By properly sizing an actuator to a valve for a specific application, performance is guaranteed and economies are gained. They travel to customers giving lectures on topics such as electric versus pneumatic actuation, epa emission rules and design methods to reduce valve leakage, fire safe system design, pressure vessel codes and valve specifications. In the past, control valve sizing calculations were performed with specially. Valve sizing charts show the maximum shut off pressure for each size valve with each size actuator. Hydronic balancing and heating control in one valve. Together with detailed product information including for cad support, the appropriate tools for sizing, simulation and selection are conveniently assigned to every product by part number or order code.
Metso shut off valves combined with intelligent valve controllers provide diagnostic capabilities and increase plant safety. When the largest gas turbine manufacturer in the world needed a customengineered control valve that was hyperaccurate, able to choke flow at various travel positions, and had global service availability, emerson took. Metso valves and automated assemblies improve performance, maximize uptime, and decrease costs. Get a first impression of the various features and functions of trovisview.
Compatible with microsoft windows xp or higher, mfsizing is comprehensive choke valve and actuator sizing software for your computer. Calculate valve authority from the choice of valve. You will find further free resources and software tools to simplify sizing in the festo product area. The trovisview configuration and operator interface. Rotork design and manufacture electric valve actuators, pneumatic valve actuators and hydraulic valve actuators and gearboxes to manage the flow of liquids, gases. Get the valves that are reliable today, tomorrow, and every day. Modern tools for control valve sizing processing magazine. You may download an excel spreadsheet for our actuator sizing program. The larger this value, the higher the flow rate through the valve will be at a given pressure drop. Whether you size a valve yourself, or you get someone else to do it, accuracy is critical. Common pneumatic rotary actuator motion conversion mechanisms, their typical. See section 22 for more details on computeraided valve selection.
Fast and reliable on off valve selection this onoff calculation tool allows the selection of all metso metal and softseated onoff valves with advanced but easytouse actuator sizing including adjustable safety factor and torque key figures. Control valve manufacturers will usually have computer sizing and selection software complementing their own range of valves. Properly sizing an actuator is an important step to realizing a valves full potential safely and efficiently. A an accurate maximum torque requirement must be obtained before actuator sizing begins. The module also includes multiphase flow sizing as well as noise and cavitation prediction analysis. Nomenclature flow capacity the valve sizing coefficient most. Selectpro is belimos software tool used for accurately sizing and selecting valves, actuators, and replacement solutions. And our valve sizing and selection software, nelprof 6. Installed flow characteristics and gain of two segment ball valves. Today, control valve software from most manufacturers is quite mature, meaning the program includes all the necessary valve parameters and reduces the sizing process to only one or two steps for the end user. Valve sizing worcester offers a control valve sizing program available. The kvvalue is a measure of the flow rate through a valve for a given medium and pressure drop. Control valve sizing for steam systems spirax sarco.
V5 table of contents j series electric zone valves threeway spring return, onoff control. An online valve sizing calculator by hass manufacturing company. The stepbystep method outlined in this section is the most common method of sizing. Dezurik a global leader in manufacturing valves for water treatment, water distribution, wastewater treatment, pulp and paper, chemical, petrochemical, mining and valves for other process industries. Belimo industrial ball valves feature 2way and 3way configurations operated by rotary actuators. When the largest gas turbine manufacturer in the world needed a customengineered control valve that was hyperaccurate, able to choke flow at various travel positions, and had global service availability, emerson took on the challenge.
Extreme accuracy challenge solved with emersons fisher valves. This program calculates the valve specific data kvs value, required nominal valve size, etc. There are volumes of information on the science of valve sizing and fluid mechanics. Multifunction technology, only from belimo, allows you to create custom solutions for individual applications, using the same programmable actuator.
If you are interested in learning more about clareg software, please click here please be sure to check out our new mobile phone app, link2valves, for managing the servicing of automatic control valves and other pipeline assets. Valve torque before the actuator can be sized for any given valve application, the amount of torque required by the valve must be determined. V221 j series electric zone valves for assembly in the. Types of valve actuators valve actuators are devices used to position valves. Lets look at the issue of proper actuator sizing for slidingstem globe valves. This onoff calculation tool allows the selection of all metso metal and softseated onoff valves with advanced actuator sizing, including adjustable safety factor and torque key figures. A valve cv can be described as the number of gallons per minute gpm at 60of 15. Metso intelligent, reliable on off valve solutions for general and highcycle applications will help to reduce the lifecycle costs. On off valve actuator sizing cr4 discussion thread. The hiflow series is offered in three actuator sizes with a variety of range spring sizes, according to the shutoff pressure needed. The torque output of most rotary actuators changes with the angle of opening. By using the tool, you can select the actuator more quickly and accurately in the engineering phase, compared to conventional actuator selection. Sep 09, 2016 this is a tutorial on how to properly size your actuator for your marwin ball valve. A control valve is the single most important element in any fluid handling system.
