Tee Fittings are 3-way pneumatic connectors that allow a single air line to split into two directions or combine two lines into one. They are essential in industrial pneumatic systems, truck and trailer air circuits, automated machinery, and distributed air-line systems.

This category includes:

Male Tee (APB series) – tube + male thread + tube
Branch Tee (APD series) – tube + male branch + tube
Union Tee (APE / PE series) – tube + tube + tube
Reducer Tee (optional) – handles mixed tube sizes

All Tee fittings are designed for fast push-in tube installation and reliable sealing under vibration, pressure, and challenging service environments.

Product Types in This Category

1️⃣ Male Tee (APB Series)

Tube → Male Thread → Tube
Used to branch a male-threaded port off a main line.

Typical tube sizes: 4mm, 6mm, 8mm, 10mm, 12mm
Thread standards: M5–M20 / BSP / NPT

Applications:
Air cylinders, brake system connection blocks, valve islands, manifolds.

2️⃣ Branch Tee (APD Series)

Tube → Tube → Male Thread (Branch)
Forms a “T” structure where the branch is threaded.

Ideal for:

Manifolds
Distribution lines
Installing gauges, valves, sensors

3️⃣ Union Tee (APE / PE Series)

Tube → Tube → Tube
All three ports are push-in, allowing equal tube connections without threading.

Benefits:

Very fast installation
Easy tube redirection
Clean, compact tube layout

4️⃣ Specialty / Reducer Tee (Optional)

For mixed-size tubing or special routing needs.

Example:

8-8-6 Tee
10-8-8 Tee

Key Features

✔ Reliable 3-way air distribution

Splits or combines airflow smoothly with minimal loss.

✔ Push-in connection saves time

Quick installation and tube release without tools.

✔ High vibration resistance

Ideal for on-road vehicle systems such as trailers and tractors.

✔ Multiple sealing options

NBR or FKM (Viton) available depending on application.

✔ Brass or engineering-plastic body options

Supports both heavy-duty and lightweight industrial needs.

Applications

Truck & trailer pneumatic brake accessory lines
Industrial automation control systems
Air compressors and distribution networks
Machinery, robotics, and assembly equipment
Agricultural and construction machinery

FAQ – Tee Fittings

Q1. What is the difference between Male Tee and Union Tee?

Male Tee includes a threaded branch, while Union Tee connects three tubes with no threads.

Q2. Can Tee fittings be used in truck or trailer air systems?

Yes. They’re commonly used to split nylon air lines in air brake or accessory circuits.

Q3. Are reducer-type Tees available?

Yes. Mixed-diameter Tee fittings can be supplied upon request.

Q4. Which tube materials are compatible?

Nylon (PA12), PU, and PE tubing.

Q5. Are Tee fittings reusable?

Yes—tubes can be removed and reinserted multiple times if the collet and O-ring remain in good condition.