The technical specifications of the fire hydrant coupling are as follows: It has a size of 63mm and is available in stainless steel, gun metal, or aluminum alloy materials. The outlet is a female instantaneous type. It conforms to IS:9003/1993 standards. The body assembly, rubber washer, and spring components vary based on the material type. It has undergone a hydraulic test at 21 Kgf/cm2 and has a natural polished finish with a hologram sticker for identification.
| TYPE OF MATERIAL | STAINLESS STEEL | GUN METAL | ALUMINUM |
|---|---|---|---|
| BODY, ASSEMBLY | STAINLESS STEEL IS : 3444 | LTB 2 IS : 318 | IS 617 |
| RUBBER WASHER | IS : 937 (TYPE-A) | IS : 937 (TYPE-A) | IS : 937 (TYPE-A) |
| SPRING | STAINLESS STEEL IS : 6528 | PHOSPHORUS WIRE IS : 7608 | STAINLESS STEEL IS : 6528 |
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