Electric Actuators Articles
Electric actuators, also known as electric machines are electromechanical devices that convert electrical energy into mechanical torque. No oil is used which makes it a very clean type of actuator. This is usually enabled through the interaction of magnetic fields and current-carrying conductors to create force. In some cases, electric actuators can also be used as generators to convert mechanical energy into electrical energy.
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Schischek to exhibit at Offshore Europe 2013
Schischek will be present at the SPE Offshore Europe Exhibition in Aberdeen this September, for the first time exhibiting with parent company Rotork.
As an established manufacturer and supplier of electric explosion-proof control equipment for offshore HVAC applications, Schischek will be displaying the ExMax quarter-turn rotary actuator that i...
Valve User Issue 26
Malvern’s World Famous Braniacs Deliver World-Beating Actuator: ‘75 per cent energy savings on old-style products’
The historic and picturesque Malvern Hills were chosen by Winston Churchill to be the home of Britain’s boffins during the Second World War. The rolling Worcestershire hills have seen the invention of the radar and the development of the very first LCD TVs.
Nestled in the heart of the hills a third, world-beating invention, has emerged which is...
Valve User Issue 26
SACO Powers into UK Market with BVAA membership
SMART ACTUATOR manufacturer SACO has announced its membership of the British Valve and Actuator Association timed to unveil its ground-breaking technology into the UK market.
The Malvern-based company has developed a revolutionary actuator which shows energy and cost savings of over 75 per cent over traditional motor-driven systems.
The act...
Valve User Issue 26
Zoedale to Supply 319 Actuators to Prestigious Middle East Construction Project
Following on from the success of an initial order for 41 actuators to suit large 350mm and 600mm butterfly valves to a very prestigious development in Qatar, Zoedale have now supplied a further 278 actuators for the same project for a wider variety of valves.
Zoedale are the UK distributor for the Bernard Controls range of high quality electric...
Valve User Issue 25
Variable speed technology selected for Taiwan scheme
SIPOS Aktorik’s specialist variable speed actuators are supporting modernisation of the Hsinta power plant in Taiwan. Originally built in 1994, Taipower’s natural gas-fired combined-cycle scheme is undergoing an upgrade and an initial 60 SIPOS HiMod actuators are being installed to replace early actuation technology.
Representing Taipower’s lar...
Valve User Issue 25
AUMA flow control supports major environmental scheme
Electric actuators manufactured by AUMA are assisting flow control processes at a major wastewater treatment works (WwTW) in Tullamore, Ireland which has been hailed as a landmark environmental scheme. The project is the latest in a series of EPS Group contracts for the global actuation technology specialist: other sites that have adopted the compa...
Valve User Issue 25
Retrofit upgrade at Turkey’s largest refinery chooses Rotork valve automation
Rotork valve actuation and two-wire digital control technology has been chosen for a major upgrade and automation programme at the Tupras Izmit refinery in Turkey.
Tupras is Turkey’s largest industrial company and leading refiner, operating four refineries of which Izmit is the largest. First opened in 1961, production at Izmit of commodities i...
Valve User Issue 25
SIPOS actuators’ pioneering approach to presentation
The time delay between introducing a new product series and updating documentation has been addressed at SIPOS Aktorik. Parts inevitably have to be produced before they can be photographed. A rapid solution initiated by the company’s documentation team eliminates any delay producing illustrations. SIPOS 5 images are now produced directly from digit...
Valve User Issue 24
Rotork actuators on the Royal Navy’s new aircraft carriers
Hundreds of Rotork electric actuators are being installed on the Royal Navy’s giant new aircraft carriers HMS Queen Elizabeth and HMS Prince of Wales, both of which will be 920ft long and weigh in at 65,000 tonnes full displacement.
Each ship will be home to more than 1200 Rotork actuators, mostly operating ball and butterfly valves on duties e...
Valve User Issue 24
All-electric Rotork valve control package selected for offshore wind farm
Rotork is supplying an all-electric valve actuation package encompassing isolating, regulating and modulating actuators with two-wire digital control for the DanTysk offshore wind farm in the North Sea.
