Smc Pneumatics KQ2E07-00A Bulkhead Union Fitting 1/4 in Od

Product Description

The SMC PNEUMATICS KQ2E07-00A is a push-to-connect bulkhead union tube fitting designed for routing pneumatic tubing through panels, enclosures, or bulkhead surfaces. It accepts 1/4-inch outside diameter tubing and uses a 9/16-18 UNF thread for secure panel mounting. The body is constructed from brass with a polybutylene collet, rated to a maximum working pressure of 145 psi. Installation requires no tools for tube insertion - the push-to-connect mechanism locks tubing in place on contact. This fitting is a standard component in pneumatic distribution systems and is typically installed by millwrights, pneumatic system technicians, and industrial maintenance professionals.

This fitting is suited for pneumatic plumbing applications where tubing must pass through a panel wall or machine enclosure and maintain a secure, leak-free connection on both sides. The bulkhead configuration allows a single fitting to bridge two zones while the push-to-connect ends on each side speed up assembly and servicing. It is appropriate for use in light industrial, automation, and OEM machine-building environments where compressed air lines are routed through cabinetry or structural panels.

Key Features

• Push-to-connect design on both ends - no tools required for tube insertion or removal
• Bulkhead-style body mounts through panels using the 9/16-18 UNF thread
• Rated to 145 psi maximum working pressure
• Brass body construction with polybutylene collet for durability and chemical compatibility
• Operating temperature range from 23 degrees F to 140 degrees F
• RoHS compliant

Compatibility

Designed as an OEM-style replacement or new-installation fitting for pneumatic systems using 1/4-inch OD tubing with a 9/16-18 UNF bulkhead port.

Installation Notes

Depressurize and lock out the pneumatic system before removing or installing any fittings. Thread the bulkhead nut onto the fitting body and torque by hand until snug, then secure with a wrench - do not overtighten brass threads. Ensure tubing is cut cleanly and squarely before insertion to achieve a positive seal in the push-to-connect collet. Confirm all connections are leak-free with a pressure test before returning the system to service.