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Valve Technology

 

Course Description:

This course provides the participants with the means to properly operate and support various types of valves and the differences between them from design, utilization and operation (start-up & shut-down) points of view in a way based on the good acquaintance with the modern technologies applied in this field. Trouble-shooting & forecasting break downs are inclusive

Course Goal:

To enhance the participants’ knowledge, skills, and abilities necessary to understand the function of each valve type and the important reflection on the process quality, equipment and plant reliability, and the economics of the whole activity.  Understanding the problems associated with valves is essential for diagnosis and troubleshooting and the needed maintenance for the particular type of valves.

Course Objectives:

By the end of this course the participant will be able to:

  • Understand valve characteristics and different parameters affecting the operation of valves
  • Identify the main types of valves and the ability to select the right valve for the particular application including Control Valves, Non-Return Valves and Safety Valves
  • Perform the necessary calculation for valve sizing
  • Understand valve control systems including actuators and positioners
  • Identify the problems associated with valves like flashing, slamming and water hammer
  • Apply valve maintenance procedures.
  • Perform troubleshooting of systems involving valves and making decisions on the right maintenance plan concerning different types of valves

Course Outline:

  • Basic of the Valve Technology
    • Types of Valves and Selection
    • Valve Parts and Components
    • Valve Flow characteristics
    • Control Valve Flow Characteristics
    • Valve-sizing criteria
    • Pressure Recovery
  • Valve Functions and Types
    • Functions of valves and Methods of regulation
    • Valve Types – Stopping / starting valves, Control valves
    • Valve end connections
    • Valve components and trims
    • Types of valves, Globe, Gate, Ball, Plug, Butterfly Valves, Pinch, Diaphragm Valves
    • Pressure Regulation Valves
  • Check (Non-Return) Valves, Relief and Safety Valves
    • Applications and selection of Check (Non-Return) Valves
    • Types of Check Valves – Swing, Lift, Tilting-disc, Piston
    • Rupture Disk Valves
    • Buckling (Shear)Pin Valves
    • Relief and Safety Valves Types
    • Relief Valves Problems
  • Control Valve Actuators and Positioners
    • Actuation Systems and Forces
    • Linear and Rotary Actuators
    • Types of Actuators –Pneumatic / Hydraulic, Piston, Diaphragm, Electric motors
    • Actuator Performance and Selection
    • Valve Positioners and Operation
    • Examples of valve installation plans and checklists
  • Valve Troubleshooting
    • High Pressure Drop – Pressure Recovery Characteristics
    • Cavitation and Flashing in Valves – Cavitation-elimination devices
    • High Velocities – Erosion
    • Water Hammer –  Causes and Solutions
    • Surge Protection
    • Noise Attenuation Problems
    • Troubleshooting the Control Valves
    • Valve Inspection & Testing (API598)

Delivery Method:

The major training techniques will be utilized are:

  • Group Discussion
  • Pre & Post Assessments
  • Role Plays
  • Case Studies
  • Exercises

Course Duration:

5 Days

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