hydraulically operated valve Articles

  • Electro-hydraulic actuation delivers the solution for remote operated shut-off valves

    An extensive review of safety measures recommended by the MB Lal Committee in India, following an accidental fire at the IOCL Jaipur Terminal, has resulted in the introduction of electro-hydraulic failsafe actuators for critical tank farm Emergency Shutdown (ESD) applications. These valves, known as ROSOV (Remote Operated Shut-off Valves), now provide tank overfill protection at the majority of ...


    By Rotork plc

  • What You Need to Know about Electronic Automation of Hydraulically-operated, Diaphragm-actuated Control Valves

    Hydraulically controlled, diaphragm-actuated control valves are the mainstay of the waterworks industry to control pressure, flow, level, pump control, and at times to meter. These automatic control valves are controlled by pilots to do specific tasks and are mainly single-set-point systems. With the need to remotely actuate and control the valves and the applications becoming more complex, ...


    By IWA Publishing

  • Tank terminal demonstrates the electrically operated solution for ESD Valves - case study

    Overview Since the disastrous fire at the Buncefield fuel depot in 2005, much has been done to ensure that such a catastrophic accident should not happen again. Led by COMAH (Competent Authority/Industry Standards Task Group), safeguards have been put in place by the petroleum industry to provide additional safety and environmental protection to tank storage installations. Endorsing the ...


    By Rotork plc

  • Oil Analysis for Hydraulic Systems

    Hydraulic systems are used in industrial, mobile and aviation applications to transmit power to operate equipment. They are incredibly efficient, compact, and lightweight relative to a mechanical equivalent. Hydraulic fluids transmit force in the system, and as such are carefully chosen by the system maker. Chemical stability, high flash and fire points, viscosity, and oxidation resistance are ...


    By Spectro Scientific

  • Valuing Global Valves

    Control valve solves flow control & pressure challenges Donnacona, Quebec, Canada, is an industrial town just west of Quebec City. The town’s water treatment plant was built in 1969 and has since undergone three major retrofits: new high-pressure pumps and an electrical upgrade in 1995; a filter bottoms change in 2000; and a river water intake upgrade in 2005. The plant includes ...


    By Singer Valve Inc.

  • Water hammer (hydraulic shock) causes and preventative measures

    Water hammer (or hydraulic shock) is the momentary increase in pressure inside a pipe caused by a sudden change of direction or velocity of the liquid in the pipe. Water hammer can be particularly dangerous because the increase in pressure can be severe enough to rupture a pipe or cause damage to equipment. Therefore, the proper opening and closing of valves is fundamental to safe pipeline ...


    By BakerCorp

  • 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

  • BEIYI BYCS Series Excavator Hydraulic Shear

    BEIYI BYCS Series Excavator Hydraulic Shear The Engineering BEIYI Machinery BYCS Series Excavator Chick Shear, Undertake The Task Of The Demolition Of Reinforced Recycled, BYCS Series Excavator Chick Cut ...


    By lydite trading company

  • BEIYI BYCS Series Excavator Hydraulic Shear

    The Engineering BEIYI Machinery BYCS Series Excavator Chick Shear, Undertake The Task Of The Demolition Of Reinforced Recycled, BYCS Series Excavator Chick Cut Site Construction Is Stable, Convenient Operation And Advanced Hydraulic System, The Regeneration Of The Professional Valve Standard Hydraulic System To Save 50% Of ...

  • Mathematical modelling of a hydraulic controller for PRV flow modulation

    This paper describes the development of mathematical models, which represent static and dynamic properties of the AQUAI-MOD® hydraulic controller coupled with a standard pressure reducing valve (PRV) as well as a new experimental set-up for testing the controller and calibrating and validating the models. The purpose of the AQUAI-MOD® controller is to modulate the PRV outlet pressure according to ...


    By IWA Publishing

  • Testing Validates Environmentally Friendly Hydraulic Fluids

    Operators seeking next-generation hydraulic fluids typically expect to find products with a low-impact environmental footprint that meets both current and future regulations without skimping on the high-performance requirements some systems need. As a possible solution, EnBio Industries offers its EnBio fluids, a polyalkylene glycol-based lubricant with five characteristics that ...


    By EnBio Industries

  • 5 hydraulic equipment mistakes you might be making

    When dealing with hydraulic equipment, there are many intricate pieces that impact the effectiveness of these machines. There are many components of hydraulic equipment, and it is important that they all run smoothly. Here are five mistakes you may be making and how to correct them. 1. Changing the Oil If the base oil is degrading ...


    By A&S Hydraulic

  • 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

  • Electro-hydraulic actuators deliver improved safety at India’s tank farms - Case Study

    Following an accidental fire at the IOCL Jaipur Terminal, an extensive review of safety measures recommended by the MB Lal Committee has resulted in the introduction of failsafe actuators for critical tank farm applications. These valves, known as ROSOV (Remote Operated Shut-off Valves), now provide tank overfill protection at the majority of storage facilities owned by the Indian oil industry. ...


    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

  • Divers install eccentric plug valve in reservoir tunnel

    A team of specialist divers – working in a cramped, water-filled tunnel 20 metres beneath the surface of a reservoir – has just completed installation of an eccentric plug valve to control water flow.The valve and associated equipment has been supplied to United Utilities by Viking Johnson (http://www.vikingjohnson.com), a world leader in the supply of pipe joints ...


    By Viking Johnson

  • Replacement Fill Control Valves with Electronic Flow and Metering Improve Pressure, Stop Leakage and Prevent Valve Failures

    The City of Modesto, California is situated 90 miles east of San Francisco and has approximately 200,000 residents relying on 200,000 of gallons of water a day. The City needed to upgrade three water storage tanks that hold approximately 750,000 gallons each. After years of using motor operated valves to fill water storage tanks, the city recognized that there were just too many problems. ...


    By Singer Valve Inc.

  • How a Specialized Automatic Control Valve Solved Flooding

    The Colombian area of Antioquia creates much of its clean power from hydropower plants along the Guadalupe River. The Guadalupe IV hydroelectric plant generates power with three vertical axis turbines that discharge water below the river level. To prevent flooding, however, the plant needed a solution that ensured the ejector ...


    By Singer Valve Inc.

  • FCCU-Special Valves-Increase the process performance and reliability

    Created in 1942 by a French engineer (Mr Eugène HOUDRY), the FCC process still the heart of each refinery in the world. This catalytic process contributes to the bigest volume of gasoline but it is probably the most critical and complex process in a refinery. Maintenance operations cost a fortune, and this is mainly due to the installed valves… Licensors, EPC and End-Users have well ...


    By Guichon Valves

  • Forming DMAs in a water distribution network considering the operating pressure and the chlorine residual concentration as the design parameters

    Dividing a water distribution network (WDN) in the optimal district metered areas (DMAs) formation is one task that usually troubles water utility managers. The present paper utilizes optimization methods to achieve desired segmentation conditions in terms of (a) operating pressure reduction, thus reducing the system's real water losses and (b) residual chlorine concentration reduction thus ...


    By IWA Publishing

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