During the last quarter, Hydrosave has seen an increase in the number of valve release projects coming from the waste water sector. Typically these are smaller in size than those seen in the clean water sector, Gate valves 6” to 15” and Plug Valves up to 12”. Recent projects have also included the larger diameter Penstock versions.
As with all water industry valves, waste water valves seize for the same reasons, however this sector differs in respect to the following factors which are very specific to this environment:
- Increased build-up of organic matter on the internal components
- Increased corrosion due to vast variations in extreme pH values
- Un-maintained or zero Cathodic Protection
- Strangulation of internal components due to ‘ragging’
- Worn valve seats due to storm water aggregates
- Fats Oils and Greases
- Lack of use due to hazardous locations
The ‘clever valve release technology’ performs in the same manner and with the same successes in all environments. However, unique to waste water valves it is proving more beneficial to fully cycle the valves simultaneously whilst applying constant frequency changes in order to fully remove the particulate build up.
There has been a 100% success rate on all valves released to date. This has saved customers significant replacement costs, maintained high quality customer service and ensured safe working practices are being adopted in difficult operational circumstances.
Hydrosave also offer Cathodic Protection surveys and solutions for assets in order to protect against further corrosion.
