1 reply to this topic

[hardiskuae]

HI. My question is relate it to control valves, What is ‘stick/slip’ behaviour of a control valve? and their effects on process control.

I am looking forward to hearing from you. Bye for now and have a nice day.

[jairaj]

HI. My question is relate it to control valves, What is ‘stick/slip’ behaviour of a control valve? and their effects on process control.

I am looking forward to hearing from you. Bye for now and have a nice day.

Hey there, im also not entirely sure about the slip stick action in valves but what i do understand is that it is responsible for the hystersis that occurs with a valve in a flow regime. The reason is that when moving from 100% closed to 100% open, a certian force is required along the path of the valve. This behaviour or frictional force is monitored and it can be seen that this pattern is not the same for the same valve moving from 100% open back to 100% closed. These two patterns of force should be the same however they are not. This is due to the slip stick action of the valve. I would do simple experiments to escertain the charasteristics and establish a compound understanding, i dont think thats helps you too much,
anyways, cheers and goodluck!