Pneumatic actuators use air pressure pushing against either a flexible diaphragm or a piston to move a. In addition to controlling the flow, a control valve may be used to shut off flow. Socketweld and npt end connections are available on 1 thru 2inch valves with equivalent facetoface dimensions. The purpose of a control valve actuator is to provide the motive force to operate a valve mechanism. The valtek mark one globe control valve offers superior performance in liquid and gaseous services, while also permitting easy, fast and inexpensive maintenance. Valtek trooper 2 flowserve corporation, valtek control products, tel. This introduction discusses general information about control valve sizing. Valtek has programmed the ansiisa sizing equations and procedures, making computeraided sizing available on ibmpc or compatible computers. Yet, it is rugged and can be used safely and confidently in a wide range of general service applications plantwide. Selecting the right size valve is an important part of the process, but there are other equally important considerations as well. With balanced sigma distribution across the stages cavitation is eliminated in the intermediate pressure drops extending the life of the trim. 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. It also outlines the basic control valve parameters which must be known for correct.
These instructions are designed to expose the user to the different aspects of valve sizing. Valtek flowpro high performance control valve pumps seals. Valtek mark one control valves body assembly the valtek mark one globe control valve offers superior performance in liquid and gaseous services, while also permitting easy, fast and inexpensive maintenance. Special print improved control valve sizing for multiphase flow. Flowserve control valves, actuators, and positioners for a full range of. 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. A 2inch valtek mark one control valve would handle the. We can supply you with all the products within the flowserve range, including argus trunnion mounted ball valves, valtek control valves and naf valves designed for the paper and pulp industry. This fourth edition presents vital information on control valve performance and the latest technologies. Apr 07, 2016 valtek control products are also known for handling the most severe services. Flowserve control valve positioner training part 1 duration. The material follows the sequential order of the typical valtek quote sheet as shown in figures 11 through. This standard and the corresponding measuring standards contain equations used to predict the flow of compressible and incompressible fluids in control valves. Nomenclature flow capacity the valve sizing coefficient most commonly used as a measure of the capacity of the body and trim of a control valve is cv.
Flowserve reduces pressure via division in partitions a course which is different to that pursued by other suppliers. Valve sizing and selection is the right tool for the right product first time, every time. These workbooks include typical valve sizing and noise calculation parameters and typical tables of valve capacity cv for a. The control valve handbook has been a primary reference since its first. This comprehensive set of next generation engineering tools allow you to size and select flowserve control valve products best suited to your application and service conditions. Shaft upstream or downstream shaft upstream or downstream shaft downstream shaft upstream valve temperature valve size inches. Valtek uses a systematic method for selecting body types, sizes, materials, pressure ratings and. A control valve may be defined as a valve with a powered actuator that responds to an external signal. The valtek gs control valve is a fully integrated valve actuatorinstrumentation package for continuous process noncritical flow loop control throughout the plant.
Properly selected and maintained control valves increase efficiency. Control valve actuators basic principles of control. Usa 801 489 8611 the valtek trooper valve is a highperformance, generalservice control valve with a highthrust diaphragm actuator. Further sizing details are available in performance. With balanced sigma distribution across the stages cavitation is eliminated in the intermediate pres. The flowpro control valve is a highperformance, general application valve coupled with the highthrust flowact pneumatic diaphragm actuator. With a clampedin seat ring, the mark 100 has been designed for. The mark 100 also has longer stroke lengths, providing finer control and resulting in superior process control in. In addition, the actuator is lighter, smaller and easier to handle than comparable diaphragm actuators. These programs permit rapid control valve flow capacity calculations and valve selection with minimal effort.
K control valves generally are used by the process control industry to regulate constantly fluctuating flows. Cv values presented in these control valve sizing coefficient tables are based on. Both slidingstem and rotary control valves enjoy the same selection of actuators. Valtek control products are also known for handling the most severe services. Valve sizing calculator manual this section provides the user a practical guideline for the valve sizing calculator use, showing the main features of the software and describing stepbystep how to size a control ball valve. Special print improved control valve sizing for multiphase. This standard and the corresponding measuring standards contain equations used to predict the flow of compressible and incompressible fluids in. Intelligent control valve systems starpac intelligent control system starpac ii intelligent control system valtek rs232 to rs485 converter logix series digital positioner logix series 2000 digital positioner severe service.
Flowserve valtek mark manuals manuals and user guides for flowserve valtek mark. The modular, simplified and lowcomplexity design provides an easy and simple product sizing and selection. Valtek mark onepower flowserve corporation, valtek control products, tel. The valve is designed for use in ansi class 150 or 300 service applications with temperatures ranging from 20 to 650 f 30 to 345 c. Maximum allowable shutoff pressure drops psi specifications 2 3 4 6 8 10 12 14 16 18 20 24 30 flow dir. Flow equations for sizing control valves integrated systems. This standard and the corresponding measuring standards contain equations used to predict the flow of. The flowpak control valve is a general service valve coupled with the highthrust flowact pneumatic diaphragm actuator. We have 2 flowserve valtek mark manuals available for free pdf download. The ip transducer is used when conditions require that the transducer be located remotely from a positioner equipped actuator, or it may be used directly on a diaphragm actuator. Control valve is a critical element in achieving the desired accuracy in process control. Carbon steel, stainless steel, others on request trim material. Valtek valdisk control valves flowserve corporation, valtek control products, tel. Flowserve valtek mark one control valve linkedin slideshare.
