hiring of diesel engine driven pump set at rub baderpur , hiring of 2 no . dewatering sewage pump set coupled with d . g set of 82 -110 bhp capacity , having discharge rate of 140 -180 lps at head of 35 -40 meter along with suitable suction and discharge pipe upto 60 meter without hsd oil round the clock . operation to be done by agency ( by providing 03 nos . of operator 01 no . in each shift ) operator , minor addition alteration in the existing pipeline such as providing and fixing of reducer , flange , gasket , clamp , nut bolt etc i / c to and fro cartage etc . complete as required . , providing and laying s&s centrifugally cast ( spun ) / ductile iron pipes conforming to is : 8329 : , 200 mm dia ductile iron class k-7 pipes , 400 mm dia ductile iron class k-7 pipes , supplying , fixing , testing & commissioning of double flanged sluice valve of rating pn 1 . 6 with non rising spindle , bronze / gun metal seat , isi marked complete with nuts , bolts , washers , gaskets and conforming to is 780 of following sizes as required : , 200mm dia , providing , installation , testing & commissioning of non-return valve of following sizes confirming to is: 5312 complete with rubber gasket , gi bolts , nuts , washers etc . as required : , 200mm dia