The actuator must be sized to be large enough to shutoff the valve against system pressure on the valve plug. A control valve performs a special task, controlling the flow of fluids so a process variable such as fluid pressure, level or temperature can be controlled. When sizing control valves, a general rule of thumb noted in many engineering publications is to size the valve such that it operates between 20 to 80% open at maximum required flow rate. Using the highest quality materials and decades of design refinement elomatic actuators reliably and efficiently operate quarterturn mechanisms. A valve design in which one port is collinear with the valve stem or actuator, and the other. Fast and reliable onoff valve selection this onoff calculation tool allows the selection of all metso metal and softseated onoff valves with advanced but easytouse actuator sizing including adjustable safety factor and torque key figures. Select any of the marwin ball valve series, size, seat material and service factor from several drop down menus. Guided sales configurators for valve sizing and selection precise valve is a valve sizing software or configure, price, quote cpq software for the valve industry. The flow coefficient, cv, is a dimensionless value that relates to a valve s flow capacity. Habonim sizing software is a unique tool, which simplifies the task of selecting the perfect valve package for most services. If the valve is short stroked by using an actuator with less stroke than the valve, full cv rating of the valve may not be realized. Features of the samson valve sizing program samson.
Even a properly sized control valve wont do its job if the actuator moving it isnt properly sized as well. Control valves may be broadly classified by their function as on off type or flow regulating type. Warrens valve sizing program valveworks will accurately calculate the c v, flow velocity and flow noise. Some valve sizing software even makes a recommendation as to which size of valve it thinks is the best choice. You can modify voltage control, time proportional control, floating point, onoff and feedback signals too. Pneumatic actuators come in many design types, but all share the same need for basic understanding of how their torque operates a valve. Habonim sizing software is a unique tool, which simplifies the task of. This onoff calculation tool allows the selection of all metso metal and softseated onoff valves with advanced but easytouse actuator sizing including. Onoff actuation on off valves are devices that control the flow of fluid by opening, closing or partially obstructing the flow. Oversized actuators can cost more than necessary, add unnecessary weight to the control valve assembly and do not respond as quickly to changes in control signals as properly sized. The hiflow series is offered in three actuator sizes with a variety of range spring sizes, according to the shut off pressure needed.
Actuator sizing weir type valve stroke actuator size 12. How to properly size an actuator pipe, valve and fitting. It is the result of over a decade of experience working with manufacturers of valves for various applications. A regulator which is used to control the supply pressure to the valve actuator and its auxiliaries. Use this window to size a directional control valve for your application by identifying the coefficient of flow cv required to power the cylinder under the defined conditions. In addition to controlling the flow, a control valve may be used to shut off flow. Claval flow control solutions automatic control valves. Click on the button below to open an excel spreadsheet. Control valve excel worksheets control valve application tools. A packing box with packing above and below the lantern ring so as to provide a collection. The program will calculate the proper size marwin electric and pneumatic actuators and gear operators for the valve selected. A unique feature of these worksheets is that in addition to performing traditional cv calculations, they can also graph the installed flow characteristic and installed gain of a valve when it is installed in a particular system. Spartan controls has been helping customers reduce the risks of procuring onoff valves and actuators for over 30 years.
If you should have any further questions, or need assistance, please contact your local representative or call. It is also recommended to have the minimum opening no less than 20% to provide a safety margin at the minimum flow rate required. The actuator must be sized to be large enough to shut off the valve against system pressure on the valve plug. Selecting the proper valve will have great effect on the efficiency of a system.
However, a simple steam valve sizing equation, such as that shown in equation 3. When valve manufacturers data is not available, this excel sheet can provide typical values based on the users input of cv based on the sizing calculations from a valve sizing program or worksheet and the valve size. This option will only affect the choice of valve when selecting application in step 2. Too often pressure relief valve sizes are determined by merely matching the size of an existing available vessel nozzle, or the size of an existing pipe line connection.
The actuators are controlled by a standard voltage for onoff, modulating, or floating point control which moves the valve to the position dictated by the control system. Actuators are rotork, valves are a wellknown western manufacturer. Afterwards, these data are used to determine a valve which is then suggested by the program. Actuator diaphragm actuators are seldom accurate at less than 5% of the. The more pressure, the more torque the actuator has the potential to output. Sizing rotary control valve actuators properly is essential to ensuring accurate control and that the valve will shut off tightly when it is required to do so.
