procurement of bi directional scraper launcher receiver and signaller procurement of bi directional scraper launcher receiver and signaller , scope of supply for scraper launcher / receiver & pig signallers as per mr, data sheet &company specifications:- 14” x 8”, 300# bi-directional scraper launcher / receiver, pig signallers and accessories ( including supply of pig handling system ( trolley ) matching flanges for the entire flanged end nozzle. required studs, nuts, bolts, gaskets and foundation bolts ) , supply of 14 x 8, 300#, bi-directional scraper launcher / receiver including qoec & pig handling system ( trolley ) , pig signalers ( intrusive type ) to be mounted on pig launcher & receiver for item 1.1 , pig signalers ( intrusive type ) with isolation ball valve to be welded on8” pipeline , pig signalers ( intrusive type ) with isolation ball valve to be welded on12” pipeline , door seal for qoec for aboveitem 1.1 @ 2 nos. for each pig launcher and receiver , complete set of spare seals for pig signaller’s for above item 1.2 @ 1 sets / pig signaller ) , complete set of spare seals for pig signaller’s for above 1.3 ( @ 1 sets / pig signaller ) , complete set of spare seals for pig signaller’s for above 1.4 ( @ 1 sets / pig signaller ) , portable jacking tool for removing pig signaller for online maintenance. => limited