICS KCH12-04S is a push-to-connect tube fitting connector designed for fast, tool-free plumbing and pneumatic connections in light industrial and commercial applications. Constructed from brass with polybutylene compatibility, this fitting accepts a 12 mm outside diameter tube and threads into a 1/2 inch port. It is rated for a maximum working pressure of 145 psi, making it suitable for compressed air, water, and similar fluid-handling systems. The overall assembled length is approximately 1.64 inches. Licensed plumbers, pipefitters, and pneumatic system technicians are the typical installers of this fitting type.

This connector is used in plumbing manifolds, pneumatic control panels, HVAC controls, and light industrial fluid distribution systems where a secure, leak-resistant push-to-connect interface is required. The 1/2 inch thread allows direct integration into standard ported valves, manifolds, fittings, and equipment ports. It is sold individually, making it practical for targeted replacement or single-point installation on existing systems.

Key Features

• Push-to-connect design enables fast, tool-free tube insertion and removal
• Brass body construction provides corrosion resistance and long service life
• Rated to 145 psi maximum working pressure
• Accepts 12 mm outside diameter tubing
• 1/2 inch thread for compatibility with standard ported equipment
• RoHS compliant construction

Compatibility

Designed as an OEM-style push-to-connect connector fitting for pneumatic and plumbing systems requiring a 12 mm OD tube connection at a 1/2 inch threaded port.

Installation Notes

Installation is performed by licensed plumbers or qualified pneumatic system technicians. Before servicing any fitting, depressurize the line completely and verify pressure is at zero before disconnecting or installing components. Ensure the tube end is cut cleanly and squarely, and that the tube is fully seated before pressurizing the system. Thread engagement should comply with applicable IPC or local plumbing code requirements for the installation environment.