Composite Union Tee

Composite Union Tee fittings are designed for connecting three pneumatic tubes or fluid lines in compact air distribution systems, allowing one supply line to branch into two separate circuits while maintaining organized tubing layouts.

Unlike traditional metal fittings, composite construction combines engineering polymer materials with precision molding technology to provide a lightweight, corrosion-resistant connection solution for applications where weight reduction, chemical resistance, and installation efficiency are important.

Our Composite Union Tee fittings are manufactured for pneumatic automation systems, commercial vehicle air circuits, industrial machinery, and control panels where reliable tube connection and long-term dimensional stability are required.

The push-to-connect design enables fast tube installation without additional tools, reducing assembly time during equipment manufacturing and maintenance operations.

A reliable pneumatic union depends on correct internal clamping, controlled O-ring compression, and smooth internal flow channels.

[ Release Sleeve: POM ] --> Allows quick, damage-free tube release

[ Gripping Teeth: SS 304 ] --> Secures tube wall without biting through

[ O-Ring Seal: Premium NBR ] --> Provides zero-leak positive air sealing

[ Fitting Body: Structural PBT ] --> High mechanical strength & impact resistance

Stainless Steel 304 Lock Claw: Accurately bites into the outer tube wall under system pressure to prevent unexpected tube blow-outs or accidental disconnects.

Spring-Loaded POM Release Collar: Spreads force evenly against the lock claw during manual disconnection, allowing repeated tube insertions without scuffing or damaging the tube surface.

Precision Molded NBR O-Ring: Sits inside a dedicated seal retention groove to provide continuous sealing performance even under moderate vibration and pressure fluctuations.

Factory Pneumatic Automation: Branching main compressed air lines inside valve manifolds, solenoid banks, and pneumatic actuators.

Commercial Vehicle Auxiliary Lines: Used in truck cab air controls, trailer suspension lines, and seat pneumatics where weight reduction directly improves payload efficiency.

Industrial OEM Equipment: Packaging systems, pick-and-place robotics, textile equipment, and automated printing lines requiring neat, compact tubing routing.

To guarantee continuous batch consistency for distributors and high-volume OEM manufacturers, every batch passes strict internal quality controls before dispatch:

Raw Material Inspection: Polymer resins are verified via Melt Flow Index (MFI) and moisture analysis to avoid brittle molding defects.

100% Automated Leak Testing: Every production lot undergoes automated differential pressure leak testing at 1.2 MPa prior to final packaging.

Destructive & Burst Testing: Random sample testing up to 1.5 MPa burst pressure and 1,000+ insertion/pull-out cycles to ensure tooth claw durability.

Full Batch Traceability: Production batch numbers are printed on inner packaging labels for immediate lot tracking.

We provide full ODM/OEM manufacturing support tailored to regional market demands and corporate brand requirements:

Custom Configurations: Custom outer body colors, sleeve button styles, and customized inch/metric hybrid dimensions based on customer CAD drawings (.STEP, .IGES, .DWG).

Private Labeling & Branding: Laser marking on fitting bodies, custom sleeve colors, and branded barcode packaging for distributors.

Logistics & Packaging: Bulk polybags, inner retail boxes, outer master cartons, and palletized export packaging designed for easy inventory identification.

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