Instrumentation Training Courses
Control Valve Sizing, Selection and Maintenance (VL)
Winnipeg: 25 & 26 June
It is claimed that the majority of control valves, worldwide, are not correctly sized. There will be some argument about this statement but we do know that selecting control valves for specific applications is not well understood.
So, learn how to do it right the first time – a basic understanding of the principles is all that is usually needed to solve the problem for good.
At the end of this workshop participants will be able to:
- Understand what happens inside a control valve from basic fluid mechanics point of view
- Appreciate the difference between cavitation and flashing, and know what choked flow is
- Be able to do simple calculations to determine CV values
- To recognise severe service applications and have an appreciation for the methods of tacking the problems associated with such applications
- To know about all the different types of control valves commonly in use and understand the relative advantages of each
- Choose between different characteristics on offer and specify seat leakage rates
- Be able to size actuators for linear and rotary applications and know the relative advantages of pneumatic, hydraulic and electric types.
- Have a basic understanding on how to select materials for bodies, trims, packing boxes, and gaskets
- Make use of a computer sizing program to assist with the selection of control valves
- Understand the failure modes for control valves and demonstrate new approaches to trouble shooting