QUICK-DETACHABLE PIPE JOINT Russian patent published in 1996 - IPC

FIELD: pipe line engineering. SUBSTANCE: side surface of valves contains guide and closing segments. The letter is conical and positioned in front of the sealing member for permitting interaction with the answered conical segment of the housing. The angle between the generatrices of the answered conical segment of the housing is 59-50 deg. A ring groove is made on the side surface of the valve behind the closing segment. The grove receives a sealing member. EFFECT: enhanced reliability. 2 dwg