| 摘要 |
A pipeline control unit that connects two conduits attached to opposing sides of a housing with an attachable pressure cover plate and a valve servicing assembly that can be installed onto the housing to form a fluid-tight structure. A pipeline control mechanism can be mounted in an access opening of the pipeline control unit to enable a user to selectively control fluid flow through the housing. The pipeline control unit allows the removal and replacement of the pipeline control mechanism without depressurizing a pipeling system. |
