Pump seal plans, which one consume water or recirculate?

[shahyar]

Can I classify all pump seal plans based on the following criteria:
1. The seal pumps which are not using external seal flush water.
2. The seal pumps which are using external seal flush water and have not seal flush water return line (all flush water go into pump liquid).
and 3. The seal pums which are using external seal flush water and have seal flush water return line (Part of flush water goes into pump liquid and part of that returns to water tank).

I was asked to estimate water which is "consumed" and "recirculated" for pump sealing in our plant. I am not such familiar with pump seal plans and can not classify the pump seals in the said classes.

Can some one advise me about "class" of theses plans:
11, 13, 21, 25, 32, 53, 54 ?

Thanks