tender for supply & installation of micro drip irrigation unit (mdi) , name of the items for each mdi: , head control manifold assembly 50 mm manifold with necessary tees, bends, reducers, unions, adaptors, and supports , screen water filter 50 mm screen/strainer filter, capacity 5,000-20,000 lph, 120 mesh or suitable mesh (is 12785:1994) , pressure gauge 0-4 kg/cm² with gauge cock and fittings , pressure release valve adjustable type, suitable for drip irrigation pressure (is 12992 part 1:1993) , venturi fertilizer injection system venturi injector with bypass, suction hose, foot strainer, nrv, and fittings (is 14483:1997) , main control valve 50 mm ball valve/gate valve, irrigation duty (is 14846 / latest) , main and sub-main hdpe pipe 32 mm dia., b class, (is 4984-2016 / latest) , 12 mm pe emitter pipe / lateral pipe emitter pipe with 2 lph emitters at 40 cm spacing, and field adjustment approx. 1% (is 12786:2024), including the required number of 12 mm riser of 60 cm , flush valve/end cap and all other fittings and accessories is 8008 for hdpe fittings, wherever applicable. flush valve, end cap, rubber grommets, joiners, couplers, elbows, tees, reducers, male/female adaptors, clamps, etc., and teflon tape, saddles, solvent/jointing accessories as applicable , manifold-to-main reducer fittings 50 mm to 32 mm g.i. reducer and connection fittings (is 1879:2010) , commissioning at the site of beneficiaries, including transportation and demonstration