| 摘要 |
FIELD: piping and valves. SUBSTANCE: shutoff member of cock is made sectional in the form of cylindrical rotary plug with eccentric necks and cylindrical bushing with wedging member installed for engagement with eccentric necks. Turning mechanism is made in the form of support bushing, drive disk and ball installed for interaction. EFFECT: enlarged operating capabilities, enhanced sealing of passage area of cock at high pressures. 6 cl, 3 dwg |
