New design solves scaling problems on geothermal control valves

Scaling is one of the most frequently occurring problems in geothermal power plants and can prohibit the control of well flow if it builds in the well or wellhead. The solution that was developed is a new valve, referred to as Elli-valve, which allows for better flow control and easier cleaning. It also has been shown to have economical advantages over other valves on the market. This solution could be useful in other geothermal power plants dealing with similar issues, and it also demonstrates how the ingenuity of the people most familiar with an issue, such as the plant workers, can be used to provide effective solutions to problems in any plant. A discussion cover the Reykjanes geothermal field; choosing the right control valve; issues with geothermal control valves; using old concepts to develop new designs; and the Elli-valve, which effectively combatted the scaling problem experienced at plants on the Reykjanes Peninsula.