HYDRANT Russian patent published in 1994 - IPC

FIELD: hydrants. SUBSTANCE: sealing collars are arranged over height of body with inlet and outlet. Installed in sealing collars for vertical displacement is tubular member plugged from atop. Hollow rod with holes over its height and horizontal partition may move vertically. Body has cover, its upper collar is located above outlet to form chamber in which collar of tubular member is installed on its upper end. Hollow rod has floating valve and stops. One stop is positioned on rod above cover, and the other stop, on lower end of rod installed in hollow of tubular member. 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 dwg