Training Control Valves : Selection, Operation and Maintenance

Valves  are, unquestionably, the most important part of any piping and pumping  system  because  they  direct the flow of fluids and regulate temperatures. Properly  used and maintained, they can improve process efficiency  and  lower costs. It is wise to apply the basics of proper valve  maintenance in ways that improve their life cycle and operating efficiency.  Here  are eight often-overlooked valve maintenance basics that can help you do just that. Five  years  ago, the management at Vulcan Chemicals, a business group of   Vulcan  Materials  Company,  commissioned  a  study  to  identify components  representing  high  annual maintenance costs. The outcome: instead  of  expected high-ticket items like heat exchangers and pumps gobbling  up  dollars,  it  was  determined  that  valves  and  piping represented  up  to  80%  of the maintenance budgets allocations in certain cost centers. The  study  indicated  annual  potential  savings of up to $500,000 in valve replacement costs alone if a program could be developed to guide  purchasing and improve maintenance procedures.

OUTLINE

1.  Control Valve :
   Preface,  Components  and  function  of  valve  body,  Type  of  valve
according  stem movement, Types of plug, Plug guiding, Characteristics
flow  of control valve, Valve and its characteristics, Design features
and considerations
2.  Actuator and Positioner :
   Function  and  selection  criteria  of  actuator, Diaphragm and piston
actuator,  Type  of  actuator  action,  Electrical actuator, Function,
objective and location of positioner, Positioner action
3.  Accessories for Control Valve :
   Hand wheels or operator manual, Snubber, Limit switch, Supply pressure
regulator, Booster relay, Fail safe system, On-off relays
4.  Control Valve Selection :
   Information  for  selection  of  control  valve,  Materials of control
valve,    Corrosion    resistance    material,   Selection   of   flow
characteristics,
5.  Control Valve Sizing :
   Preface,  Flow  capacity  coefficient, Liquid service, Cavitations and
flashing, Choked flow, Damages due to cavitations and flashing, How to
avoid  corrosion  and cavitations on control valve, Cavitations index,
Gas  or  steam  service,  Gas  sizing  universal,  Sizing  for  mixing
gas-liquid,  Actuator  sizing,  Actuator  for  sliding and rotary stem
valve, Valve sizing using software
6. Â Valve Problems and Maintenance Activities :
   Noise  in  valve,  Noise Control, Fluid behaviors, Problems in control
valve  and  its  solution,  Maintenance  problems  of  control  valve,
Troubleshooting analysis, Hands-on activities


WHO SHOULD ATTEND

    * Instrumentation Engineers & Technicians
* Design and Process Engineers
* Operation, Piping, Mechanical and Plant Engineers
* Maintenance Technician and supervisors
* Service Engineers and supervisors
* Work over engineers and supervisors
* Asset Manager Team members
* Everybody  who  are  responsible  for  selecting,  purchasing,  or
repairing control valves.


METHOD

   Presentation
   Discussion
   Case Study
   Evaluation
Training Control Valves : Selection, Operation and Maintenance
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