A constantly growing range of control and safety valves, bursting discs, flowmeters and much more. Clampseal throttling valves is a registered trademark of conval, inc. In deciding the size of the control valve that port size we need to calculate the cv value of the process calculated cv by calculating cv has educated more than 50 years, which is involved in. I have the cv of a valve and i need to calculate the maximum flow rate through the valve. Using the conval software for the petrochemical plant control. The successful operation of process plant and systems involves the highest level of measurement and control performance.
Convals entire functionality can be made available to other applications via a com component object model interface, a standard developed by microsoft for its windows operating system. Understanding and predicting cavitation in control valves cavitation in control valves occurs only with liquid media, and the principal factors are fluid velocity and pressure drop. If you need customer service or technical support regarding steam or valve games, visit steam support at, where we can most efficiently direct your issue to the attention of the right team. The control valves are the most important control elements. Computation range available from control valves and valve elements through piping systems to heat exchangers including the calculation of integrated properties based on a database and comprehensive databases for control valves. Calculation of cv value, flow rates, or upstream and downstream pressures. Free download valve software do following operation conditions for a control valve in a parallel pipeline system. Flow control valve, free flow control valve software downloads. Worcester controls offers the cpt 94 control valve. Clampseal swivldisc gate valves are designed for the most demanding highpressure, hightemperature applications. Multilingual version english, french, german, polish, chinese supports microsoft windows 10, 8, and 7 windows server 2019, 2016, 2012 r2, and 2008 r2. They differ only with regard to the functional scope of the integrated calculation modules. In addition to the control valve, the control system also includes the mounting kit, the appropriate controller and the compressed air line. First engineers, planners and operators of industrial process plants can use it.
Corporation, was asked to use their thennew electron beam. He has lectured nationally and internationally on the subjects of control valve application and sizing, and is the author of the chapter on computerized control valve sizing in the isa practical guides book on control valves. For example, i would start by using the general flow equations. Existing proven methods are used as the basis of applications based on standards such as din, vdi, vdma en iso, isa, asme, api and many others. The performance of control valves can have a dramatic effect on plant operating efficiency, overall profitability and asset life cycle costs. Jordan valve pressure regulators, back pressure regulators, temperature regulators are designed to provide innovative solutions for our customers. The flowtop control valve is a highperformance, general application valve coupled with the highthrust flowact pneumatic diaphragm actuator. Proven practices according to din, vdi, vdma eniso standards or isa, asme, api etc.
Calculating max flow through a control valve posted in industrial professionals. Maxair purchases conval sizing software maxair technology. If this were a 1 phase situation i think the calculation would be straight forward. The valve type is then always preceded with the prefix pcs. Low acquisition cost is not as important as low cost over the serviceable life of a valve. The range of available calculations extends from control valves, differential. Calculation of the pressure surge on closure valve. The program allows the user to choose the type of computation for components and processes in the process industry. All worcester controls standard and characterized seats are available in this valve configuration. According to the manufacturer, the clampseal throttling valves are appropriate for use in severeservice applications, requiring accurate repeatable flow control and dependable shutoff. Conval quebec, exclusive representative lowflow valve. He has lectured nationally and internationally on the subjects of control valve application and sizing, and is the author of the chapter on computerized control valve sizing in. Conval is the industry leader in severe service valves.
For detailled information about the calculation modules see the table at the bottom of the page. This leads to the reduction of spare parts and offers an interchangeable valve for a broad range of. A constantly growing range of control and safety valves, bursting discs. Other materials are available to meet customer needs. The new conval 10 release is now available for download.
Exclusive content and sections only for clients are waiting for you. Conval control valve sizing software calculation of cv value, flow rates, or upstream and downstream pressures calculation of control characteristics w graphical optimization key performance indicator ri reliability index overall reliability rating based on predicted. We are dedicated to providing the highest quality products, all of which feature great durability and incredible longevity. Vapor bubbles will form if the liquids upstream pressure suddenly drops below its vapor pressure as it flows through the valve. I was recently asked how the pressure at the vena contracta of a control valve in a liquid application can be determined. The easy interchangeability of parts means that an entire plant installation can be supported with a. The camseal ball valve line provides a modular solution to rising maintenance expenses. Conval provides three globe valve body styles, y, angle, and tpattern, in asme pressure classes through 4500 and five standard materials. A control valve performs a special task, controlling the flow of fluids so a process variable such as fluid pressure, fluid level, flow rate or temperature p q cv where can be controlled. We have highpressure, hightemperature ball, bellows, check, gate, globe, throttling, and urea service valves for the worlds. Conval guarantees a flexible and professional use without having to forego specific manufacturer data due to its absolute independence from device manufacturers.
