A practical approach to control valves , actuators and positioners using real-world process examples & solved problems
What you'll learn
Understand control valves working principles for successful operation of your plant and piping systems
Understand control valve construction details (bonnet, stem, disc, seat, packing, body, actuator, positioner.)
Identify and know the principles of operation of common control valve actuators (diaphragm, piston, rack and pinion, scotch yoke)
Dismantle and assemble various types of control valves and actuators using 3D and 2D models
Understand how single acting and double acting pneumatic actuators work through graphics and 3D animations
Know how to convert a single acting spring return actuator to a double acting actuator and vice versa
Understand the concept of failure mode in control valves : Fail Open "FO", Fail Closed "FC", Fail As Is "FAI"
Understand the concept of "Air-to-push-up" and Air-to-push-down"
Understand the concept of "direct-acting" and "reverse-acting"
Know how to convert a fail close actuator to a fail open actuator and vice versa
Understand the concept of valve flow coefficient "Cv" and familiarize yourself with the various units
Know how to determine flowrate and pressure drop through control valves for different valve lifts
Know how to match the valve characteristics to the process
Know how to construct the installation curve for a given control valve
Understand the effect of selecting a control valve larger than necessary
Understand the effect of differential pressure on the valve lift and actuator operation
Differentiate between fast opening, linear and equal percentage valve characteristics
Understand how valve positioners operate
Know the different types of valve positioners (P/P, I/P, force balance, motion balance, digital.)
Understand when a positioner should be fitted
Understand the working principles of I/P converters and how they are used in control valves
Put your knowledge to the test at the end of each section with a valuable technical quiz (190+ questions and solved problems)
Requirements
Some engineering or field knowledge is preferable but not mandatory. All the concepts are explained in depth using an easy to understand language to allow students to build their knowledge from the ground up
Description
This course is for engineers, valve mechanics, maintenance personnel, instrument technicians and other persons responsible for the selection, sizing, installation, commissioning, operation and maintenance of control valves, actuators and positioners.The course begins with a review of the role and function of control valves and actuators and offers a technical perspective for the working of positioners for control valve operation.You will find valuable insights into the working principles and construction details of the following equipment:control valves (sliding stem and rotary / fast opening, linear and equal percentage)mixing and diverting 3-port control valvesdiaphragm actuators (air-to-push-up and air-to-push-down)piston actuators (single acting and double acting / Fail Open (FO) and Fail Close (FC))rack and pinion actuators (single acting and double acting / Fail Open (FO) and Fail Close (FC))scotch yoke actuators (single acting and double acting / Fail Open (FO) and Fail Close (FC))pneumatic positioners (force balance, motion balance)digital positionersI/P convertersThe course then proceeds through a series of process examples and solved problems that require you to:dismantle and assemble various types of control valves and actuators using 3D and 2D modelsidentify the net effect of various control valve/actuator assemblies (direct acting, reverse acting, fail open, fail close...)convert an actuator from single acting to double acting configurationconvert a control valve/actuator assembly from a fail close to a fail open configurationconstruct the installation curve for a control valvedetermine flowrate and pressure drop through control valves for different valve liftsmatch the valve characteristics to the given applicationexamine the effect of selecting a control valve larger than necessaryexamine the effect of differential pressure on the valve lift and actuator operationdetermine when a positioner should be fitted...This will help you develop the necessary skills to ensure your process plant and piping systems run smoothly.The course also includes:extensive graphicscross-sectional views3D animationsThis will give you a virtual practical exposure on control valves, actuators and positioners.In addition, we have included at the end of the course a technical quiz (190+ questions) to help you test your knowledge and emphasize the key learning points.The quiz