Smc Pneumatics KQ2R08-12A Plug-in Reducer Fitting 145 Psi

Product Description

The SMC PNEUMATICS KQ2R08-12A is a push-to-connect plug-in reducer tube fitting used to join pneumatic tubing lines of two different outside diameters without tools. The fitting accepts an 8 mm outside diameter tube on the reduced end and a 12 mm outside diameter tube on the stem end, making it a straightforward solution for downsizing airflow paths within a pneumatic circuit. Constructed from brass and polybutylene, the KQ2R08-12A is rated to 145 psi maximum working pressure and handles a service temperature range of 23 degrees F to 140 degrees F. It is installed by automation technicians, maintenance mechanics, and pneumatic systems specialists in industrial and light commercial compressed-air applications.

This fitting is suited for compressed-air distribution and fluid-control plumbing systems that require a reliable, leak-resistant tube reduction without threading or soldering. Its push-to-connect mechanism allows fast assembly and, where the fitting design permits, tube removal for reconfiguration during system maintenance or expansion. The KQ2R08-12A is appropriate for use in automated machinery, pneumatic panels, and air-tool supply lines where different tube sizes must be joined inline. The overall length of 36.50 mm keeps the installed footprint compact in tight panel or manifold layouts.

Key Features

• Push-to-connect design allows tool-free tube insertion for fast assembly
• Reduces from 12 mm stem outside diameter down to 8 mm tube outside diameter
• Rated to 145 psi maximum working pressure for standard industrial compressed-air service
• Brass and polybutylene construction provides durability in pneumatic environments
• Operating temperature range of 23 degrees F to 140 degrees F suits most indoor industrial conditions
• RoHS compliant construction

Compatibility

Designed as an OEM-style push-to-connect reducer for pneumatic tubing systems requiring an inline reduction between 8 mm and 12 mm outside diameter tubing in compressed-air or compatible fluid-control circuits rated within the 145 psi working pressure limit.

Installation Notes

Installation is performed by qualified pneumatic or mechanical technicians. Before servicing any pneumatic fitting, depressurize and lock out the compressed-air supply line in accordance with applicable OSHA lockout/tagout procedures. Ensure tube ends are cut square and deburred before insertion to achieve a proper seal. Verify the system operating pressure does not exceed the 145 psi rated maximum of this fitting.