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The SMC PNEUMATICS KQ2U12-02AS is a push-to-connect tube fitting connector designed for pneumatic and fluid line applications. Built with a brass and polybutylene construction, it accepts a 12mm outside-diameter tube and provides a secure, tool-free connection. The fitting is rated for a maximum working pressure of 145 psi and handles temperatures from 23 degrees F to 140 degrees F. BSPT thread form makes it compatible with British Standard Pipe Taper threaded ports. Licensed tradespeople and pneumatic systems technicians install this type of fitting during assembly or maintenance of compressed-air and light fluid distribution systems.
This connector is suited for use in industrial pneumatic plumbing, light manufacturing equipment, and process automation systems where quick, reliable tube connections are needed. Its push-to-connect design reduces installation time compared to compression or barb-style fittings. The brass body provides durability in environments with moderate pressure and temperature cycling. This fitting is appropriate for both new installations and field repairs where the existing line uses compatible tubing and BSPT-ported components.
Designed as an OEM-style replacement or direct-install connector for pneumatic systems using 12mm OD tubing and BSPT-threaded ports.
Installation is typically performed by a qualified pneumatic systems technician or pipefitter. Before servicing any pneumatic line, depressurize the system completely and verify zero pressure at the work point. Ensure tubing is cut cleanly and squarely before inserting into the push-to-connect fitting to achieve a proper seal. Follow applicable local codes and manufacturer guidelines for pneumatic line installations.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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