A fire hose delivery coupling is a connector used to join hoses or attach them to hydrants and pumps, ensuring a secure and efficient water flow during firefighting operations.
| Type of Material | Body, Assembly | Rubber Washer | Spring |
|---|---|---|---|
| Gun Metal | LTB2 – IS:318 | BS:337 (Type–A) | Phosphor bronze Wire: IS:7608 |
| Stainless Steel | Stainless Steel IS:3444 | BS:337 (Type–A) | Stainless Steel IS:6528 |
| Aluminium | IS:617 | BS:337 (Type–A) | - |
