Burrendong Dam Outlet Works - Refurbishment of Hollow Jet Valves and Ring Follower Gate Valve
Tender ID: 243251
Tender Details
Tender Description
The RFGV and HJVs are located at the outlet of the Burrendong Dam. RFGV is used as an emergency closure or isolating valve whereas the HJVs are the main control valves. All of them are operated using the hydraulic unit from the valve house.
The work includes
1) Decommissioning of the valves from the outlet works without affecting the safety and water delivery needs,
2) Refurbish the cracked concrete pedestal supporting HJV No. 2,
3) Refurbish the in-situ sections of the RFGV No. 3 and HJVs No 2 and No.3 and adjoining penstock sections,
4) Dismantling the valves into components and overhaul/replace any mechanical components, as necessary,
5) Abrasive blast and paint the valves,
6) Replace all internal and external seals, “O” ring gaskets and hydraulic packings, replace all tap screws,
7) Test and commissioning of the valves, and
8) Others as oulined in the RFT.
Refer RFT documents for the detailed scope of works.