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  • Memorsealy - A World Leader in Valves - Velan - Velan
    Memorsealy - A World Leader in Valves - Velan - Velan

    Valve testing API 598 Fire safe testing API 607, ISO 10497 Velan Memoryseal ® ball valves can be equipped with electric, pneumatic, hydraulic or gear actuators See pages 35 to 43 for actuator sizing, torque requirements and technical data For Securaseal metal-seated ball valves,

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  • Breakaway torque for Trunnion Ball valve, different seat ,
    Breakaway torque for Trunnion Ball valve, different seat ,

    I am new to valve industry, our sales threw a question to me regarding if they are changing seat material from, how much torque will added to actuate the valve 1) NPS 16, class 600, Trunnion ball valve, seat material changing from Nylon to Peek, what might be the approximate breakaway torque increase? (I assume as 15%) 2) What will be the .

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  • News | MOGAS
    News | MOGAS

    Aug 17, 2015· The aerodynamic torque is proportional to the product of aerodynamic torque coefficient (C t) and valve pressure drop (Δp) The peak of C t curve commonly occurs near the full open position in conventional ball valves, but the peak in aerodynamic torque may occur at a different valve position, depending on the valve pressure drop Achieving a .

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  • Ball Valve Torques and Actuator Selection Information
    Ball Valve Torques and Actuator Selection Information

    determining the actual ball valve torques to be used for actuator selection The following pages contain valve torque tables for the various Sharpe Valve models, along with Media and Service Factors which must be considered Ball Valve Torques: The torque values listed in the following tables are breakaway torques from the closed position

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  • ISSN: 2278 7798 International Journal of Science ,
    ISSN: 2278 7798 International Journal of Science ,

    [4] Reza Azizyan2, Gholam Hossein Akbari3 CFD analysis of the ball valve performance in presence of cavitation published in life science journals Life Science Journal 2012;9(4) [5] OCZienkiewiez, The Finite Element Method, Tata McGraw Hills, 2nd edition, 44-71 2007

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  • SIZING AND SELECTION OF ACTUATORS FOR VALVES
    SIZING AND SELECTION OF ACTUATORS FOR VALVES

    Oct 27, 2013· SIZING AND SELECTION OF ACTUATORS FOR VALVES 1 SIZING AND SELECTION OF ACTUATORS FOR VALVES NIDHIN MANOHAR 2 Different types of actuators Advantages & Disadvantages Selection of Actuator Sizing of Actuator Performance Tests on Actuators Force / Torque Demanded by valves SRammohan, CRE, Fluid Control Research Institute

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  • Adjust-O-Seal
    Adjust-O-Seal

    Torque Values 9 Testing 10 Available Options 10-11 , Self-Cleaning Ball Valve 32 Igenix® Pinch Valves 33 Flush Tank Sampling Valve 34 Spray Ball Valve 34 , opposite stem 56 DA80 psig actr & GP LS & Sol 23 DA80 psig actr & GP LS & Sol Z CRN bolting G (1) ½” BWTE on center 90° from stem 24 DA80 psig actr & XP LS .

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  • KITZ INDUSTRIAL BALL VALVE OPERATING TORQUES (inch-lbs)
    KITZ INDUSTRIAL BALL VALVE OPERATING TORQUES (inch-lbs)

    Use the SCTC/UTC torques for all SCTS/UTCS valv 5 For regular bore trunnion valves, use the torque for the next smallest full bore valve 6 For 150/300 SCTBM/UTBM series valves on Pages 4-5, torque values are for both non-firesafe and firesafe , KITZ INDUSTRIAL BALL VALVE OPERATING TORQUES (inch-lbs) KCA021005-REV04 2 VALVE SIZE 100 150 .

