Brass Union Tee

DOT brass compression fittings create hermetic seals between nylon tubing sections in commercial vehicle air brake systems. These specialized fittings meet strict DOT safety standards, ensuring leak-free pneumatic connections for mission-critical braking performance.

DOT Brass Compression Fittings

This tee-shaped brass fitting features male NPT threads on all three ends and a central compression sleeve. The threaded ports integrate with existing pipelines and valves, while the compression hub enables tool-free, leak-proof connections to nylon air brake tubing – ensuring reliable flow diversion in commercial vehicle systems.

High-Load Application Scenarios

1. Multi-Axle Brake Balancing (Heavy Trucks)

• Function: Distributes main air line to 3 drive axle chambers
• Pressure Balance: Compensates for pipeline length variations (≤5% error)
• Installation Standards:
  Align flow guide arrow toward brake chambers
  Limit branch line length variance to ≤1.5m
  Install pressure regulator if exceeding 1.5m

2. Brake-Suspension Synchronization (Buses)

• Function: Integrates brake valve, height valve & pressure sensor
• Performance: Enables automatic center-of-gravity lowering during braking
• Response Time: <0.2 second data linkage

Failure Prevention Protocol

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Brass Compression Fittings Specification

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