As per the contract, Metso will supply Neles rotary control valves and triple eccentric disc valves, which are expected to control the steamy process flow coming from the boreholes drilled into the ground.
"The loosened soil from the ground can include silica and sand, which sets special requirements on the valves to be able provide accurate control ability in such rough conditions. One of the challenges in these applications is the silica scaling," the company stated in a statement.
Green Energy Group steam systems product manager Snorri Einarsson said majority of valves fail to operate in the current project environment.
"We have also benefited from Metso’s Nelprof® valve selection program, which saves time since it is easy to use to calculate flow characteristics," added Einarsson.
"The next step will be to get all the plants hooked up to the Metso FieldCareâ„¢ Device and Asset Management software to carry out predictive maintenance with live monitoring of the valve performance."
Green Energy Group, meanwhile, is intending to launch four geothermal power plants in 2013 and has received an order for five more plants for next year.
