Syringe-connecting branch-piece - has non-return valves between inlet and syringe and syringe and outlet

摘要

The branch-piece connects a number of pipes to an injection syringe, having a housing with unions for the syringe and pipes and connecting passages for the syringe to the selected pipe. An inlet non-return valve allows flow from an inlet union to the syringe union and prevents it in the reverse direction. An outlet non-return valve allows flow from the syringe union to an outlet union and prevents it in the reverse direction.