Product category:
Potable water, test and treatment
News Release from: Rotork Controls | Subject: STW valve actuation upgrade
Edited by the Processingtalk Editorial
Team on 31 January 2008
Major valve actuation upgrade for STW
Rotork IQ and IQT range intelligent electric valve actuators have been installed as part of a multi-million pound upgrade and modernisation programme at one of the Severn Trent water treatment works
A total of 136 actuators have been fitted by Rotork Site Services to existing valves on Rapid Gravity (RGF) and Granulated Activated Carbon (GAC) filter beds to provide a more reliable, economical and low maintenance alternative to the hydraulically operated system originally installed Nikki Holden, Senior Agent for Interserve Project Services, responsible for the upgrade at the water treatment works, explains: "The actuators were specified for the upgrade application in line with the water industry preference for electric actuation, through the Rotork framework agreement with Severn Trent
This article was originally published on Processingtalk on 4 Mar 2003 at 8.00am (UK)
Related stories
Rotork wins orders from Mexican petroleum industry
Valve actuation specialist Rotork is supplying heavy duty electric and pneumatic actuators and two-wire control systems for important onshore and offshore petroleum projects in Mexico
Rotork supplies UK hydro-electric power station
Rotork electric valve actuators are contributing to a noteworthy renewable energy refurbishment programme at a power station owned by South West Water, England's largest hydro-electric power station
The choice of installer was the responsibility of Interserve as project manager and we selected Rotork Site Services for the work due to their specialist retrofitting skills and extensive experience of similar projects".
Each of the fourteen RGF and twenty GAC filter beds at the water treatment works has been retrofitted with Rotork IQ multi-turn actuators on 500 or 600mm inlet and outlet penstocks and IQT direct drive quarter-turn actuators on 200mm air scourer butterfly valves.
The Rotork Site Services scope of supply encompassed an initial valve survey, the design and manufacture of new screwed valve stems and pedestals for the penstocks and adaptors for the butterfly valves, actuator sizing, installation and commissioning.
Butterfly valve adaptors were sourced from Valvekits, the dedicated valve accessory company within the Rotork Group.
Rotork IQ/IQT actuators feature 'non-intrusive' commissioning and data interrogation by means of a bi-directional infra-red link to a hand held setting tool.
A data logger in each actuator stores historical valve operating data including torque profiles which can be downloaded and analysed using Rotork IQ-Insight software to minimise the requirement for routine valve maintenance.
The Rotork contract is part of a GBP8 million investment to upgrade the quality and efficiency of water treatment at the site for the benefit of customers in the Cheltenham and Worcester areas.
• Rotork Controls: contact details and other news
• Email this article to a colleague
• Register for the free Processingtalk email newsletter
• Processingtalk Home Page
Search the Pro-Talk network of sites
