AUMA Actuator Upgrade After 40 Years Continuous Service for Anglian Water

Date 18.09.2023

An AUMA actuator that was originally installed back in the 1980s when big hair was the style of the day and new romantic bands like Duran Duran and Spandau Ballet were top of the charts, has been replaced after over 40 years in service.

The original AUMA SA6 B electric actuator was installed on a filter drain valve at Anglian Water’s North Walsham Water Treatment Works, just south of Cromer in north Norfolk. The actuator was replaced as part of AUMA Actuators Limited’s Service Level Agreement with Anglian Water.

Paul Hopkins is AUMA Actuator Limited’s managing director. He says:

“It’s extraordinary to think of the changes that have occurred during the service lifetime of this actuator. When it was first installed the internet as we know it didn’t exist and mobile phone communications were in their infancy. 

“This clearly demonstrates the longevity and reliability of AUMA electric actuators, which prevents service downtime and maximises return on capital investment for water companies. Just think how many mobile phones we have all upgraded during the operational lifetime of this brilliant piece of equipment.”

The replacement pair of AUMA SA07.6 electric actuators with AC01.2 controls were supplied along with two machined drive nuts. The new actuators were supplied to site packed in bespoke, reusable wooden packaging in just seven days from order.

AUMA's current 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.

North Walsham became a centre for weaving in the Anglo-Saxon era. The wealth generated enabled the local people to build St. Nicholas Church which dates back to 1330. Its tall tower is the second tallest in Norfolk after Norwich Cathedral.

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