valve actuator Articles

  • Intelligent valve actuators assist compliance

    The stringent regulation of the water and waste treatment industry demands more efficiency and improvements in process performance. A key area is the elimination of unexpected breakdowns and interruptions to processes which can have quality, environmental and financial ...


    By Rotork plc

  • Subsea valve actuation – reliability in depth

    Subsea valve actuation is an important part of Rotork’s flow control activity. With an installed base dating from the early 1990s, operating at depths down to 2500 metres, Rotork Fluid Systems is familiar with supplying hydraulic actuator products to meet stringent subsea ...


    By Rotork plc

  • Intelligent valve actuators in the mining industry

    Overview In mining, as in other hazardous industries, flow control equipment makes a vital contribution to efficiency and safety. Numerous operations, both on the surface and underground, depend upon the reliable control of fluids and gases which is generally achieved using valves, actuators and associated equipment. Underground areas of application include pumping stations, ...


    By Rotork plc

  • Fast network control for valve actuators

    Reliable and comprehensive data communications are essential elements in the modern process plant. Plant managers demand more information, more quickly than ever before. Process operators must have the ability for full control at all times, 24 hours a day, 365 days of the year. Maintenance managers need the information required for efficient asset ...


    By Rotork plc

  • Sizing and Selection for Diaphragm Actuated Control Valves

    In order to size a valve correctly one must be sure they understand what the valve is required to do, what the system parameters are, and then use this information to pick the valve that will do a proper job while keeping the economic desires in mind.   While graphs, charts and even software calculators are necessary, the person responsible for sizing needs to have a clear ...


    By Singer Valve Inc.

  • Asset management for actuated valves in the 21st Century

    The key benefit of effective asset management for the actuated valve end user is an economic one. The implementation of preventative maintenance as the main activity in the asset management programme quickly translates into cost savings for the plant operator. This and many other benefits are facilitated and enhanced by the increased functionality inherent in modern intelligent electric valve ...


    By Rotork plc

  • Valve actuation and control in the modern refinery - Case Study

    Introduction The Reliance refinery at Jamnagar in India is one of the largest single refinery sites in the world and virtually all of its valves are motorised with Rotork actuators. Almost 3000 Rotork IQ intelligent valve actuators were installed during the construction of the original refinery, tank farm and power station in the late 1990s, together with a Rotork Pakscan 2E two-wire ...


    By Rotork plc

  • Valve actuators: vital elements for reliability and plant safety

    In any hazardous area installation the requirement for safety is paramount and recent accidents at refinery and tank farm sites offer vivid illustrations of the catastrophic consequences of such events. Valve actuators have an important impact on safety as vital components for the movement and isolation of bulk fluids, providing not only the muscle to open and close the valves but also the ...


    By Rotork plc

  • Wireless monitoring and control of electric valve actuators

    Overview Wireless monitoring and control offers a great opportunity for many facilities, in a wide variety of applications and industries, to gain significant benefits over the traditional hard-wired methods of achieving valve actuator connectivity. ...


    By Rotork plc

  • Control valve actuators: Their Impact on control and variability

    Electric control valve actuators provide excellent performance and are ideal for oil and gas wells in remote production fields. Instrument air supply systems are costly and require significant energy to run. If mains power isn't available, an instrument air supply isn't practical, especially when only a few control valves are in use at a location. Solar powered DC electric actuators are ideal for ...


    By Rotork plc

  • How to Size Diaphragm Actuated Control Valves

    There are many options and several conditions that need to be considered when purchasing the right valve for a job. The more information from the field, the better the choice will be. The ultimate goal is to have the best valve for the job required at the most economical price. While it is not rocket ...


    By Singer Valve Inc.

  • Wireless control for valve actuators - Case Study

    At first glance, wireless network control and its application to valve actuation might not impress many plant engineers as being an earthshaking technological development. Yet, because of the tremendous cost savings that can result, the benefits associated with its adoption can be dramatic – an evolutionary achievement that is likely to change the process plant landscape for decades to ...


    By Rotork plc

  • Choosing DC valve actuators with the lowest energy consumption

    Around the world there is a growing need for automated valve control in remote locations where mains electrical power is not available. For example, effective water management demands efficient and responsive flow control for applications such as groundwater remediation, irrigation and flood prevention. With perceived climate changes introducing more extremes of rainfall or drought conditions, ...


    By Rotork plc

  • Control valve actuators: Their Impact on control and variability

    Sector: Oil & gas Category: Electric actuators Products: CVA Electric control valve actuators provide excellent performance and are ideal for oil and gas wells in remote production fields. Instrument air supply systems are costly and require significant energy to run. If mains power isn't available, an instrument air supply isn't ...


    By Rotork plc

  • Pipeline valve actuators for safety-related duties

    Sectors: Oil & Gas Category: Failsafe Valve Actuation Products: HPG, GO, Electro-Hydraulic (SI) Introduction Pipelines present a number of operational requirements demanding specialised actuation solutions. These include actuation of valves in remote areas, where mains power sources are not ...


    By Rotork plc

  • Top 10 Reasons to Choose a Diaphragm Actuated Control Valve

    Every water system typically consists of piping networks that distribute water from a source or storage reservoir to the end users. This frequently requires miles of piping mains along with pumps systems and controls that all have to be monitored and controlled somehow. Whether this control is to regulate pressure, a level or a flow, this usually will require some form of a ...


    By Singer Valve Inc.

  • Control valve actuators: their impact on control & variability - Case Study

    New electric control valve actuators provide significant control and reduced variability benefits over compressed air actuators in a wide range of process applications, resulting in superior control performance, fewer maintenance problems and energy savings. In a process plant, the general function of a control valve is to restrict the opening of the valve so it affects the flow or pressure of ...


    By Rotork plc

  • Asset management in the water industry - the valve actuator`s perspective

    Sector: Water & Effluent Treatment Category: Electric Actuators, Control Networks, Services Products: IQ3 Standard, IQ Insight 2, Pakscan, Retrofit The water and effluent treatment industries have not been slow to recognise the benefits of effective asset management resulting from the gathering and analysis of accurate and relevant data ...


    By Rotork plc

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