Almost one hundred Rotork quarter-turn electric actuators will control butterfly valves on the DanTysk transformer platform, situated 70 kilome...
Valve User Issue 24
The Use of Brushless DCV Motors in Electronic Valve Actuators: Prepared by: Earnest Carey, Jr. and Scott Wilkerson
Since 1929, electric valve actuators have been used for valve actuation, using both AC and DC volt motors. Motor technology remained virtually unchanged for years until the 1960s, when the evolution of brushless DC (BLDC) motor technology progressed to make them commercially attractive. However, it was not until the mid-2000s that BLDC technology m...
Valve User Issue 24
Sophisticated SIPOS actuation supports Moscow heating scheme
With temperatures dropping as low as -40°C, thousands of multi-flat dwellings in Moscow need heating for a large part of the year. A modernisation programme incorporating SIPOS Aktorik’s electric actuators is updating a district system to ensure that effective year round heating is provided to the Russian capital’s residents.
Over thirty SIPOS ...
Valve User Issue 24
Plant includes leviathan valves
Situated on the coast at Chixi Town, south of Guangzhou in China’s Guangdong Province, the Taishan Nuclear Power Station is expected to be one of the largest in the world. It is also China’s first nuclear power plant to adopt the European EPR (European Pressurised Reactor) third generation reactor technology. The first phase of the project involves...
Valve User Issue 23
Polymer manufacturing turns to Rotork for improved control valve performance
The introduction of Rotork CVA all-electric control valve actuation technology has improved the efficiency of the production process for a leading polymer manufacturing company in Australia.
Samos Polymers is a world-class manufacturer of polyurethane systems, producing a diverse range of cast elastomer prepolymers including spray polyurethane ...
Valve User Issue 23
Specialist actuation skills showcased by SIPOS
SIPOS Aktorik will present its range of actuation products and services at the Valve World Expo (booth 3D36). Capabilities in specialist solutions will be showcased including the company’s pioneering variable speed actuation technology. Other advancements in actuation displayed by SIPOS will include the HiMod extreme precision actuator along with a...
Valve User Issue 23
SIPOS’ rapid response to South American water shortage
Bottlenecks and shortages in water supply to the Colombian City of Valledupar, (870km north of Bogotá), required urgent attention. Within two weeks, SIPOS Aktorik responded with the supply of electric actuators to aid automation of the water treatment works.
EMDUPAR (Empresas de VALLEDUPAR), the water supplier to the City, looked to SIPOS Aktor...
Valve User Issue 23
New generation treatment plant selects Rotork for electric control valve actuation
Rotork’s innovative CVA electric control valve actuation technology has been selected for a demanding duty involving continuous modulation at what is described as a “new generation” waste water treatment plant in southwest France.
The plant is one of the largest in France as well as one of the most energy efficient. Designed for increased rainw...
Valve User Issue 22
Colorado water station adopts SIPOS actuators
A new high service water delivery pump station at the East Cherry Creek Valley (ECCV) Water and Sanitation district in Colorado incorporates pump and surge anticipation / relief valves supported by programmable actuators from SIPOS Aktorik.
The membrane water treatment facility, part of the Northern Water Supply Project, uses reverse osmosis tre...
Valve User Issue 22
Rotork flow control technologies specified for major petroleum storage expansion project in the UAE
Rotork electric and electro-hydraulic valve actuation and control technologies have been specified for a major petroleum storage tank farm expansion project at Fujairah in the United Arab Emirates.
The project at the Emarat Fujairah Terminal has included the construction of ten new storage tanks, increasing the site’s total capacity from 50,000...
Valve User Issue 22
SIPOS commission confirmed for RWE coal plant
SIPOS Aktorik has received confirmation of the commissioning and DCS integration of more than 2,000 SIPOS Aktorik electric actuators at RWE Eemshaven in the Netherlands. Manufactured, supplied, installed and supported by SIPOS, the devices will play a key role automating valves at the coal fired power plant.
The prestigious Eemshaven project rep...
Valve User Issue 22
