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New Zealand water treatment plants receive Rotork actuators

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Rotork IQ and IQT actuators have been ordered for several water treatment plants in New Zealand.
The Matamata Piako District Council, of New Zealand’s North Island, has chosen to upgrade multiple sites from pneumatic to electric actuators.
The flow control of three large water treatment sites in Morrinsville, Matamata and Te Aroha, as well as smaller sites in Te Poi, Hinuera and Te Huna, will be upgraded when existing pneumatic actuators are replaced with actuators from Rotork’s IQ range.
Rotork will supply these with stainless steel pedestals where required.
The council wished to upgrade to the benefits of electric actuators because of concerns with the previous set-up - the old actuators had continual problems with sticking.
This was caused primarily because of the damp, chlorinated atmosphere in which they were operating. This caused degradation to the aluminium actuator body.
The supplied IQ actuators provide control of filters, as well as the chemical dosing and storage of potable water.
The use of electric actuators will reduce the Matamata Piako District Council’s energy bill, as they will no longer have to power compressors to provide an air supply to the pneumatic actuators.
Over 100 actuators across the IQ range were ordered, including IQT and IQS variants. These reliable and robust actuators provide an innovative electric flow control solution, with an intuitive user interface (HMI), absolute position sensor, water ingress protection and detailed data logging.