| 摘要 |
Method for replacing a main conduit for a fluid, such as a water conduit, with a new main conduit, wherein the main conduit is connected to a plurality of house connection conduits which lead to a plurality of end users, which method comprises of: closing the main conduit; placing a first and a second closure coupler at a distance from each other in the main conduit, which first and second closure couplers are each provided with a passage in which a removable barrier plate is arranged; wherein placing of the first and second closure couplers in the main conduit is such that the closure coupler is inserted such that the passage lies in line with the main conduit; removing a conduit portion of the main conduit between the first and the second closure couplers and arranging a new conduit portion between the first and the second closure coupler; removing the barrier plate from the first closure coupler; placing a third closure coupler at a distance from the second closure coupler in the main conduit, which third closure coupler is provided with a passage in which a removable barrier plate is provided; wherein placing of the third closure coupler in the main conduit is such that the third closure coupler is inserted such that the passage lies in line with the main conduit; removing a conduit portion of the main conduit between the second and the third closure coupler and arranging a new conduit portion between the second and the third closure coupler; removing the barrier plate from the second closure coupler. |
