Irrigation mouths are hydrant above the floor.The hydrant valve is composed of the control of the valve, the springs of automatic discharge, the casting pieces forming the main body, and the hose connection raki.With the help of the hydrant switch, the mileage is controlled and the opening closure is performed.When the miles clock pointer is translated in the opposite direction, the motion pipe moves downwards.Thus, the valve pieces in the body move down and the hydrant is opened.When the miles are turned in the direction of the clock, the hydrant is closed.The above -ground fire hydrants are used for the water supply of the fire department in factories, warehouses, industrial plants in the building environments and in the settlement areas.