METHOD OF STOP VALVES GATE ASSEMBLY UNIT SOLID INTERPACKING SPACE FORMATION Russian patent published in 2017 - IPC F16K1/02 F16K1/36 F16K25/00 

FIELD: machine engineering.

SUBSTANCE: method of stop valves gate assembly unit solid interpacking space formation includes increasing the actual contact area of the mating sealing surfaces; the formation of permissible deviations from the nominal plane of the sealing surfaces; the permissible roughness index; necessary condition of tightness. On the ring contacting sealing surfaces of the gate assembly unit of the stop valves, a concentric, closed-loop guide line is performed.

EFFECT: increased sealing of the sealing surfaces by means of increasing the actual area of their contact.

3 cl, 5 dwg