Cat pump 310 vs 5CP2120W

[JustClean]

Hi all,
I've got all 5CP2120W pumps in my plant room. Can I just replace them with 310 pumps without any problems? I can't really see much of a difference. Why would a SS manufacturer choose one over the other anyway? Thanks & cheers Justclean.

 

[I.B. Washincars]

The 310 is probably more reliable and has a long track record. The 5CP is easier to service and does not require a special tool to remove the seals, whereas the 310 does. The 5CP also has a lifetime warranty against washout on the original head, which would be a plus from a marketing side. It's pretty much a wash. Swapping between the models usually is just a bolt-in job, no modifications needed. That being said, I have swapped out all of mine over the years and replaced them with Arimitsu.

 

[DiamondWash]

What Arimitsu pump model do you have?

 

[cantbreak80]

Gotta agree with I.B.
One of my original Cat 530s cratered last year (too light be be a boat anchor).
I swapped it with a Arimitsu 516 and am a happy camper...no mods needed to the pump station when using their rail kit!
I believe the 310 conversion uses their model 313 and rail kit.

 

[I.B. Washincars]

I'm using model 516. I have 18 of them in service.