supply and delivery of di/df gate sluice valves 300mm ward no 85-= 1 supply and delivery of di d/f gate sluice valves (soft seated) resilient seated soft sealing gate valves(sluice valves) with body bonnet of ductile cast iron of grade ggg 40 or equivalent grade, wedge fully rubber lined with epdm replaceable spindle nut without gland packing and with 3 o- ring protection on the shaft and seals of nbr and the valves should be of vacuum tight and 100% leak proof with face to face dimensions as per bs 5163- 89/isi 14846-2000/din 3202 f4. all the valves should be with electrostatic powder coating both inside and out side with pocket less straight through body passage. all the valves are to be compatible for buried application with pressure rating pn 10/16 and with 5 years 300mm dia di d/f sluice valve 2 constrution of valve champer in earth work , pcc 1 : 4 : 8 , shutering side , ms grill , rcc 1 : 1.50 : 3 , in valve champer size in 2.00m x2.00m x 2.00mincluding labours, loading & unloading charges etc completed. 3 hire charges for deploying earth moving machinery (jcb/poclain) for earthwork including diesel, oil and labour charges etc., complete. 4 add gst 18%