| 摘要 |
FIELD: construction. ^ SUBSTANCE: connection of pipelines comprises nozzle with internal sealing cavity and two annular collars. Sealing surface of nozzle is formed with two crossing conical surfaces: larger and smaller ones. Connection comprises sleeve nut with support surface and incision ring with back and front parts. Back part of incision ring is arranged with band, and front part of ring comprises working edge adjoined with front part of curvilinear external surface. ^ EFFECT: improved tightness of connection and achievement of self-braking effect at contact of incision ring with nozzle. ^ 5 cl, 2 dwg |