Condensed catalogcondensed catalog actuators controls. Dezurikapcohilton valves for municipal and industrial. What is actually fos means register to reply interested in this topic. Control valves elements for defining, sizing, and selecting training module 1.
The program will also show messages when unusual conditions occur such as cavitation, flashing, high velocity or high noise. Modern tools for sizing control valves and actuators valin. Jvcv max software designed for engineers, the jvcv max is a valve sizing program that has been developed to help you quickly and accurately determine the flow coefficient of a valve so that you can choose the proper jordan valve for your application. Automation of mccanna ball valves explanation of actuator sizing procedure five factors affect valve torque and hence, actuator sizing.
Hvs has access to a database of over 5,800 different media. Control valves may be broadly classified by their function as onoff type or flow regulating type. A an accurate maximum torque requirement must be obtained before actuator sizing. Valves can be categorized into the following types, based on their operating mechanism. Control valve excel worksheets control valve application. Software for calculating and sizing control valves. Metso has released nelprof 6 valve sizing software. Select any of the marwin ball valve series, size, seat material and service factor from. A computerized analysis of the installed characteristic should be part of the control valve sizing and selection process. The valve sizing process determines the required cv, the required fl, flow velocities, flow noise and the appropriate actuator size valve flow terminology cv.
The flow coefficient, cv, is a dimensionless value that relates to a valves flow capacity. The results from warrens valve sizing program are only one element of the valve. Properly sizing an actuator is an important step to realizing a valve. Control valve actuator sizing and valve action selection. Incorrectly sizing an actuator can lead to a multitude of problems. Metso valve selection software nelprof 6 benefits fast and reliable onoff valve selection this onoff calculation tool allows the selection of all metso metal and softseated onoff valves with advanced but easytouse actuator sizing including adjustable safety factor and torque key figures. Mrc global has experienced technical inside sales representatives and an engineering department that can help you with sizing and selecting the right actuator for your application. Some parameters required by the iec control valve noise calculations, especially xfz and fd are not always easy to find. Special safety requirements, such as an actuatorsizing safety factor or a complete valveassembly safetyintegrity. These valves are used in a wide variety of applications including emergency shutdown esd valves, block valves, modulating valves, and switching valves. Actuator sizing sizing actuators for onoff service is fairly straight forward, requiring only that an actuator be selected with a torque output slightly higher than the seating and unseating torque of the valve. Actuator sizing weir type valve stroke actuator size 12 25 50 75 101 250.
Sizing bettis actuators the following information is generally the minimum required for sizing bettis quarterturn pneumatic and hydraulic actuators for specific valve requirements. The new version extends earlier nelprof versions with two new calculation modules, which enable the selection of intelligent automated onoff valves and emergency valves. Properly sizing an actuator is an important step to realizing a valve s full potential safely and efficiently. Use this form to help select the correct valve for your application. By using the tool, users can select the actuator more quickly and accurately in the engineering phase, compared to conventional actuator selection. The samson valve sizing program is a software for calculating and sizing control valves. Correct and comprehensive pressure relief valve sizing is a complex multistep process that should follow the following stepwise approach. This windowsbased software will significantly reduce user effort associated with manual actuator sizing and more importantly reduce sizing errors. Jan 18, 2020 valve actuators are a type of control valve, and there are many options available to meet plantwide and individual automation requirements. To properly size a control valve, a design engineer would take into consideration the entire system. Hvac valve sizing in the real world industrial controls.
The honeywell home trademark is used under license from honeywell international inc. These instructions are designed to expose the user to the different aspects of valve sizing. Usually, the kvvalue is given in the product description or datasheet. Our valve solutions provide long lasting tight shut off with fast and safe operation together with reduced fugitive emissions.
On off actuator i valve automation spartan controls. As a part of the emerson valve automation portfolio of products, you can be assured of elomatics quality, backed by local western canadian experts. Metso adds safety to nelprof valve sizing software. Some valve sizing software even makes a recommendation as to which. Valve sizing charts show the maximum shutoff pressure for each size valve with each size actuator. A control valve may be defined as a valve with a powered actuator that responds to an external signal. Clareg pressure reducing valve sizing software now available. Control valve sizer hvs habonim valve sizer hvs is a unique software tool, which simplifies the task of selecting the perfect control valve package for most services. While simple in concept, consisting of a box with an input, output, and a mechanism to operate a valve, there are actually quite a few considerations in choosing the right valve actuator. When sizing a control valve, the most common approach is to calculate the flow coefficient, cv which is a measure of the capacity of the valve body and trim. Theres more to the actuator sizing than determining what physically fits on the control valve. Valve sizing calculator simple calculation extended calculation and choice of actuator. One of the actuators is sized at 100% of predicted valve operating torque.