Smc Pneumatics KQ2U11-37AS Y-connector Fitting 3/8 in Od

Product Description

The SMC PNEUMATICS KQ2U11-37AS is a push-to-connect Y-connector tube fitting designed for pneumatic and fluid plumbing systems where a single line must split into two branches. Constructed from brass with a polybutylene tube interface, this fitting handles up to 145 psi working pressure and operates across a temperature range of 23 degrees F to 140 degrees F. The 3/8 inch OD tube connection uses a tool-free push-in mechanism for fast, repeatable assembly, while the 1/2 inch NPT thread provides a standard pipe interface for integration into existing manifolds, valves, or equipment ports. Licensed plumbers, pipefitters, and pneumatic system technicians are the primary installers.

This Y-connector is suited for light industrial and commercial pneumatic plumbing applications where compressed air or compatible fluid lines require a three-way branch point. The 3/8 inch OD tube size is common in mid-range pneumatic circuits, and the NPT thread type makes it compatible with standard North American threaded fittings and ported equipment. Typical install scenarios include compressed air distribution panels, fluid transfer manifolds, and inline branching in process equipment. The RoHS-compliant construction makes it suitable for projects with restricted substance requirements.

Key Features

• Push-to-connect tube interface for tool-free tube insertion and removal
• Brass and polybutylene construction for durability and chemical compatibility
• 145 psi maximum working pressure rating
• 1/2 inch NPT thread for standard North American pipe integration
• 3/8 inch OD tube connection for mid-range pneumatic circuit sizing
• RoHS compliant materials

Compatibility

Designed as an OEM-style push-to-connect Y-connector for use with 3/8 inch OD tubing and 1/2 inch NPT threaded ports in pneumatic and compatible fluid plumbing systems.

Installation Notes

Installation should be performed by a licensed plumber, pipefitter, or qualified pneumatic systems technician. Depressurize and isolate the system completely before removing or installing any fitting. Ensure tubing is cut cleanly and squarely, and that the tube OD matches the fitting specification before insertion. NPT threads should be sealed with appropriate thread sealant tape or compound per applicable plumbing codes.