Description

Technical Overview

This union tee push-in fitting is a three-way tube-to-tube connector designed to branch airline circuits in pneumatic and vacuum distribution systems . Featuring quick-fit push-in ports across all three connections, the component enables tool-free attachment and removal of pneumatic tubing while maintaining an airtight seal under operating pressure. The fitting distributes incoming air or vacuum supply from a single source line to two separate outlet lines in a T-configuration .

Constructed from thermoplastic with an integrated internal O-ring seal and locking collar, the fitting operates within a working pressure range of 0 to 10 bar and a temperature range of -20°C to +60°C. It accommodates 6mm and 8mm outer diameter pneumatic tubing to facilitate modular fluid routing across automated machinery and clamping fixtures.

Applications

Technicians install this union tee push-in fitting in vacuum clamping tables, CNC machining setups, and automated assembly networks. In vacuum clamping applications, the fitting splits main vacuum lines to supply multiple clamping modules simultaneously from a single vacuum source.

Additionally, engineering teams integrate these fittings into industrial air distribution networks, pneumatic control panels, and prototype laboratory setups. The push-fit mechanism enables quick circuit modifications during system maintenance or machine reconfiguration.

Technical Specifications

Specification	Value
Fitting Type	Tee Union Push Connector
Tube Size (Outer Diameter)	6mm, 8mm
Color	Black and Blue
6mm Overall Length (L)	30–33 mm
6mm Height (H)	~18–20 mm
8mm Overall Length (L)	36–38 mm
8mm Height (H)	~22–24 mm

Maker Store Tips and Tricks

Cut pneumatic tubing perpendicularly with a dedicated tube cutter to ensure a flat end face for proper O-ring engagement .
Fully insert the tubing into the fitting until it seats against the internal shoulder before testing circuit pressure .
Press the release collar evenly against the fitting body when pulling tubing out during circuit disassemblies