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AUMA Actuators Limited

Thames Water chose AUMA Actuators for Hampton WTW

Thames Water has selected AUMA Actuators Limited to upgrade a pair of actuators situated off an access road to a yacht club near the company’s Hampton WTW - one of Thames Water’s largest sites built in the 1850s

Courtesy of AUMA Actuators Limited

The pair of installed actuators for replacement were undersized for the application, causing them to torque out and overheat, as the existing gearbox shaft arrangements were not specified for the increased torque of larger actuators.

Colin Borrows, Operations Manager, AUMA Actuators Limited, says:

“It was clear from our inspection that the installed devices were clearly not up to the job and were in danger of failing due to being under-specified for the task in hand.

“The valves controlled by the actuators form part of the Thames Water Ring Main (formerly the London Water Ring Main). On occasion, the valves are opened to discharge excess capacity into the River Thames. Our experienced engineers installed two AUMA SA14.6 actuators, which provide higher torque output and umbilical capability, with remote mounted AC control heads on adaptor brackets, plus two umbilical looms. This direct drive capability with umbilical looms delivers the ideal solution for Thames Water.”

Thames Water’s project specification required the replacement of two actuators with gearbox and shaft arrangements. AUMA’s innovative solution comprised units directly mounted with umbilical cable systems from actuator gearcases through to remote mounted AC control heads, and heads mounted onto redundant pedestals with adaptor brackets.

AUMA’s range of SA actuators is used for open-close duty and positioning duty, and can be combined with various controls from simple OPEN-CLOSE control to the micro-controlled version with logging of operating data or fieldbus interface. Design features include torque range from 10 Nm to 32,000 Nm; output speeds from 4 to 180 rpm; limit and torque sensing; available with 3-ph AC, 1-ph AC and DC motors. Handwheel for manual operation.


For more information contact AUMA Actuators Ltd | +44 (0) 1275 871141 |


About AUMA Actuators Limited

Based in Clevedon, near Bristol, AUMA Actuators Limited is the UK subsidiary of the global AUMA Reister GmbH and Co., the world’s largest manufacturer of electric valve actuators, operating on every continent, with 2,300 employees in 30 locations.

AUMA is the world leader in modular electric valve actuators and gearboxes, supplying a full range of actuators right across the process, water, petrochemical and energy sectors. AUMA manufactures robust, reliable equipment with sophisticated control and connectivity options, backed up with exceptional service support.

AUMA benefits include:

  • Rugged and reliable products.
  • Double-sealed actuator housing to protect the electronics.
  • Tough and resilient finish.
  • Powerful, with multi-turn actuators from 7 to 59,000 ft lb (10 to 80,000 Nm) and thrust acceptance up to 900,000 lbs (4,000 kN) and part-turn actuators from 18 to 498,000 ft lb (25 to 675,000 Nm).
  • Worldwide availability and support.
  • Modular, user-friendly design.