Details: item no. 1 - providing, supplying, erecting & commissioning of surge protection system comprising of bladder vessel with minimum volume of 15 m3, pressure rating minimum 06 bar with shell - sa 516 gr. 70, elliptic cap - sa 516 gr.70, coating inside & outside - thickness 110 micron along with sand blasting sa 2.5 with butyl bladder in vertical position. vessel connecting pipe size 100 mm diameter, m.s. 400 mm isolation valve (confirming to din 3202 f4/is 14846/en 558:2008), pre charge pressure of 02 mt, load cell arrangement, necessary piping, flanges, fasteners, civil work etc. complete including all lead & lifts. (location of bladder vessel as per surge analysis report) item no. 2 - providing, supplying, erecting & commissioning of 3 - stage surge suppression air valve on delivery pipe (confirming to awwa c 512) of diameter 80 mm pressure rating minimum 06 bar with all cutting, welding of pipe for tee (t) connection, isolation valve (butterfly valve-confirming to (is 13095:1991
Sector: Water Resource Department