Description :
Tenders for Corrigendum : Maintenance And Testing Of Gate, Globe, Butterfly And Check Valves At Hwpk During Mta -2025. - Valve Dismantling, Inspection, Maintenance, Replacement Of Consumables And Worn Out Components, Manual Actuator Servicing, Final Leak Testing And Painting Etc For Following Sizes Valves:, 1" Nb & 1-1/2" Nb Gate/ Globe/ Check Valve, 2 Nb & 3 Nb Gate/ Globe/ Check Valve, 4 Nb & 6 Nb Gate/ Globe/ Check Valve, 8 Nb & 10 Nb Gate/ Globe/ Check Valve, 12 Nb Gate/ Globe/ Check/ Butterfly Valve, 14 Nb Gate/ Globe/ Check/ Butterfly Valve, 16 Nb Gate/ Globe/ Check/ Butterfly Valve, 18 Nb Gate Valve Gate/ Check/ Butterfly Valve, 24" Nb Butterfly Valve, Removal Of Screwed Seat Rings, Repair Of Damaged Threads And Re-fixing Of Repaired/new Seat Ring Of Following Sizes & Class (removal Of Seat Ring Involved 3-4 Cycles Of Heating And Cooling And Heavy Torquing) (unit Is Nos. Of Seat Rings):, 6" Nb To 12"nb Gate/ Check Valves, 14" Nb To 18"nb Gate/ Check Valves
