Sub-Sahara Mining & Industrial Journal

Rotork installs CK actuators at Chinese plant

Over 700 of Rotork’s CK modular electric actuators have been installed at the Shantou wastewater treatment plant in Guangdong, southern China, where they facilitate sewage treatment in accordance with new environmental regulations.

Three new sewage treatment plants and 300 sewage intercepting wells will be built in Chaonan district, Shantou city.  The CK actuators have been installed on gate valves around the new sewage treatment plants, where they will control the flow of raw sewage in and out of the sewage interceptors, where contaminants are separated from wastewater, and then continue the purification process before being safely returned into the environment. 100,000 tonnes of wastewater will be processed every day.

Rotork’s CK actuators are for valves in the water industry and their modular nature allows them to be configured for use in many different applications. With a multi-turn output torque of up to 10,800 Nm (8,000 lbf.ft), they provide continuous valve position indication, even on loss of power. They have a secure handwheel independent of the motor drive train and an IP68 O-ring double sealed rating (8 m for 96 hours).

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