stewbaby
Mechanical
- Jan 29, 2003
- 98
We have a new requirement to slowly inject our slop oil back into the Crude unit charge versus batch transfer to Crude tanks. We are temporarily using a hose pump (Watson-Marlow)to inject. Hose last about 2 months. Flow is varied by VFD from 2 to 10 GPM. Due to trash in slop oil, we do not use a flow meter. Flow rate is monitored by tank level over time.
Question:
1) Would a Progressive cavity pump be better suited? Other recommendation on pump? (using a PD type so that flow can be controled by RPM. (flow meter / spillback valves that would just get plugged up.)
2)Vendos of PC pumps..Roper? Moyno? Roper is half the Moyno...is it a case of "you get what you pay for"?
3) Flow measurement, has anyone seen success with flow meters in slop oil...we see orifice taps get trashed, PD meter vanes get torn up, and coriolis reeds plugged up.
Question:
1) Would a Progressive cavity pump be better suited? Other recommendation on pump? (using a PD type so that flow can be controled by RPM. (flow meter / spillback valves that would just get plugged up.)
2)Vendos of PC pumps..Roper? Moyno? Roper is half the Moyno...is it a case of "you get what you pay for"?
3) Flow measurement, has anyone seen success with flow meters in slop oil...we see orifice taps get trashed, PD meter vanes get torn up, and coriolis reeds plugged up.