Mounted between rod stop above cover and regulating member is spring. Regulating member is made in form of threaded bushing accommodating rod upper end. Plug of tubular member has stops and stuffing box seal. EFFECT: higher efficiency. 2 cl, 2 dwgKOBOZEV ILYA V...
The drain pipe of the hydrant valve box is connected to a jet pump located in the body of the water pipe. A check valve and a float valve are installed between the drain channel and the jet pump.;EFFECT: reduction in the accident rate on water supply networks and preservation of high ...