| 摘要 |
<p>A valve (10) for installation on a flow line (190) while the flow line (190) is under pressure. The valve (10) includes a two-part valve body (12, 14) and a valve cartridge (50). Each body portion (12, 14) has a semi-cylindrical channel (24, 36) sized to mate with the flow line (190). The body portions (12, 14) secured together with a portion of the flow line (190) enclosed and sealed in the channels (24, 36) of the body portions (12, 14). A throughbore (26, 38) extends through the two body portions (12, 14) and fully intersects the channels (24, 36) of the two body portions (12, 14). One end of the throughbore (26, 38) is adapted for attachment of a cutting tool (160), which is used to cut out the portion of the flow line (190) disposed in the throughbore (26, 38). After, the flow line (190) is cut, the valve cartridge (50) is directed into operating position. A valve stem nut (66), a valve cap (56), a valve plug (86), gaskets (44), seals (70, 88) and connectors (40) are provided to close and seal both ends of the throughbore (26, 38). <IMAGE></p> |
