The valve that connects the hydrant run to the main
WO is wash out, SV is stop valve, FH is fire hydrant.
Opens the water valve so the water flows.
A hydrant is an attachment valve from a water main used by the fire department. One of the key features commonly found is an poppet shutoff that usually works to shut off the water if a car hits the hydrant.
regulator consisting of a valve or gate that controls the rate of water flow through a sluice
Nothing, they both dispense water There is a second one in case two hoses are needed
A hydrant is any discharge pipe with a valve and spout at which water may be drawn from a water main. Obviously we nearly always see these in conjunction with supplying water to fight fires, but calling it a fire hydrant makes that specific. It also probably gets tacked on to emphasize the purpose of the hydrant.
A discharge pipe with a valve and spout at which water may be drawn from the mains of waterworks; a water plug.
A dry hydrant is backflushed after a suction hose connection is made to a fire department pumper. The backflushing occurs when the pump operator opens the water tank valve. This will allow tank water from the pumper to flow through the suction hose into the dry hydrant piping and strainer. This process allows dirt and debris from the water source that has collected in the dry hydrant strainer and pipe to be removed.
no hydrant
A fire hydrant should be opened fully to ensure maximum water flow and pressure during firefighting operations. Opening it partially may restrict the flow and hinder firefighting efforts.
Because its the only type of hydrant there is