Jersey Water has increased the levels of reliability and the efficiency of flow control on its sites after replacing obsolete actuators at two water treatment sites on the Channel island. The provider replaced its old equipment with Rotork’s IQ3 intelligent electric actuators.
Jersey Water was founded in the mid-19thcentury and now supplies up to 20 million liters of water per day (5.28 million gallons per day) to the residents of the island. The provider operates two water treatment sites, both of which have been recently overhauled. In 2019 the Augres site was updated and in 2021 actuators were installed at the Handois water treatment works.
Water in the treatment works at Handois is supplied from Handois Storage Reservoir and the raw water transfer main via Mont Gavey Storage Tank, while the Augrès Treatment Works is supplied from the raw water transfer main via the Beechfield Raw Water Storage Tank.
These treatment works use a two-stage water treatment method of chemically assisted sedimentation and rapid gravity filtration, then followed by chloramination disinfection with chlorine and ammonia and finally UV reactors for cryptosporidium control.
The newly installed IQ3 actuators control the flow of water at the heart of this process. They operate penstocks to aid the flow of raw water into the filter beds. Part-turn IQT actuators were installed on the backwash, drain, air scour areas, as well as the outlet flow control. The watertight protected IQ3 is double-sealed and certified to IP66/68 standards, making it ideal for water applications.
The installation of the actuators at Handois required delivery and commissioning within a tight time-frame, which was fulfilled swiftly by Rotork Sales and Service Department. After these upgrades, Jersey Water now operates nearly 200 Rotork actuators at Augrès, Handois, and the La Rosiere Desalination Plant. Rotork has been supporting Jersey Water since the early 1990s and now benefits from regular Health Checks to ensure their actuators are operating to high standards of functionality, efficiency, and reliability.
