Selection between a PD pump and a Sundyne Pump
Selection between a PD pump and a Sundyne Pump
(OP)
Service; Lean Amine Charge pumps
Flow 54.5 USgpm,@ 1668 psig discharge
Triplex type plunger pump (75 hp)API-674
Belt drive, pulsation dampeners included
Sundyne pump (200hp)LMV-331, API-610
gear box included
Can someone help me with selection of the pumps (Recip or Sundyne)and why?
Flow 54.5 USgpm,@ 1668 psig discharge
Triplex type plunger pump (75 hp)API-674
Belt drive, pulsation dampeners included
Sundyne pump (200hp)LMV-331, API-610
gear box included
Can someone help me with selection of the pumps (Recip or Sundyne)and why?





RE: Selection between a PD pump and a Sundyne Pump
The only "comparable" services where I used a triplex plunger pump of the configuration you describe was high pressure wash water. The product was sour water and the pump was nothing but trouble. We ended up tearing it out and putting in a stacked diffuser (tie-rod) multi-stage centrifugal that has worked very well. I don't care for plunger pumps.
My preferences for this service would be (in order from best to worst):
1. Axial split multi-stage centrifugal
2. Stacked diffuser (tie rod or barrel) multi-stage centrifugal
3. Pitot tube centrifugal (RotoJet)
4. High speed Sundyne
5. Plunger pump.
Johnny Pellin
RE: Selection between a PD pump and a Sundyne Pump
Otherwise, use an axial-split case BB3 or similar. Sundynes are tricky to get right, and running outside of their best efficiency range is asking for seal and bearing trouble.
RE: Selection between a PD pump and a Sundyne Pump
Never use plunger pumps on any applications where the fluid contains any solids or is hazardous. For continuous operation make sure that the no. of stokes (plunger or piston pump) does not exceed 350 / minute. If you obey this, a triplex plunger pump will be a nice piece of equiment.