SHUT-OFF VALVE Russian patent published in 2003 - IPC

Abstract RU 2202060 C1

FIELD: pipe line fittings. SUBSTANCE: shut-off valve has circular seat made from outer and inner rings and shut-off member having section for passage of working medium to inner ring and connected with rod of drive. Rod is provided with piston located in area between shut-off member and drive. Piston is free to move along inner walls of respective chamber available in inner cavity of body. Above-piston chamber is communicated with cavity under shut-off member. EFFECT: reduced mass and overall dimensions. 3 cl, 2 dwg

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RU 2 202 060 C1

Authors

Vaninskij N.Kh.

Lisovskij R.Z.

Fedoruk A.V.

Dates

2003-04-10—Published

2001-10-08—Filed