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  • ORBIT Valves - productsslb
    ORBIT Valves - productsslb

    that typically creates uneven seat wear in ordinary ball, gate and plug valv The core then rotates to the fully open position The absence of seal rubbing during both opening and closing means easy, low-torque valve operation and long-term reliable performance When valve ,

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  • Ball valve, Torque Calculation - Pipelines, Piping and ,
    Ball valve, Torque Calculation - Pipelines, Piping and ,

    Jan 09, 2010· There are a lot of factors that come to bear on the torque on a ball valve The upstream pressure pushing the ball into its seat is a factor that determines the torque needed to open the valve against shut off pressure The presence or potential for any particulates in the fluid can increase the torque requirement

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  • 370D6 Series Trunnion-Mounted Ball Valves
    370D6 Series Trunnion-Mounted Ball Valves

    The above values are new valve torque values, where P is the maximum operating gauge pressure in psi of the valve The above torque values do not contain service factors Soaking effects, particle matter, or both in the valve may cause an increase in the torque The reseat torque is equal to ~80% of the break torque

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  • Breakaway torque calculations for a ball valve?
    Breakaway torque calculations for a ball valve?

    There are different frictions in the ball valve aganist openning torque which are packing friction, seat friction and unballanced forc I am looking for a sample of torque calculations for a .

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  • VALVE TORQUE - Islip Flow Controls
    VALVE TORQUE - Islip Flow Controls

    torque again increases but to an amount less then the valve breakaway torqueThis torque is known as the valve ending torque Due to the variable operating torque of a ball valve when scotch yoke type or spring return actuators are used IFC recommends factoring the breakaway torque by 07 for the running torque and 08 for the valve ending torque

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  • 33 Design Basis Valve Stem Torque converted to linear ,
    33 Design Basis Valve Stem Torque converted to linear ,

    33 Design Basis Valve Stem Torque For rotatingstem valves (ball, plug, - and butterfly), the torque needed to operate the valve is a summation of two loads: • stem torque, that is, the reaction torque in Loads not dependent on pressure or flow such as bearing loads and packing loads • ,

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  • The importance of maximum allowable stem torque in valves
    The importance of maximum allowable stem torque in valves

    The result of this calculation shows that the MAST in rectangular section of stem is less than the actuator torque , Divya S, Rajesh R, Selvakumar V (2014)Operating torque in ball valves: a .

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  • Industrial DYNATORQUE 90 Worm-Gear Operators ,
    Industrial DYNATORQUE 90 Worm-Gear Operators ,

    Our industrial DYNATORQUE 90 worm-gear operators are designed for use with valves and dampers as well as most other quarter-turn applications requiring a self-locking mechanism Cameron's flexible manufacturing process allows us to offer both standard construction and custom configurations for customer-specific applications

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  • Dynamic Torque Affects on Actuator Sizing - MOGAS
    Dynamic Torque Affects on Actuator Sizing - MOGAS

    Jun 15, 2015· Severe service ball valve manufacturer, MOGAS Industries, is studying the impact of dynamic torque and its affect on accurate actuator sizing At the MOGAS R&D facility, modified dynamic torque calculations are being developed to best understand the impact it has on flow conditions, pressure drops, flow rate and torque outcome The current .

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  • Copeland
    Copeland

    Ball pressure torque Ball tare torque Run Torque and Valve Ending Torque Run torque is a obtained by adding all of these values except ball tare torque The service factor is used as a multiplier to both factors in order to estimate the required torque under actual service conditions , Torque Calculations Copeland ( Copeland Industries .

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  • Torque Calculator | Torque Calculation | Solon Manufacturing
    Torque Calculator | Torque Calculation | Solon Manufacturing

    Solon Torque Calculator Tool Use our new torque calculator web tool below to determine a calculated torque value based on inputs relative to bolt type, size, lubricant/condition and load This user-friendly, no-cost tool will provide you with a recommended Solon torque calculation and help further assist you with your Solon Belleville Spring .

