Practical Control Valve Sizing, Selection and Maintenance

THE WORKSHOP

It is claimed that the majority of control valves throughout the world have not been correctly sized and that large numbers operate on manual mode. Whether this is true or not is difficult to establish but we do know that the method of sizing and selecting a control valve for a specific application is generally not well understood. Although there are many factors that need to be taken into account the subject is not difficult to understand if dealt with in a logical manner.

Many maintenance problems result from people treating the symptoms of a problem rather than tackling the true cause – a basic understanding of the principles is all that is usually needed to solve the problem for good. This practical, hands-on workshop is designed to maximise knowledge retention and understanding. It provides an opportunity for participants to discuss with the presenter and others, specific problems and appropriate solutions. All delegates take away a detailed and comprehensive copy of the material presented; therefore minimal note taking is encouraged to ensure maximum delegate participation and attention.

WHAT IS INCLUDED?

  • Receive a certificate of attendance in support of your continuing professional commitment
  • All workshops include the associated hardcopy technical manual
  • Printed workshop handouts
  • Lunch and refreshments
  • Interact and network with workshop attendees and experienced instructors
  • Practical, industry driven content to assist you in your continuing professional development (CPD)
  • Attendees automatically become IDC subscribers and receive exclusive deals and technical content every month

WHO SHOULD ATTEND?

  • Consulting engineers
  • Control valve specialists
  • Electrical engineers
  • Instrumentation and control engineers and technicians
  • Maintenance engineers, technicians and planners
  • Plant safety specialists
  • Process control engineers
  • Project engineers
  • Systems engineers

CONTENT SUMMARY

INTRODUCTION TO CONTROL VALVE THEORY

  • Introduction and definitions
  • Energy types
  • What happens inside a control valve
  • Cavitations and flashing
  • Choked flow
  • Valve co-efficient CV

DIFFERENT TYPES OF CONTROL VALVES

  • Globe valves
  • Butterfly
  • Eccentric disk
  • Ball
  • Rotary plug
  • Diaphragm and pinch

CHARACTERISTICS

  • Equal percent
  • Linear
  • Quick opening
  • Selection method

HIGH PRESSURE DROP APPLICATIONS

  • Cavitations control and elimination
  • Low noise
  • Diffuser plates
  • Chokes
  • Disk stack technology
  • Pressure balanced trim

VALVE SIZING EXAMPLES OF HIGH PRESSURE DROP APPLICATIONS USING COMPUTER PROGRAMS

  • Water – pump bypass
  • Steam – turbine bypass
  • Gas – pressure reducing
  • Oil – choke valve

ACTUATORS

  • Pneumatic
  • Hydraulic
  • Electric
  • Sizing on rotary valves and linear valves
  • Mounting considerations
  • Manual over-rides
  • Accessories

POSITIONERS

  • Basic principles
  • Conventional pneumatic
  • Conventional electro-pneumatic
  • Smart positioners
  • Feedback options

PNEUMATIC CIRCUITS

  • Volume tank fail system
  • Fail fix
  • Volume boosters

MATERIALS

  • Body materials and pressure ratings
  • Trim and packaging
  • Guides and gaskets

QUALITY STANDARDS

  • ASME
  • NACE
  • ISO 9000/2000
  • PED
  • NAMUR

INSTALLATION AND MAINTENANCE

  • Installation, commissioning and routine maintenance
  • Fault finding
  • Modes of failure

Book Now

 

 

This course is available fully online by our sister organization the Engineering Institute of Technology (EIT).

CLICK HERE for more information.