RELEASABLE CONNECTION FOR PRESSURE PIPE-LINES Russian patent published in 1998 - IPC

FIELD: pipe-pines. SUBSTANCE: releasable connection for pressure pipe-lines includes connection bushing 1 and plug 2. Bushing 1 has two axial interconnected holes 3, 4 with different diameters. Ring slot 5 is taken up on side of hole 3 of bigger diameter around hole 4 of smaller diameter and uniaxially to holes 3, 4. When element 1, 2 are joined plug 2 enters hole 3 of bushing 1. Plug is put on nipple 6 formed by ring slot 5 and hole 4 of smaller diameter. Packing element 9 located in plug 2 fits tight smooth surface 7 of nipple 6. Proposed design of bushing 1 and corresponding plug 2 facilitates connection and disconnection with specified section of flow hole with lesser efforts than in traditional connections. EFFECT: improved functional characteristics of releasable connection. 9 cl, 4 dwg