Course Description

This course, ‘Valve and Actuator Technology’ provides a total in-depth insight into valve and actuator technology – looking not just at control valves, but a whole host of other types including : check valves, shut-off valves, solenoid valves, and pressure relief valves. A methodology is presented to ensure the optimum selection of size, choice of body and trim materials, components, and ancillaries. Whilst studying the correct procedures for sizing, delegates will also learn the correct procedures for calculating the spring ‘wind-up’ or ‘bench set’.

 

Course Objectives

·         appreciate the basic theory of flow through a control valve

·         understand the major technologies used in the final control element

·         perform flow and system pressure head loss calculations

·         appreciate the principles of cavitation control and noise reduction

·         select optimum materials of construction to avoid corrosion and erosion

·         understand the correct requirements for trim selection

·         understand control valve characterisation and characteristic profiling

·         use the control valve seat leakage classifications

·         pick the optimum valve-actuator combination

·         understand the principles of preventive maintenance through the application of signature analysis

·         gain an insight into the application and limitations of safety relief valves

Who Should Attend?

·         Engineers 

·         Installation and Maintenance Technicians Instrument  

·         Technicians  Instrument Fitters Maintenance  Engineers Mechanical Engineers 

·         Production Managers Project Managers System Integrators

Program Schedule

DAY 1

·         Bernoulli’s equation

·         Defining the valve flow coefficient, Cv

·         Choked flow

·         Pressure recovery

·         Velocity profiles

·         Reynolds number

·         Flashing and cavitation

·         Trim selection

·         Water hammer

·          

o    ANSI Class and PN pressure ratings

o    Packing/stuffing box requirements

o    Control valve seat leakage classifications

DAY 2

·         Globe valves

·         Split body globe

·         Angle valve

·         Needle valves

·         Bar stock body

·         Gate valves

·         Pinch valves

·         Diaphragm valves

·         Ball valves

·         Butterfly valve

·         Plug valve

·         Eccentric plug valve

·         Check valves

·         End connections

DAY 3

·         Inherent characteristics

·         Installed characteristic

·         Characteristic profiling

·         Cavitation controlv

·         Noise reduction

·         Body selection guide

·         Trim selection guide v

·         Actuator and accessory selection

·          

o    Manual and computer-based

DAY 4

·         Pneumatic control

·         I/p converter

·         Diaphragm actuators

·         Cylinder/piston-type actuator.

·         Electro-hydraulic actuation

·         Electric actuator

·         Solenoid valves

·         Digital actuators

·         Transfer mechanisms

·         Valve positioners

DAY 5

·         Testing for deadband/hysteresis

·         Stick-slip

·         Non-linearity

·         On-line diagnostics

·         Bench Set

·         In-line repairs

·         Shop repairs

·         Standards

·         Relief valves

·         Safety valves

·         Rupture discs