INTENDED AUDIENCE: Electrical engineers, Instrumentation and control engineers and technicians, Maintenance, Mechanical engineers, technicians, Process control engineers

 COURSE OBJECTIVES: 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

KEY CONTENTS:

INTRODUCTION TO CONTROL VALVE THEORY

• Introduction and definitions
• Fluid Flow
• Choked flow condition (critical flow)

DIFFERENT TYPES OF CONTROL VALVES

• Control valve standard
• Control valve component
• Control valve boby
• Special valve

CONTROL VALVE ACTUATOR

• Manual
• Pneumatic
• Electric Motor
• Hydraulic
• Self – actuated

CONTROL VALVE POSITIONER

• Why do you need positioner
• Advantage of adding positioner
• How can positioner increase valve seating
• Electronic positioner

CONTROL VALVE CHARACTERIZATION

• Valve Characterization
• Selection Method

CONTROL VALVE SIZING

• Flow Coefficient
• Variable Restriction
• Pressure drops
• Flow capacity
• Choked flow condition
• Liquid design Equations
• Relative flow

INSTALLATION, OPERATION AND MAINTENANCE

• Valve failure modes
• Control Valve Engineering problem
• Installation and maintenance