butterfly valve Articles

  • triple offset butterfly valve has a high performance

    Characterized in that : said seat ring by a T -shaped seal ring on both sides of the soft multi-layer stainless steel sheet .     Valve plate and triple offset butterfly valve ...

  • the structure characteristics of wafer type butterfly valve

    ① The unique three-eccentric design of the sealing surface between the friction drive, extending the service life of the valve. ② torque generated by the elastic sealing. ③ ingenious wedge design makes the valve more closed more tightly with the automatic sealing function between the sealing surface with a compensatory, ...

  • Industrial Valves: World Markets Report

    Provides continually updated analyses and forecasts of ball, butterfly, plug, globe/gate, automatic regulatory/control and miscellaneous valve types in 80 ...


    By The McIlvaine Company

  • 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.

  • Healthy Control Valves

    A simple maintenance routine can help ensure trouble-free valve operation. Whether the control valve in your system is the first one that has required maintenance or if you are experienced with maintaining multiple valves in your system, some simple guidelines can help keep them operating at optimal performance. Physically checking all valves at least every 12 weeks is important, assuming that ...


    By Singer Valve Inc.

  • Valve actuation and control in the modern refinery

    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

  • Shannon Creek Dam Switches to Custom Anti-Cav Control Valve Solution

    Shannon Creek Dam and pump station is the core feature of the Regional Water Supply scheme, a joint venture of the Coffs Harbour City Council and the Clarence Valley Council. With an inundation area is 37 square Km, the reservoir provides 30,000 mega litres of supplementary water supply to The Clarence Valley and Coffs Harbour, located on the Mid North Coast of NSW, Australia. This award-winning ...


    By Singer Valve Inc.

  • 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.

  • Rotork fluid power valve actuators in the Chilean pipeline industries

    Introduction Pipeline, storage and associated applications in Chile serve to illustrate Rotork’s scope of supply for fluid power valve actuators in a range of different technologies to suit diverse and challenging environments. LNG import and distribution Rotork fluid power valve actuators have been installed throughout a major new LNG (Liquefied ...


    By Rotork

  • 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.

  • 10 Flags in Valve Chambers that Should Make You Question What Else is Wrong

    I have reached the conclusion, as a lot of you may relate too, that I may be considered one of those “cranky old men”. It shows itself in the little things. Sentences starting with the phrase “when I was your age” or ...


    By Singer Valve Inc.

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

    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

  • We help you to handle highly active ingredients - Case Study

    Pharmaceutical research continues to develop more active ingredients and potent compounds. Thus the demands on containment in production installations are increasing and operator protection becomes even more important. The basic design of the AVA conical mixer and dryer allows for easy and effective containment. They are, by their very nature, self-contained systems. Agitator shaft bearings and ...


    By AVA - Huep GmbH u. Co. KG

  • Transient and surge related pipe bursts, water loss and damage prevention

    Pipe bursts as a result of transients and surges within a piping network are very common problems throughout the world. Not only are the maintenance costs of these repairs extremely expensive, but when you add in possible litigation for third party damages, combined with the potentially significant value (cost) of the lost water, you can quickly realize the significance of what may appear simply ...


    By Singer Valve Inc.

  • Rotork actuators with profibus

    Introduction Rotork IQPro intelligent electric actuators with Profibus two-wire digital control provide an adaptable, reliable and economical solution for automated valve monitoring and control, as illustrated by examples in the UK water and sewage treatment industries. Two recent projects undertaken by Wessex Water serve to illustrate the benefits of adopting Profibus-enabled ...


    By Rotork

  • Warning! Beware stormwater product

    Warning! Beware of a storm water insert sold under the trade mark "Safe Drain".  This product holds water in the open position.  Standing water can present both odor and health issues.  In 2004, Cameron M. Colson patented a leading storm water drain insert that utilized a butterfly valve mounted inside the storm water insert that aided in spill control.  This Design was ...

  • Development and Implementation of an Alternative Emissions Monitoring Program for Carbon Monoxide Compliance for Fluidized Catalytic Cracking Unit CO Boilers

    This paper presents the results of an alternative emissions monitoring test program for the Fluidized Catalytic Cracking Unit (FCCU) CO boilers at major oil refinery. Alternative emissions monitoring systems can be used in lieu of other compliance monitoring techniques (e.g., periodic emissions testing, continuous emissions monitoring) to relate monitored operating conditions which might indicate ...


    By Mostardi Platt Environmental

  • Development and Implementation of an Alternative Emissions Monitoring Program for Carbon Monoxide Compliance for Fluidized Catalytic Cracking Unit CO Boilers

    This paper presents the results of an alternative emissions monitoring test program for the Fluidized Catalytic Cracking Unit (FCCU) CO boilers at major oil refinery. Alternative emissions monitoring systems can be used in lieu of other compliance monitoring techniques (e.g., periodic emissions testing, continuous emissions monitoring) to relate monitored operating conditions which might indicate ...


    By Mostardi Platt Environmental

  • Taos, New Mexico SORB 33® Arsenic Removal Case Study

    Site BackgroundThe Town of Taos, located in northern New Mexico and with a population of 8,000 was awarded an arsenic removal treatment system as part of the US EPA’s Arsenic Removal Demonstration Program in January, 2005. The town had a new well, storage tank and booster pump system that was scheduled to be connected to the Town’s distribution system and placed into service only after the ...


    By De Nora Water Technologies

  • Rotork is ‘one-stop actuation shop’ for storage tank expansion project - Case Study

    Overview Rotork has demonstrated its ability to be a one-stop shop for valve actuation products and services for an oil storage tank expansion project in Holland. Rotork's activities have encompassed the supply of intelligent electric actuators for isolating, modulating and failsafe valves, digital control systems, valve gearboxes, valve adaptation, workshop motorisation, on-site ...


    By Rotork

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