The flowserve mark 100 globe control offers the highest flow capacity, as well as fast, easy maintenance in both gas and liquid control. Valtek control valve flow capacity c v is based upon the industry standard, ansiisa s75. Nxt valve sizing and selection suite is changing the way entire industries size and select. Chapter 2 develops the vital topic of control valve performance.
Valtek uses a systematic method for selecting body types, sizes, materials, pressure ratings and trim sizes based on flow characteristics. This standard and the corresponding measuring standards contain. Flowserve pumps is one of the worlds largest suppliers of industrial, engineered, and special purpose pumps and systems. When control valve professionals talk about control valve sizing, they really mean the entire process of selecting the valve that will do the best job of controlling the process. Control valve excel worksheets control valve application. The control valve handbook has been a primary reference since its first printing in 1965. The valtek mark 100 is a large control valve designed to meet the needs of large applications. The piping geometry factor, fp, and the reynolds number factor, fr, are both assumed to have a value of one.
The springcylinder actuated mark one valve provides. Mar 18, 2017 plus, with the mark one valves high degree of parts interchangeability, fewer inventory parts are required. View online or download flowserve valtek mark user instructions, safety manual. Usa 801 489 8611 the valtek mark onepower control valve offers solutions to many power services challenges. The fl, liquid pressure recovery coefficient, is a dimensionless constant used to calculate the pressure drop when the valves liquid flow is choked.
The springcylinder actuated mark one valve provides stiffness and maintains high positioning accuracy, repeatability, controlled high speed, and faithful response. The valtek mark one tm globe control valve offers superior performance in liquid and gaseous services, while also permitting easy, fast and inexpensive maintenance. Valtek gs general service control valve the valtek gs product line is low cost, compact and lightweight. This standard is intended for control valves used in flow control of process fluids and is not intended to apply to fluid power components as defined in the national fluid power association standard nfpa t. Nomenclature flow capacity 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. Using the isa liquid sizing formula, the flow coefficient, or cv, can be determined.
Valtek flowpro high performance control valve pumps. As the dynamic forces of a flow increase or decrease, the control valve must remain in the same position as dictated by the controller. Maxflotm rotary plug control valve, body subassembly introduction the valtek maxflotm is an eccentric plug, high performance, rotary control valve designed for use in a wide variety of applications ranging from low pressure, high c v to slurry and pulp services, to oil and gas services. A 2inch valtek mark one control valve would handle the above application. The stepbystep method outlined in this section is the most common method of sizing. Gate valves are designed tooperate in a fully open or fully closed position. The modular design allows by using the same body with different types of bonnets, trims and. Vogt gate valves are availablewith a variety of bonnet types, body and trim materials and stem packings in addition to a broad range of pressure classes, and end connections including extended bodies. Chapter 4 describes digital valve controllers, analog positioners, boosters, and other control valve accessories. Our commitment to continuous improvement has been acknowledged through the prestigious independent distributor award presented to us by flowserve uk. Chapter 1 offers an introduction to control valves including definitions for common control valve and instrumentation terminology. The major advantage is a noticeable reduction in wear combined with an extremely lownoise control valve. The springcylinder actuated mark one valve provides stiffness and maintains high positioning accuracy, repeatability. Vbg intech control valves formerly valtek sulamericana mena.
Control valves may be broadly classified by their function as onoff type or flow regulating type. The mark 200 plug is typically pressurebalanced to allow smaller and more economical actuators. Valtek gs control valve high cv rates reduced valve sizes. The valtek mark one control valve is the industry choice for a simple, reliable, tough globe valve. Its integrated control valve package consists of the newly designed gs linear globe valve, the new valtek logix 420 digital positioner with quick cal, and the flowact pneumatic diaphragm actuator. Flow control is a leading global manufacturer of flow control products including control valves, quarterturn valves, actuators, and complete valve automation systems. Valtek control valve flow capacity cv is based upon the industry standard, ansi isa s75. The valve gain is equal to the slope of the flow characteristic and is of primary significance in establishing the compatibility of the plug with the process. When open, the media will flow with minimal turbulence and pressure drop through the valve.
Good sizing makes all the difference multiz provides milestone advancement in axial flow valve sizing. Computer based simulation, design and sizing programs have been developing fast during past years and these are well in used by advanced control valve manufacturers to provide and maximize the bene. Catalog and application manual valves flowserve pdf. Its modularity provides trim and material options to suit most service situations. They include control valve sizing calculations in accordance with the current isaiec standards and noise calculations in accordance with the current iec standards. Its the right tool for finding the right product, every time. The programs also include exit velocity, noise prediction and actuator sizing calculations. Chapter 5 is a comprehensive guide to selecting the best control valve for an. The valtek flowpro is a high performance control valve coupled with the highthrust flowact pneumatic diaphragm actuator. Control valves are an increasingly vital component of modern manufacturing around the world. The flowserve mark 100 globe control offers the highest. Nxt puts the power of ondemand control valve selection and sizing at your fingertips.
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