New Explosion-Proof Electric Actuators for Continuous Underwater Use by Auma

24.08.2018

Electric actuator manufacturer Auma has enhanced its underwater actuators with explosion-proof versions. These actuators are suitable for continuous immersion, thus considerably extending the scope of application of electric actuators in water supply systems, hydropower plants, civil engineering constructions for water applications, and specific underwater applications.

New Explosion-Proof Electric Actuators for Continuous Underwater Use by Auma

A new version of the Auma SA and SAEx multi-turn actuators is suitable for continuous underwater use (Image: Auma)

Where water supply or sewer pipes run underground, actuators and valves are often installed in pits below ground level. Actuators designed for underwater use are ideal for installation in monsoon regions or in areas with a high risk of flooding as they will operate reliably even if flooding persists. The new explosion-proof version is available for sewers and sewage pits, where fermentation gases generate a risk of potentially explosive atmospheres during dry periods.

Thanks to a universal sealing system combined with comprehensive corrosion protection these actuators can reliably operate under water for many years. Double-sealed cable glands at the electrical connection, inner seals – some in pairs – on all housing covers, and a one-piece solid shaft effectively prevent the ingress of water.

SA and SAEx actuators in sizes 07.2 to 16.2 for continuous underwater use are qualified for up to 15 m head of water, with higher heads of water available on request. Explosion-proof versions meet ATEX requirements.

All actuator settings, including end position settings for travel and torque, are made non-intrusively via the AC actuator controls, without opening the actuator housing. The actuator controls are installed outside the flooded area, separate from the valve and actuator, and connected via cables. Cable lengths up to 100 m can be achieved.

More articles on this topic

AUMA Supports Offshore Platforms

29.07.2020 -

AUMA electric actuators are increasingly being deployed on offshore converter platforms providing high voltage direct current transmission (HVDC) for wind farms. Approximately 150 AUMA SQ part-turn actuators with intelligent AC actuator controls ensure reliable valve automation on the BorWin gamma converter platform in the North Sea, for example.

Read more

AUMA wins major tank farm order

02.07.2020 -

Electric actuator manufacturer AUMA has won the largest order in the company’s history, to supply a total of 2,756 explosion-proof electric actuators for the HES Hartel Tank Terminal in the Port of Rotterdam, the Netherlands. AUMA is the sole actuator supplier for this project.

Read more

Control technology in a magnetic field – Velan Group and Siemens rely on close cooperation for valve development

31.01.2020 -

The Velan Group is a world leader in the design and production of cast and forged steel valves for the chemical and pharmaceutical industry. One product manufactured by the company is cryogenic control valves, i.e. valves for use at extremely low temperatures, for systems that are researching superconductivity, particle accelerators, nuclear fusion equipment, rocket launch pads and liquefaction plants for helium and hydrogen.

Read more

Auma Actuators Support Ethernet/IP

02.08.2019 -

Auma actuators are now available with an Ethernet/IP interface as the company continues to invest in pioneering Industrial Ethernet communication. Ethernet/IP is the third Industrial Ethernet standard that the company supports, in addition to Profinet and Modbus TCP/IP.

Read more
Directly to the product selection in

PumpSelector

LATEST NEWS

  • Events

    « October 2020 » loading...
    M T W T F S S
    28
    29
    30
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    1
  • JOB MARKET