Valves. Sluice valves 80mm diameter and above diameter shall be cast iron double flanged solid wedge, outside screw non rising stem, yoke type bonnet and two piece gland construction. The valves shall have renewable screwed body seat rings. Flanges shall have raised faces and serrated face finish and shall conform to IS 780-1984. Check valves shall be cast iron double flanged conforming to IS: 5312-1975 with cast iron steel body 13% chrome steel disc, hang pin and body seat ring.
Appears in 3 contracts
Sources: Concession Agreement, Concession Agreement, Concession Agreement