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  • ISSN: 2278 7798 International Journal of Science ,
    ISSN: 2278 7798 International Journal of Science ,

    This paper consist of design & analysis of trunnion mounted ball valve The project work consist of verification of design of ball component of ball valve , away Torque 2 Stem material used is AISI ss 410 / 13 % Cr Steel , valve performance in presence of cavitation published in life science journals Life Science Journal 2012;9(4)

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  • Valve torque requirements - Torque is more than meets the eye
    Valve torque requirements - Torque is more than meets the eye

    Apr 09, 2018· When considering the torque values to operate the valve, one must consider how much torque is required to fully open and fully close the valve If the valve gets stuck in mid function of opening or closing the valve a safety factor must also be considered sizing the actuator

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  • AWWA Rubber Seated Ball Valve - Valve Manufacturer
    AWWA Rubber Seated Ball Valve - Valve Manufacturer

    Pratt / AWWA Rubber Seated Ball Valve , seating, unseating torque, lower maintenance, simplified operator controls The Pratt rubber-seat ball valve fully complies with AWWA standard C507 for tight-closing, shaft-mounted ball valv It is a proven, rugged, through-port rotary

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  • DBB Valves: Floating vs Trunnion Ball Design – Taurus ,
    DBB Valves: Floating vs Trunnion Ball Design – Taurus ,

    Jul 04, 2017· But a ball valve has to be operable, even under high differential pressure When high forces are acting on the sealing elements, the friction between them is high This means that the operation torque and the wear on the parts are also high If you only look on the high operating torque, you could take measurements like very long handles, or a .

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  • Worcester Controls
    Worcester Controls

    3 Determination of Valve Torque Standard Reduced Port Ball Valves The valve torque curves (pages 4-11) show the torque requirements of 1/ 4" through 10" Worcester ball valves as a function of differential pressure across the valve when the ball is in the closed position

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  • Modern Tools for Sizing Control Valves and Actuators | Valin
    Modern Tools for Sizing Control Valves and Actuators | Valin

    Rated actuator torques and valve torque requirements are usually conservative Only a small safety factor is necessary, especially for on-off valves where the main consideration is getting the valve in and out of the seat The ball valve torque requirement is similar in shape to that of the butterfly valve

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  • CONCEPTUAL DESIGN AND ANALYSIS OF HIGH PRESSURE ,
    CONCEPTUAL DESIGN AND ANALYSIS OF HIGH PRESSURE ,

    other factors The design calculation is done for sealing cup, ball, connection adaptor, valve housing and operating lever The maximum stress and deflection is calculated for different sealing cup materials under high pressure The torque required to operate the valve, which includes breaking torque, running torque ,

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  • Unique Operating Dynamics of Trunnion-Mounted Ball Valves
    Unique Operating Dynamics of Trunnion-Mounted Ball Valves

    For a very long time, the idea has existed that a trunnion-mounted ball valve can be opened under full differential pressure if the piping system can withstand the rapid increase in pressure and the forces induced by it As valve sizes and operating pressures increase, however, several factors need to be considered if that valve is opening with little or no pressure downstream

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  • Butterfly & ball valve automation | Processing Magazine
    Butterfly & ball valve automation | Processing Magazine

    Valve suppliers typically offer breakaway torque relative to the nominal pressure of the valve In the case of the butterfly valve and the large ball valve, it is also common to show breakaway torque relative to reduced media pressures because this will help properly size the actuator for the specific application Safety factor application

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  • American-BFV® Butterfly Valves Manufacturers
    American-BFV® Butterfly Valves Manufacturers

    The American-BFV® Butterfly Valves provide long life, low headloss and trouble-free performance The butterfly valve of choice for shut-off service in water systems We are premiere Butterfly Valves ,

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  • Actuated Ball Valve Selection Guide
    Actuated Ball Valve Selection Guide

    4 Ball Valves and Quarter-Turn Plug Valves ACTUATED BALL VALVE SELECTION Operating Torque Operating torque for a Swagelok 40 series ball valve is influenced by: 1cycle frequency packing material system pressure system temperature system media The tables and calculations on this page can be used for 2- and 3-way 40

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