SUCTION DEVICE FOR EXISTING PIPE LINING METHOD

摘要

PURPOSE: To provide a suction device of an existing pipe lining method constituted to regulate an in-pipe lining speed at the time of a stage for suction lining of a resin by a suction effect of a suction pump and to assure the easy and failproof checking as to whether plural pigs are recovered from the inside of the pipe or not. CONSTITUTION: This suction device has the suction pump which sucks and discharges the liquid in the pipe from a pipeline, a recovering tank which recovers the sucked liquid, a pig passage detecting means (constituted by connecting a detecting part 30 and alarm part 31 by a cord 32) which emits an alarm by detecting and counting the pigs when the pigs pass and a valve means 35 with an orifice which has an effect of regulating the lining speed and once stops the pigs to be recovered.