CAT Pumps Same but Different?

[Earl Weiss]

Took overr a place with D & S set up. Looked like it originaly had Giant pumps and was being Changed over to CAT 5 CP2120 W Over time.

So I continued on this path. I Note some are using CAT 310 Specs are similar. What are the pros and cons of each?

Other suggestions for replacement?

 

[I.B. Washincars]

I've owned many 310s and 5CPs. The 310 is more reliable, but is harder to work on. That being said, I am slowly phasing out my Cats for Arimitsu.

 

[Earl Weiss]

I've owned many 310s and 5CPs. The 310 is more reliable, but is harder to work on. That being said, I am slowly phasing out my Cats for Arimitsu.

Please educate me (us).

Why? Price? Dependability? Ease of Service?

What model #?

Supplier?

 

[MEP001]

310 and 5CP2120W use the same seals and valves, but the latter don't seem to last as long. Ours was built with 5CPs, and in five years I've replaced all the original manifolds once under their warranty. I'm replacing the pumps with Generals as the replacement manifolds fail. I'm making that switch mainly due to price - Generals are more than half as good as Arimitsu and coss less than half as much. They're also a lot quieter than the 5CP. If they're not neglected they're easy to service, but I've worked on quite a few that had calcium build-up or corrosion and needed a special slide-hammer extractor to remove the seal casing, but it's not hard to keep them from getting that bad.

 

[phred113]

I'm making that switch mainly due to price - Generals are more than half as good as Arimitsu and coss less than half as much. They're also a lot quieter than the 5CP. .

You are kidding, right?
My Dultmeier catalog shows the Arimitsu 516, the pump I.B. has talked about switching to, for $ 479.00. The same catalog shows the CW2040 at $ 529.00 and the HTS2215S at $649.00. You must have a different source. You are correct about the GP pump being lower quality than Arimitsu.

Earl.
Model 516 is the same speed, performance, and size as Cat 310. Arimitsu is the #1 car wash pump company in Japan. The Japanese company that makes the Cat 310 is not.
I like the Arimitsu because the pumps are the quietest around, have 100% stainless steel valves (no plastic cages to break), the valves do not have o-rings that pit and washout, do not require special tools to service, and the folks there are really helpful.
Maybe Greg will chime in, maybe not.
The 310 is a 70's piston pump designed into a plunger pump.
The 5CP is a pump made like a GP (inexpensive). Take them a part and look.
You will wonder why Cat can charge so much for the 5CP.

 

[Earl Weiss]

Sonny's shows an Arimitsu 313 with a kit to retro fit the CAT 310 for $459.00. Mounting rails are $24.00.
What's the diff between the 313 and the 516?

I note the 313 specs are 5.5 gpm, 1450 psi and max 4 HP whereas the Cat 310 is 4 gpm and 2200 psi at 950 rpm. is the 516 closer to the 310? Does it make that much difference when coming out of a SS gun since we only seem to run at 1000 psi anyway?

 

[phred113]

The 313 is for 4 HP max. and runs faster than 310. Model 516 seems to be the same as 310 and mounting rails are a drop in for a 310. Maybe I.B. can shed some light on the differences. I would recommend the 516 because it is bigger and easier to plumb - the belt guard covers one of the inlets of the 313 I saw installed. The 313 has plastic valve cages like the Cat.
I have been told the 313 is the #1 selling car wash pump in Japan, however.

 

[I.B. Washincars]

I picked the 516 because I had a super bay and I wanted to pump 5 GPM at 1500 PSI. It does it easily and fits in the footprint of a 310/5CP. You can see one of my pump stands in the Arimitsu retro-fit brochure on their web site. The 530 Cat would not fit and was much more expensive, but I wasn't considering them anyway since James was the person that got me out of a bind with a General some time earlier. Also, I don't have washed out heads every time I turn around. A bonus is that they are much quieter. I have several going on 6 years old with their original seals.

 

[jimbeaux]

Pump Change Over

I have been phasing out my cats to the 313 Arimitsu pumps also. The 313 has done everything I needed but I switched to the 311 Arimitsu when they came out. The main reason is they come equipped with the stainless valves & cages. Don't know if they are easier to work on because I've never had to open them up.
I even had an Arimitsu 1110 installed instead of the Cat 2530 on the new D&S Odyssey I bought last spring . So far, it has been quiet & flawless.

 

[MEP001]

My Dultmeier catalog shows the Arimitsu 516, the pump I.B. has talked about switching to, for $ 479.00. The same catalog shows the CW2040 at $ 529.00 and the HTS2215S at $649.00. You must have a different source. You are correct about the GP pump being lower quality than Arimitsu.

That's a big difference from the last time I looked - I could get a General T1011 for $329, and the Arimitsu 516 was more than twice that. Kleen-Rite's price on the T1011 has gone way up to $433. I guess it's too late though, I really don't want three different pumps in there (Four counting the auto).