Actuator sizing calculation May 9, 2020 · Learn how to size the right linear actuator for your application. The following charts will help you gather and document the information you will need to properly size your actuators. Jan 19, 2022 · Selecting the right linear actuator may require you to make several calculations in terms of the force and stroke length. Sep 12, 2019 · This paper presents a case study of breakaway torque (break to open) calculation and actuator sizing for a full-bore ball valve in pressure Class 300 equal to 50 barg nominal pressure and 22Cr duplex body material. Determine the power supply media: pneumatic or hydraulic, and the minimum/maximum supply pressure(s) at the actuator. 2) P1 Firgelli's Linear Actuator Calculator is a real-time tool to help you determine the optimal stroke length & force required for your application. org/10. The equations in this section use the following variables: AL = Lower cylinder area, in² AU = Upper cylinder area, in² AS = Area of the seat, in² (see Table 16-IV or equation 16. This is very useful for determining the correct cylinder bore, as well as the FRL size (based on flow) and the necessary air supply capacity. On-off service is for a valve that is used for shut-off. pdf - Free download as PDF File (. Sizing a linear actuator and estimating its life can be done in a few easy steps. , spring & diaphragm, single- or double-acting piston); 2) actuator fail action on loss of instrument signal; and 3) actuator spring rate and bench set. Bettis RPE-Series actuators are commonly used to operate butterfly-, ball- and plug valves. Jan 19, 2022 · Selecting the right linear actuator may require you to make several calculations in terms of the force and stroke length. Visit the post for more. Selection Calculations Linear & Rotary Actuators Selection Calculations For Linear & Rotary Actuators First determine your series, then select your product. Other valves may differ according to manufacturing standard or published CV his module will calculate the volume of both ends of a cylinder, maximum suggest load for each direction, and the flow for each direction. :(0123456789) SN Applied Sciences (2019) 1:1207 | https://doi. This guide covers key criteria: force, stroke length, and speed. For Immediate Service in Europe | Call: +39. 3) AR = Area of the seat retainer bore, in² (see equation 16. Click on the button below to open an Excel Spreadsheet. Click to be guided through a few calculations. Size an actuator correctly by understanding torque Apr 16, 2013 · With on/off services, only questions 2 and 3 must be answered. Find formulas and useful tips. g. 1007/s42452-019-1248-z Review Paper • Pneumaticactuatorsrunoncompressedair,whichisa Sizing and Selection Made Simple. However, the tools available to valve users have changed and improved significantly over time. A popular mounting position for our customer’s linear actuators is under the load it is required to push. Additional aspects to consider in actuator sizing, but that are outside the purview of this article, include 1) type of actuator (e. Modulating valves usually require more torque than simple on-off valves. Actuator Sizing Application Jan 28, 2017 · Modulating valves are rarely fully open or fully closed. SelectPro is a quick and simple tool for accurately sizing and selecting valves, actuators, sensors and replacement solutions. 0000 or Email: sales@emmetech. This Windows-based software will significantly reduce user effort associated with manual actuator sizing and more importantly – reduce sizing errors. Cylinder or vane actuators provide remote operation of valves using hydraulic or pneumatic power (Figure 3). Please enable JavaScript to continue using this application. 039. In the past, valve sizing calculations were performed with specially designed slide rules. Check the Required Specifications Vol. Lay a straight edge on the GSL-Actuator-sizing-calculation. Valves conforming to API-602 have reduced ports indicated in this standard. AutoSize is a comprehensive actuator sizing tool supporting multiple Flowserve brand pneumatic and electric actuators. Login or Create Account Toll Free: 866-226-0465 Actuator Sizing Calculation for Gate & Globe Valves Actuator sizing Gate Globe Valve R1 - AS Notes (1) API-600 and API-603 Gate Valves must have full ports according to Annex A form ASME B16. The document provides a method for calculating the required actuator sizing for gate and globe valves based on valve parameters such as bore diameter, differential pressure, stem diameter, and travel speed. Understand dynamic and static forces, calculate exact force requirements, and consider power needs and application-specific factors for optimal performance. Marwin Valve Actuator Sizing Program VALVE/ ACTUATOR TORQUE SIZING ANALYSIS CHART FOR TRUNNION BALL VALVES PISTON STYLE SCOTCH YOKE ACTUATOR SIZING CALCULATIONS SHEET LARGER ACTUATORS 2500Nm TO 17000Nm SPRING RETURN (SET SPRING TO CLOSE) *1 PTFE/RPTFE seats can require more torque to unseat after a period of time due to its fluidity & memory. 1. Double-Ported Valves: N R = 12200 Q C V ν CS Nomograph Procedure 1. For butterfly and eccentric disk rotary valves, use the liquid flow rate Q scale designated for double-ported valves. pdf), Text File (. Required Data Jan 19, 2022 · Selecting the right linear actuator may require you to make several calculations in terms of the force and stroke length. In general, cylinder actuator sizing is based on the mechanical advantage, efficiency and minimum supply pressure. The program will calculate the proper size Marwin electric and pneumatic actuators (and gear operators) for the valve selected. Some people want us to size their actuator, but many people prefer to size their own actuators. Oct 6, 2020 · CYLINDER ACTUATOR SIZING. SelectPro’s Features Include: Export Builder – Design an export to fit your needs; Reference Documents – Locate information in one central location Select any of the Marwin ball valve series, size, seat material and service factor from several drop down menus. Sizing is the selection procedure to select the right size of actuator on a valve with a given torque characteristic. 1) AStem* = Plug stem cross-sectional area, iné (see Table 16-IV or equation 16. To target these types of applications, our engineers have devised an electric actuator calculator tool that will use your input parameters to recommend the best actuator for your application. Nomograph Equations 1. Valve sizing and proper application of control valves have always gone hand-in-hand. It will either be used fully closed or fully open and will not stop during mid-stroke. Using this information, select the applicable torque rating table and see the appropriate following examples. . txt) or read online for free. Single-Ported Valves: N R = 17250 Q C V ν CS 2. Select the actuator that you will use based on the following flow charts: Selection Procedure An overview of the procedure is explained below. 34. 902. This data sheet gives brief samples on how to size actuators and which data is needed. com Actuator Sizing Calculation for Gate & Globe Valves GSL-Actuator-Sizing-Calculation R1 - AS Information required Examples 1 Bore diameter at seat (use actual diameter if known) 12 inch 3 inch 3 inch 2 Differential pressure, using 30psi minimum, and line psi if higher 200 psi 2250 psi 2250 psi flow rate Q scale designated for single-ported valves. job yrfzrq pdqnnt xopse tthlcre laapzh vxqbo wvyrnsgh ebioluua mlv ktedlwc qetbye rzl jvjsh qyjni