Rotork installs over 700 actuators at Chinese wastewater plant

Rotork Australia

Friday, 09 October, 2020

Rotork installs over 700 actuators at Chinese wastewater plant

Rotork has installed over 700 of its CK modular electric actuators in the sewage treatment facilities of the city of Shantou in Guangdong, southern China, where they enable sewage treatment to be carried out in accordance with new environmental regulations.

In order to comply with these new regulations, three new sewage treatment plants and 300 sewage intercepting wells will be built in Chaonan District, Shantou. The installation of the CK actuators was a critical part of this enhancement. They have been installed on gate valves around the new sewage treatment plants, where they will be controlling the flow of raw sewage in and out of the sewage interceptors, where contaminants are separated from the wastewater, which can then continue the purification process until it is safe to return into the environment. 100,000 tonnes of wastewater will be processed every day.

The CK actuators were selected due to their performance and price. Rotork Site Services was able to have the actuators commissioned within the tight timeframe specified for the project and will continue to provide maintenance services following the installation.

Rotork says its CK range of actuators is suitable for valves in the water industry and the modular nature of the actuators means they can be configured to meet the needs of many different applications. With a multiturn output torque of up to 10,800 Nm, the actuators can provide continuous valve position indication, even with loss of power. They have a secure hand wheel fully independent of the motor drive train and have an IP68 O-ring double-sealed rating (up to 8 m for 96 h).

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