Public Works Department Tender

Supply and fixing of single Chamber, Double Orifice D.I Air valve with Triple function venting. admitting and venting during operation) Tamper proof in one piece construction (Both Large and small Orifice housed in the hOUsing itself), with capacity to handle air up to sonic velocity (300 m/s) with flange dimension aCc. To EN 1092 -2/IS 1538. Body and cover in ductile cast iron of grade GGG 40. All internal parts such as float, shell etc & all cover bolts of austenitic alloy steel and DN 50 float of HOSTAFLON and gaskets and seals of EPDM approved for anti bacterial which is mandatory for drinking water, with Electrostatic epoxy power coating (EP - P) inside and outside color blue RAL 5005 with minimum coating thickness of 250 microns. The EPDM rubber and Epoxy Power should be approved by W270. (EP -P it is a resi - coat powder approved for drinking water application, applied through fusion bonding technology process by dipping the shot blasted casted Components heated up to 200 deg C). VAG DUO JET or approved make air valve in the distribution line/ pumping main for south Zone water Supply system, Karaikal 80mm dia air valve.

Supplying and fixing of 25 X 25 mm size vaccum pump (KIRLOSKAR/MAXWELL/DEKKAR) make 3 phase monoblock motor and pumpset complete.-2.2 KW/3 HP