Valve Maintenance

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  • Fees : 2900 $
  • Date 23 Jun 2019
  • Location Dubai, English

Valve Maintenance

 

Course Description  

 

Valves usually appear to be simple in form and operation, such as those of the manual on/off, check, throttling or fixed types etc.   It will be discovered that even these components are frequently installed improperly throughout the industry.  Students will learn how components, such as pressure relief valves, have been developed to meet specific applications, i.e., system back pressure and it’s associated potential adverse affects.   The consequences of not understanding their basic designs will be shown. 

 

Many control valves and regulators are so complex that they are complete systems within themselves.  Trouble shooting and resolving problems associated with them, can challenge the best engineer or technician.

 

This seminar is designed to include ; valve selection and specification, valve maintenance, valve design and application theory.  It also includes advice on selection, specification, maintenance and the repair of many differing types of valves.

 

This five days’ course is primarily for those who are new to the field but it will also serve as a refresher course, for those who have many years’ experience.

 

 

Who Should Attend?

 

This seminar is intended for ; new graduates involved in valve technology, selection, maintenance or inspections.  It is also designed for those who are involved and need to understand the purchasing specifications required to  ensure the prompt delivery of a product, which is reliable and of good quality.

 

 

Course Support:

 

This course is supported by encouraged interaction amongst all participants. Considerable emphasis is placed upon maintenance, trouble shooting by discussing case studies and by practical experiences.

                                                                                                                                                   ‘Hands on’ instruction will be given if, the client can provide some examples of different valve types and workshop facilities to allow the dismantling, examination and explanation of the operation of the valve samples provided.

 

The course also includes images of many valve types presented in computerised format.  This should aid the understanding of the operation of the valves.

 

 

 

 

 

Course Learning Objectives:

 

  • Understanding how the basic valve types function, either locally or remotely operated.

 

  • Understanding why different valve types are selected for specific services.

 

  • Appreciate cavitation, it’s causes, effects and treatment.

 

  • Appreciate flashing, it’s causes, effects and treatment.

 

  • Appreciate noise, it’s causes, effects and treatment.

 

  • Selecting and specifying the valve body.

 

  • Selecting and specifying the valve trim.

 

  • Understanding why some correctly specified valves are expected to pass process media, even when newly installed.

 

  • Understanding the importance of correct valve stem packing and seals.

 

  • Understanding the importance of correct valve selection, sizing and the potentially tremendous costs of incorrect valve selection.

 

  • Understanding the operation of common valve actuators and the importance of their correct selection.

 

  • Understanding the potential problems/dangers of re-allocating valves to other duties.

 

  • A review of basic control loops and how they function.

 

  • Pneumatic or electronic monitoring and control systems, their advantages and disadvantages.

 

  • Understanding the importance of correct valve isolations.  What procedures to use and potential consequences of the use of incorrect procedures to personnel and plant.

 

  • Hazardous area classifications.

 

 

 

 

 

 

 

 

Course Outline:

 

 

Day One:

 

  • Introductions and administration arrangements.

 

  • Review of the types and functions of valves, for example, Globe, Gate, Plug, Ball, Butterfly and Diaphragm etc.

 

  • Valve selection for the specific functions.

 

  • Discuss valve cavitation ; it’s cause, effects and treatment.

 

  • End of day review.

 

 

Day Two:

 

  • Process media flashing ; it’s cause, effects and treatment.

 

  • Valve noise ; it’s cause, effects and treatment.

 

  • Selecting and specifying the valve body and it’s material of construction.

 

  • Selecting and specifying the valve trim and it’s material of construction.

 

  • Valve body end connections.

 

  • End of day review.

 

 

Day Three:

 

  • Valve stem packing and seals.

 

  • Control valve characteristics.

 

  • Valve selection and sizing.  The importance of getting it right.

 

  • Re-using valves for other services.

 

  • Common valve actuators and how they operate.

 

  • End of day review.

 

 

 

 

Day Four:

 

  • A review of basic control loops and how they function.

 

  • Common valve symbols.

 

  • The importance of understanding P & I D’s, to gain the information they contain.

 

  • The advantages and disadvantages of pneumatic monitoring and control systems versus electronic monitoring and control systems.

 

  • End of day review.

 

 

Day Five:

 

  • Valve overhauls and general maintenance.

 

  • Valve and plant isolation procedures and what can go wrong if these are not applied correctly.

 

  • Hazardous area classifications.

 

  • Safe working procedures.

 

  • Review of all topics covered.

 

  • Course summary and evaluation.

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