Displacer connection taps in boiler application

[surineman]

Everyone,

I have a magnetrol pneumatic level transmitter.
I do not have any model or other information for it.
I just know that is side and bottom connection.( I can not see it because of tracing around it but piping drawing shows that and we assume it is right)

It is installed on a 10" overflow pipeline which is a mix of water and vapor.
the existing distance between tap points are 36".
Process wants to relocate this to somewhere else, and because of restrictions in new location they do not have 36" vertical pipe length to do it and want to decrease the tap points on pipe about 8".

I am not sure if this is going to hurt the measuring (i do not have any more information about this situation).

The XT signal is going to a pneumatic controller to control a valve.

please help me in any way. links, ref., advice, etc.

Regards and thanks

 

[JimCasey]

Your upper connection has to be to the gas space in the vessel.
The lower connection has to be below your control point.
You cannot slope the liquid connection from the process toward the instrument-it has to be self-draining.
You really want your process setpoint to correspond to the 50% mark on the instrument.

Dig the instrument out of the insulation, get the model numbers off of it, and get the Instruction manual from Magnetrol.