ductile iron pipe fittings include:
1. Grooved Coupling (Rigid coupling and flexible coupling).
2. Tee and reducing tee (grooved and threaded).ductile and malleable iron threaded
3. Mechanical tee (grooved and threaded).
4. U-bolt Mechanical Tee (threaded).
5. Grooved Cross and reducing cross.
6. Grooved Elbow (11.25°, 22.5°, 45°, 90°).
7. Grooved reducing union (Eccentric and concentric).
8. Cap
9. Flange
Threaded black or galvanized Malleable iron pipe fittings include :
1. elbow （reducing and equal）
2. Tee, equal and reducing
3. pipe couplings/socket ,equal and reducing
4. pipe nipples(hexagon), equal and reducing
5. Cross（equal and reducing ）
6. pipe unions (conical joint and flat seat joint)
7. Solid plug.
8. End cap
9. bushing
