Smc Pneumatics KQ2E12-04A Bulkhead Tube Fitting 1/2 in

Product Description

The SMC PNEUMATICS KQ2E12-04A is a female bulkhead push-to-connect tube fitting designed for use in pneumatic plumbing and fluid transfer systems. It accepts tubing with a 12 mm outside diameter and connects through a panel or bulkhead surface using a 1/2 inch BSPT female thread. The fitting body is constructed from brass with a polybutylene tube collet, rated for a maximum working pressure of 145 psi. Push-to-connect design allows for fast, tool-free tube insertion and secure retention without additional fittings or thread sealant on the tube side. Licensed pneumatic technicians and industrial plumbers typically install this type of component in compressed air distribution and fluid line routing applications.

This fitting is suited for panel-mount installations where a pneumatic or fluid line must pass through a bulkhead, enclosure wall, or mounting surface. The BSPT thread type is common in systems designed to international standards, making this fitting appropriate for equipment built to British or metric pipe thread specifications. Operating temperature range is 23 degrees F to 140 degrees F, supporting use in both indoor and outdoor industrial environments within that thermal window.

Key Features

• Push-to-connect design allows fast tube insertion without tools on the tube side
• Female bulkhead configuration for panel or wall pass-through installations
• Brass body provides corrosion resistance and durability in pneumatic service
• Rated to 145 psi maximum working pressure
• Accepts 12 mm outside diameter tubing
• 1/2 inch BSPT female thread for international metric-standard system compatibility

Compatibility

Designed as an OEM-style replacement or direct-install push-to-connect bulkhead fitting for pneumatic and fluid systems requiring 12 mm OD tubing with a 1/2 inch BSPT female thread interface.

Installation Notes

Depressurize and isolate the pneumatic or fluid line completely before removing or installing any push-to-connect fitting. Ensure the tubing cut is clean and square before insertion to achieve a proper seal. Apply appropriate thread sealant to the BSPT male threads on the mating component per system requirements. Installation is typically performed by a licensed pneumatic technician, plumber, or qualified industrial maintenance mechanic.