REDUCING VALVE Russian patent published in 1996 - IPC

FIELD: fittings engineering. SUBSTANCE: rubber branch pipe of the reducing valve is positioned in a framework. The framework is formed by connecting plates with flanges and two guides. The framework carries a fixed reducing cross-arm. The movable cross-arm is connected to a drive and furnished with stops of its movement. The branch pipe length exceeds the distance between the framework flanges. The branch pipe is reinforced with cord having a lateral-longitudinal base. Branch pipe end sections have an intermittent lateral placement. At installation of the branch pipe in the framefork annular compensation crimps are formed. EFFECT: improved design. 6 dwg