Smc Pneumatics KCH08-99 Push-to-connect Tube Plug

Product Description

The SMC PNEUMATICS KCH08-99 is a straight push-to-connect tube plug fitting designed to seal off open pneumatic or fluid lines without the use of tools. Constructed from brass with polybutylene components, it accepts 8mm outside diameter tubing and is rated to a maximum working pressure of 145 psi. The push-to-connect mechanism allows fast, secure tube termination in compressed air systems, water lines, and general fluid conveyance applications. Licensed HVAC technicians, plumbers, and industrial maintenance professionals install this fitting wherever a line needs to be capped cleanly and reliably during service or system modification.

This plug fitting is suited for residential and light commercial pneumatic systems, compressed air distribution networks, and fluid control circuits that use 8mm OD tubing. It is a compact, single-piece solution used when a branch or run must be isolated or terminated without threading or soldering. The overall length of 46.70mm (approximately 1.84 inches) keeps the installed profile low in tight panel or cabinet installations. The fitting meets RoHS standards, making it appropriate for use in environmentally regulated environments.

Key Features

• Push-to-connect design allows tool-free tube insertion and secure termination
• Brass and polybutylene construction for corrosion resistance in pneumatic and fluid service
• Rated to 145 psi maximum working pressure
• Accepts 8mm outside diameter tubing with matching 8mm stem outside diameter
• RoHS compliant for use in regulated applications
• Compact straight profile at approximately 1.84 inches overall length

Compatibility

Designed as an OEM-style replacement or service fitting for pneumatic and fluid control systems using 8mm outside diameter push-to-connect tubing.

Installation Notes

This fitting is typically installed by HVAC technicians, plumbers, or instrumentation technicians working on compressed air or fluid systems. Before installing or removing any tube fitting, depressurize and bleed down the affected line to zero pressure. Ensure tubing is cut cleanly and squarely with no burrs before inserting into the push-to-connect port. Follow applicable codes and the system manufacturer guidelines for maximum allowable working pressure in the installed circuit.