Sundyne Vs Multistage Pump. Sundyne Vs Multistage Pump. Mitesh87 (Mechanical) (OP) 15 Feb 18 06:26 Hello, I want to make (General) presentation on Sundyne vs Multistage pumps. Can you please provide any content or article so that i can add up in my presentation? Thanks in advance. RE: Sundyne Vs Multistage Pump. JJPellin (Mechanical) 15 Feb 18 12:49 I am not aware of any published articles on this comparison. Why are you limiting your options to those two? For a classic high head, low flow application, I would consider pitot tube pumps as an option. Search this forum for the keyword Sundyne and you will find a number of threads that address their strengths and weaknesses. Johnny Pellin RE: Sundyne Vs Multistage Pump. mk3223 (Mechanical) 18 Feb 18 19:23 May consult with the vendors of two pumps, collect the design papers form them, and use on your presentation. Good luck.