The siammesse connection functions as a connecting coupling between the fire engine pump and the building’s hydrant network. Used during an emergency the building’s hydrant system cannot work or when the water in the ground tank runs out. Standard coupling can be coordinated to the local fire department. Usually for the DKI Jakarta area uses the VDH type and for areas outside DKI Jakarta use the Machino Coupling type.
Specification
| Type | S7 & S11 |
| Size | 4″ x 2,5″ x 2,5″ |
| Material | Brass |
| Finishing | Pollish coating |
| Weight | 8800 gram |