Hydrant valve for fire fighting
Storz type, Nakajima type, UN type, Machino type, BS336 type, BSP type and so on
Products size: 3/4", 1", 1-1/2", 2", 2-1/2"
Mateiral brass or Aluminun
Saimese valve
?Angle pressure reduce valve
Hose reel valve
Most fire hydrant valves are not designed to throttle the water flow; they are designed to be operated full-on or full-off. The valving arrangement of most dry-barrel hydrants is for the drain valve to be open at anything other than full operation. Usage at partial-opening can consequently result in considerable flow directly into the soil surrounding the hydrant, which, over time, can cause severe scouring. A hose with a closed nozzle valve, or fire truck connection, or closed gate valve is always attached to the hydrant before opening the hydrant's main valve.
