- Headed from booster pump to ground floor .
- Located along staircase
- Consist of Hydrant valve and hose reel on each floor
- 2way /4way valve is connected at ground level
- External water supply is provided through 2way/4way valve to wet riser.
A fire hydrant is a vertical steel pipe with an outlet, close to which two fire hoses are stored.During a fire, firefighters will go to the outlet, break open the hoses, attach one to the outlet, and manually open it so that water rushes out of the nozzle of the hose.


consist of two wheels for adjusting the pressure of water Female outlet of hosepipe is connected to male outlet of hydrant valve