includes:True/False questionsMulti-choice questionsImages, cross-sectional viewsSolved problemsand much more...So when you think you've got a good grasp on a topic within the course, you can test your knowledge by taking the quiz. If you pass, wonderful ! If not, you can review the videos and notes again or ask us for help in the Q&A section.We promise you that even though this is a technical training, you can watch it easily, without pain, but with comprehension, and that after completing it, you won't be an experienced process control engineer or instrument technician but you will be prepared to become one if that is what you like and persist to be.Thank you again for your interest in our online courses. It is a privilege to serve you and make sure that you're learning valuable information with us.WR TrainingSpread the wings of your knowledge
Overview
Section 1: Control valve functions and basic parts
Lecture 1 Learning objectives
Lecture 2 Introduction
Lecture 3 Valve body
Lecture 4 Valve bonnet
Lecture 5 Trim
Lecture 6 Plug and seat
Lecture 7 Stem
Lecture 8 Actuator
Lecture 9 Packing
Lecture 10 Before you proceed to the next section
Section 2: Control valve configurations
Lecture 11 Control valves
Lecture 12 Trim arrangement
Lecture 13 Direction of action
Lecture 14 Control valve 3D dismantling
Lecture 15 Control valve 2D dismantling
Lecture 16 Before you proceed to the next section
Section 3: General considerations
Lecture 17 Introduction
Lecture 18 Two-port valves
Lecture 19 Shut-off tightness
Lecture 20 Balanced single seat
Lecture 21 Slide valves - Spindle operated
Lecture 22 Rotary valves
Lecture 23 Options
Lecture 24 Two-port valves summary
Lecture 25 Three-port valves
Lecture 26 Process examples of three-port valves
Lecture 27 Before you proceed to the next section
Section 4: Control valve capacity
Lecture 28 Introduction
Lecture 29 Valve flow coefficient Cv
Lecture 30 Use of flow coefficient Cv for piping and components
Lecture 31 Before you proceed to the next section
Section 5: Control valve characteristics
Lecture 32 Flow characteristics
Lecture 33 Fast opening
Lecture 34 Linear
Lecture 35 Equal percentage
Lecture 36 Example: Determining flowrate for different valve lifts
Lecture 37 Matching the valve characteristic to the process
Lecture 38 Example: A water circulating heating system
Lecture 39 Example: A boiler water level control system
Lecture 40 Example: Constructing the installation curve
Lecture 41 Example: Comparing linear and equal percentage
Lecture 42 Example: Temperature control of a steam application
Lecture 43 Example: The effect of selecting a control valve larger than necessary
Lecture 44 Before you proceed to the next section
Section 6: Control valve actuators and positioners for continuous control action
Lecture 45 Introduction
Lecture 46 Piston actuators
Lecture 47 Piston actuators (double acting) - 3D animation
Lecture 48 Piston actuators (single acting) - Dismantling
Lecture 49 Diaphragm actuators
Lecture 50 Actuator valve combinations
Lecture 51 Effect of differential pressure on the valve lift
Lecture 52 What are valve positioners ?
Lecture 53 Force balance positioners
Lecture 54 Motion balance positioners
Lecture 55 Example of positioners
Lecture 56 Positioners: What you should remember
Lecture 57 Positioners: When should a positioner be fitted
Lecture 58 P/P positioners
Lecture 59 I/P positioners
Lecture 60 About I/P converters
Lecture 61 Digital positioners
Lecture 62 Summary: Selecting a pneumatic valve and actuator
Lecture 63 Before you proceed to the next section
Section 7: Control valve actuators and position indicators for On/Off control action
Lecture 64 Pneumatic actuators
Lecture 65 Example 1 : Single acting / spring return actuators : Components & Operation
Lecture 66 Example 2 : Single acting / spring return actuators : Components & Operation
Lecture 67 Example 3 : Double acting actuators : Components & Operation
Lecture 68 Example 4 : Double acting actuators : Components & Operation
Lecture 69 From single acting to double acting actuator
Lecture 70 From Fail Close (FC) to Fail Open (FO) - Scotch Yoke actuators
Lecture 71 From Fail Close (FC) to Fail Open (FO) - Rack and Pinion Actuators
Lecture 72 Rack and Pinion vs Scotch Yoke
Lecture 73 Valve position indication
Lecture 74 Before you proceed to the next section
Section 8: Choices and selection
Lecture 75 What type of valves should be installed ?
Section 9: Installation and commissioning
Lecture 76 Control valves
Lecture 77 Actuators
Chemical / Process / Control Engineers,Design Engineers,Piping Engineers,Plant Engineers,Maintenance / Instrument Technicians,Mechanics,Plant Operators
Screenshots
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