• The purpose of this course is to introduce the fundamental principles of the selection and installation of the correct valve and to perform all kinds of preventive, predictive, and primitive maintenance because it is very critical for the safety of the process.
• The valves are considered the most expensive element in the control loop so you can save millions of dollars if you have the right knowledge and skills to choose the best selection, construction, and engineering and to know how to determine static and dynamic parameters by online diagnostic without shutdown to any process.

This is designed to train new and limited-experienced technicians and limited-experienced engineers. The program is useful for mechanical, instrument, electrical, chemical, and for senior supervisors.

This interactive Training will be highly interactive, with opportunities to advance your opinions and ideas, and will include:

Lectures
Workshop & Work Presentation
Case Studies and Practical Exercises
Videos and General Discussions

Day 1:

The purpose of final control elements

• Control valves & actuators
• Introduction
• Control valve functions
• Dead band
• Speed of response
• Flow characteristic
• Rangeability
• Actuator
• Type of Actuator
• Actuator selection
• Actuator sizing
• Control valve installation
• Clearance and attachment
• Adjacent pipe fittings
• Steam and condensate
• Control valve selection
• Valve body designs
• Globe valves
• Single-port valves
• Double-port valves
• Three–way valves
• Split–body valve
• Angle valves
• Needle valves
• Ball valves
• Eccentric disc valves
• Butterfly valves
• Sunders diaphragm valve
• Pinch valves
• Gate valves
• Test & Calibration Equipment

Day 2

• How to prevent valve failure (maintenance program)
• Reactive valve maintenance
• Preventive valve maintenance
• Predictive valve maintenance
• Curative valve maintenance
• Surrey Survey of common control valve problems (Vibrations, turbulence, or cavitation)
• Air leakage
• Incorrect bench set
• Backlash (dead band)
• Hysteresis
• Stick-slip
• Packing friction
• Effects of cavitation
• Control Valve dynamics
• Backlash, hysteresis, stick-slip
• Combined Backlash – stiction
• Speed of response
• overshoot
• Valve selection
• Flow characteristic
• Inherent
• Installed
• Fail Safe mode (FO or FC)
• Valve body
• Cavitation
• Corrosion

Day3: Control valve sizing

• CV factor
• Critical flow
• Cavitation
• Effect of pipe reducers
• Effect of viscosity
• Liquid sizing
• Gas sizing
• Steam sizing
• Valve noise calculations and reductions
• Control valve noise
• Types of noise and recommended solutions
• Mechanical vibrations
• Hydrodynamic noise
• Aerodynamic noise
• Trim selection
• Material selection
• Pressure and temperature rating
• Flashing
• High-pressure drop
• High temperature
• Leakage classes
• Noise, Aerodynamic
• Anti-cavitation
• Control valve Auxiliaries
• Hand wheel, Basses and limit stops
• Snubbers
• Valve positioned
• I/P transducer
• Relays and other accessories
• Actuators
• Pneumatic actuator types
• Fail-safe position
• Actuator’s sizing
• Electric actuators

Valve positioners & accessories

• Positioners
• Function
• Split-range operation
• Conventional
• Double acting
• Profibus and smart Positioner
• Handwheels
• Limit switches
• Limit stops
• Stem position indicators
• Air sets
• Boosters

Day 4: Electric motor drive control Regulators, relief valves, and other control elements regulators

• Regulator types
• Level
• Pressure
• Flow
• Temperature

Safety relief valves

• Safety valve component
• Kind of safety valve
• Operation of safety valve
• Safety valves - design
• Safety valves – sizing
• Rupture discs

Day 5:

• Actuator forces and torque requirement for balance condition of control valve.
• Thrust (buoyancy force)
• Friction force of backing
• Seat load force
• Initial spring force
• Air force
• Online valve testing to determine static and dynamic parameter
• Full stroking ramp test
• Partial stroking ramp test
• Step change test

CDGA attendance certificate will be issued to all attendees completing a minimum of 75% of the total course duration.