Conval control valve sizing software calculation of cv value, flow rates, or upstream and downstream pressures calculation of control characteristics w graphical optimization key performance indicator ri reliability index overall reliability rating based on predicted cavitation and noise key performance indicator ci controllability index. Maintaining a conval valve is far easier and much less costly than replacing a. The best phone number and way to avoid the wait on hold, available live chat options, and the best ways overall to contact valve software in an easytouse summary, as well as a full comparison of the 2 ways to reach valve software, compared by speed and customer recommendations. We offer, by far, the lowest lifecycle costs for industrial applications. My issue is that, the valve i am trying to calculate is near the inlet of. Conval introduces new line of severeservice valves. Special print control valve design aspects for critical. The ability to be utilized in many industrial applications is due to the reliability of the clampseals pressure seal bonnet design and flexibility of component interchangability and easy service. Export to a data sheet excel according to iec or isa. Control valve excel worksheets control valve application. Direct selection of the valve from a manufacturerspecific valve database. Conval the software solution for engineers, planners and operators of industrial. Understanding and predicting cavitation in control valves.
The flow direction field for valves from the database with the value optional must be set explicitly by the user. Integrated property data calculation property database, thermodynamics and extensive databases for actuators, safety valves, flowmeters, media, materials etc. Conval the pc software for engineers, planners and operators of industrial plants. Calculating max flow through a control valve industrial. Conval r is the instriument sizing, optimization and selection software for things like control valves, safty relief valves, flowmeter, pumps and. Conval conval, manufacturer of severeservice valves, has launched a line of clampseal throttling valves. The modular design allows you to use the same body with different types of bonnets, trims and actuators. Conval guarantees professional work and flexibility by avoiding all kinds of dependence on equipment manufacturers. The range of calculations offered extends from control valves, throttle devices, thermometer protection tubes. Proven procedures according to din, vdi, vdma eniso standards or isa, asme, api, etc. The software solution for engineers, planners and operators of industrial plants. The conval bellow seal valves, removes these to leak paths. Control valves are valves used to control conditions such as flow, pressure, temperature, and liquid level by fully or partially opening or closing in response to signals received from controllers that compare a setpoint to a process variable whose value is provided by sensors that monitor changes in such conditions. The valve sizing coefficient most commonly used as a measure of the capacity of the body and trim of a control valve is c v.
Access our customer service phone number, email, and other contact details to get answers to your pressing questions. Office tools downloads samson valve sizing by samson and many more programs are available for instant and free download. Issues concerning export to excel templates are fixed. Control valves therefore perform a key function in this process. Conval has extensive calculation options for components and procedures in the process industry. Conval the software solution for engineers, planners and operators of industrial plants. Conval quebec lowflow valve fractional flow control. This download was scanned by our builtin antivirus and was rated as virus free.
A constantly growing range of control and safety valves, bursting discs, flowmeters and much more ensures a seamless calculation process for your projects. They are used when packed valves may not reliably contain light gasses or hazardous system fluids. The series cpt 94 valve is a nace compatible, rugged, throttling ball control valve for fluids such as chlorine, phosgene, and many toxic liquids and gases. Linear or modified equalpercentage control characteristics. 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. An optional thermodynamic modul is avaliable for all editions. Three separate editions of conval are now available.
Butterfly 72 control valves for spanish npp ringo valves. Learn how sliding gate valves provide greater accuracy and higher capacity. It is important to understand that this equation is only valid when the density at the vena cotracta. Free control valve software download instrumentation tools. Pressure at the vena contracta with liquid flow in a. Habonim valve sizer is an unique software tool which simplifies the task of selecting the perfect profix control valve package for any. In addition to controlling the flow, a control valve may be used to shut off flow. Keywords control, control valve, conval software, refinery. Engineering software suite for valve sizing, flow meter sizing, restriction orifice. Incorporated in 1967, conval has now grown to be the premier manufacturer of high quality, high pressure forged steel valves in the world. Calculation for singlerun piping systems which end with a control valve, as a function of the closing. Conval users are thus able exchange data between programs such as excel, access, word, etc. Pressure relief valve vent sizing and selection software. Calculation and optimization of control valves with noise prediction and installed characteristics as described.
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