tender for replacement of 400 mm dia nrv of pump set no. 1, 4, 5 & 6 at jal vihar (old) bps under jangpura constituency ac-41. , supply of cidf 400 mm non return valve and rating pn-1.0. make:- kirloskar/ivc/any djb approved make. , supply of m.s. pipe of size 400 mm dia. and thickness 8 mm , supply of m.s. flange of size 400 mm dia. , supply of nut bolts & washer , supply of 75 % neoprene rubber packing sheet. make:-jyoti/deepjyoti/ any djb approved make. , dismantling and re-installation, erecting, testing, and commissioning 4 nos. of 400 mm dia. non return valve and all other allied works and other accessories, with necessary required all sundry items for completion of work. installation work includes labour like fitter, welder, cutter, helper, beldar, chowkidar, supervisor, and electrician and material like welding machine, cutter set, welding rod, nut bolt with washer, packing sheet etc. the work includes cartage, loading, unloading of material, adequate safety provision, pumping out water caused during the dismantling and installation work. testing and commissioning of line as per satisfaction of engineer in-charge. firm has to complete the work in all respect against this no extra payment given to the firm.