By purpose:

1. The pipe fittings used to connect the pipes are: flanges, unions, pipe clamps, clamps, ferrules, hose clamps and other cold drawn welded tees

2. Fittings that change the direction of the pipe: elbows, bends

3. Fittings for changing the diameter of the pipe: reducer (reducing pipe), reducing elbow, branch pipe stand, reinforcing pipe

4. Increase the pipe fittings of the pipeline branch: tee, cross

5. Pipe fittings used for pipeline sealing: gaskets, sealing strip, twine, blind flange , plugs, blind plates, caps, welding plugs

6. Pipe fittings used for pipeline fixing: snap ring, towing hook, lifting ring, bracket, pipe clamp, etc.

By connection:

1. Welded pipe fittings

2. Threaded pipe fittings

3. Press fittings

4. Clamp fittings

5. Socket weld pipe fittings

6. Bonding pipe fittings

7. Hot melt pipe fittings

8. Curved double melting pipe fittings

9. Rubber ring connection type pipe fittings

By material

1. Cast steel pipe fittings

2. Cast iron pipe fittings

3. Stainless steel pipe fittings

4. Plastic pipe fittings

5. PVC pipe fittings

6. Rubber pipe fittings

7. Graphite pipe fittings

8. Forged steel pipe fittings

9. PPR pipe fittings

10. Alloy pipe fittings

11. PE pipe fittings

12. ABS pipe fittings