Case Study Water 1
Three 72 inch diameter gate valves were needed to be opened quickly. The valves were seized in the closed position. Water levels in a nearby reservoir had to be boosted by pumping additional supplies through the valves.
Drought conditions were prevailing and water levels were becoming critically low.
In only 7 days, Hydra-
valves within 2 days. Traditional methods would have taken many months
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Case Study Water 2
A 24 inch diameter pipeline had a restricted throughput. Investigations by Hydra-
Case Study Water 3
Four 12 inch diameter gate valves in a reservoir draw off tower were found to be seized. The exact position for each valve could not be determined. A reservoir inspection concluded that all of the valves had to be made operational or exchanged
Case Study Water 4
A Utility Subway with two 16 inch water mains was found to have all 27 valves seized. The valve spindles had corroded and had broken flush with the packing glands. Other utility companies had laid cables on top of the valves making access virtually impossible. There was an extremely high risk of flooding and as a result an elaborate contingency plan had to be put in place.
Case Study Water 5
A critical 8 inch network valve was seized but needed to be operated. Earlier attempts to move the valve had damaged the spindle. The valve was located in a very busy, traffic sensitive road.