Description
Hydrant valve for fire fighting
Storz type, Nakajima type, UN type, Machino type, BS**6 type, BSP
type and so on
Products size: 3/4", 1", **1/2", 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.
