| 摘要 |
FIELD: valving. SUBSTANCE: stop and by-passing valve consists of cylindrical housing 2 provided with three rows of round by-passing openings 8a and 8b, cylindrical sleeve 6 with circular groove 17 that connects two rows of round by-passing openings 8b and is used for flowing air by-passing the plunger, plunger 13 which consists of two cylindrical parts one of which has a row of through axial openings 14 for free flowing of air through the valve when by-passing openings of housing 8b are open, sealing collar of plunger 5, springs 19 that hold the plunger in the operative open position of the valve, stop bushing 11 used for arresting movement of the plunger and locking it in the closed position of the valve to close the openings of the housing, connecting clutch 12, and connecting pipe 17 that connects the valve with the by-passing valve and member of emergency control. EFFECT: enhanced reliability. |
