| 摘要 |
Apparatus for encasing branch connection to main feed pipe b uried in ground to prevent corrosion The apparatus for encasing a branch connection (10) fitted to an auxiliary feed (12) and a se ction of this feed near the connection with the main distribution pipe (1) buried in the ground, consists of a support (20) made u p of an open shuttering (40), guides (32,33) for lowering and rai sing the shuttering in an access pit (22) and a clamp (35) for ho lding the shuttering (40) in relation to the main pipe (1), and a pressure mould made up of two half shells (21,22) placed in the interior of the shuttering (40). These half shells (21,22) are co ntrolled in their displacement one in relation to the other by ad justers (23,24) and an orifice (25) is provided through the shutt ering and the pressure mould (21,22) to allow the introduction of the encasing material in the pressure mould.
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