| 摘要 |
<p>The break-away coupling comprises a pair of tubular coupling members (10,11), each being arranged at its one end (14) for connection to a length of hose line and provided at its other end with a face (12) to be held in sealing engagement with a complementary face (13) of the other member by frangible connectors (18). Each connector has one end length (19) of spatulate shape and formed with a through opening to receive a shear pin (20). - A screwed length (21) at the other end receives a nut (22), and an intermediate length (24) of reduced section is also provided. Valve members (30), in the coupling members, are held in open positions against the action of springs (33) until the coupling members are separated on breaking of the connectors. The valve members then close under spring action. GBAB- GB2076917 B The break-away coupling comprises a pair of tubular coupling members (10,11), each being arranged at its one end (14) for connection to a length of hoseline and provided at its other end with a face (12) to be held in sealing engagement with a complementary face (13) of the other member by frangible connectors (18). Each connector has one end length (19) of spatulate shape and formed with a through opening to receive a shear pin (20). - A screwed length (21) at the other end receives a nut (22), and an intermediate length (24) of reduced section is also provided. Valve members (30), in the coupling members, are held in open positions against the action of springs (33) until the coupling members are separated on breaking of the connectors. The valve members then close under spring action. (5pp Dwg.No.1) - GB2076917 B The break-away coupling comprises a pair of tubular coupling members (10,11), each being arranged at its one end (14) for connection to a length of hose line and provided at its other end with a face (12) to be held in sealing engagement with a complementary face (13) of the other member by frangible connectors (18). Each connector has one end length (19) of spatulate shape and formed with a through opening to receive a shear pin (20). - A screwed length (21) at the other end receives a nut (22), and an intermediate length (24) of reduced section is also provided. Valve members (30), in the coupling members, are held in open positions against the action of springs (33) until the coupling members are separated on breaking of the connectors. The valve members then close under spring action. (Dwg.1) USAB- US4614201 A The break-away coupling for incorporation in a hoseline or pipeline comprises a pair of tubular coupling members. Each is arranged at its one end for connection to a length of hoseline and provided at its other end with a face to be held in sealing engagement with a complementary face of the other member by frangible connectors. Each connector has one end length of spatulate shape and formed with a through opening to receive a shear pin, a screwed length at the other end to receive a nut, and an intermediate length of reduced section. - Valve parts in the coupling members are held in open positions against the action of springs until the coupling members are separated on breaking of the connectors. The valve parts close under spring action. A bleed passageway may be provided to prevent build-up of pressure between the complementary faces, and provide a seal testing facility.</p> |
