Advice on pumps, rebuilding pump stand

[slash007]

I just bought a used six bay JC Super Saver pump stand. It is in good shape, but missing 4 of the pumps/pulleys. The motors are all there and they are 5hp 3phase. The two pumps that are there are Cat 5cp2120 pumps. Since I have to buy new pumps/pulleys, I am wondering if I should stick with the 5cp pumps, or switch over to Arimitsu. I like that they are quiter and seem easier to service. I can also go higher on the pressure if I wanted. If I did, not sure if I should get the 313 or 516? Any advice/opinions on my best course of action?

Thanks.

 

[I.B. Washincars]

I'm using all Arimitsu 516s. They will drop in place of a 310 or 5CP, but have the pumping capacity more like a 530 Cat. Greg is always available to lend a helping hand. The other pump mfrs. don't seem to know this forum exists.

 

[soapy]

I agree with Pat.

 

[slash007]

That is what I was leaning towards. Would you get 4 and keep the 2 cats, or go ahead and replace all six? Also, what pressure do you run yours on Pat?

Thanks.

 

[I.B. Washincars]

1300 with 06 tips. I have one super bay that I run at 1500 with an 08 tip. Do whatever you want regarding the 5CPs. Run them til the heads wash out or sell them on ebay. If they don't need any repair you should be able to get at least a couple hundred apiece for them.

 

[slash007]

The heads might already be washed out lol. I bought the stand after it sat for a year, so I never saw it in action. Do you know what pulley I would need for the 516 pump? Or is there just one? What about the motor pulley. Would I have to replace that one as well if I wanted to run at 1300?

 

[DiamondWash]

Check out Greg's Video on the Arimitsu upgrade.

https://www.youtube.com/watch?v=_JHWckbuh8g

and some technical info:

https://www.youtube.com/watch?v=ytfOzMcchNg

 

[I.B. Washincars]

The heads might already be washed out lol. I bought the stand after it sat for a year, so I never saw it in action. Do you know what pulley I would need for the 516 pump? Or is there just one? What about the motor pulley. Would I have to replace that one as well if I wanted to run at 1300?

Just let Greg advise you. He will probably want the motor pulley size, tip size, and desired pressure. I don't think I had to change the motor pulley for 1300/06, but did for the 1500/08. The main reason for pump pulley change is because Arimitsu uses a different size crankshaft. It seems like they would make one with the same diameter as a Cat for retrofitting.

 

[slash007]

Will do, thanks guys. Is KleenRite the best place to buy these, or can they be had cheaper elsewhere?

 

[Jeff_L]

FWIW, As my Hypros wash, out I've been replacing them with Arimitsu 516. Love them, quiet, no issues. As recommended, contact Greg, he'll walk you through everything you need.

 

[Kevin James]

The best price we found on the Arimitsu 516 pumps is from Randy here on the Forum. He has a kit that comes with the 516 pump, “H” Bushing, Rails and oil. We reuse our pulley. You need the “H” bushing because the pump shaft is different on the Arimitsu 516 pump than it is on the Cat pump.

 

[cwguy.com]

Seriously.... for more expensive seals and >$200 a pump is the Arimitsu 516 pump just maybe quiter? I never understood this argument when everyone's Cat pumps are cheaper and last the same or longer.

Also I would wear ear protection to get a pump that lasted 10 years for $100?

 

[I.B. Washincars]

Seriously.... for more expensive seals and >$200 a pump is the Arimitsu 516 pump just maybe quiter? I never understood this argument when everyone's Cat pumps are cheaper and last the same or longer.

Also I would wear ear protection to get a pump that lasted 10 years for $100?

I don't know where you are getting your prices Eric, but a 313 Arimitsu with the pulley and rails is only $22.50 more than a bare 5CP Cat. If you are comparing a 516 to a 310 or a 5CP you are not comparing apples to apples.

 

[cwguy.com]

I don't know where you are getting your prices Eric, but a 313 Arimitsu with the pulley and rails is only $22.50 more than a bare 5CP Cat. If you are comparing a 516 to a 310 or a 5CP you are not comparing apples to apples.

My prices might not be correct I did not check? But using your same logic.... The Arimitsu 313 is not comparable to anything..... it maxes at 1200 psi? You are picking and choosing stats yourself? You would also have to run the 313 at max all the time.... I believe it is not even an option to purchase? That is probably why everyone purchases and recommends the 516 and never the 313 on this forum?

 

[I.B. Washincars]

My prices might not be correct I did not check? But using your same logic.... The Arimitsu 313 is not comparable to anything..... it maxes at 1200 psi? You are picking and choosing stats yourself? You would also have to run the 313 at max all the time.... I believe it is not even an option to purchase? That is probably why everyone purchases and recommends the 516 and never the 313 on this forum?

I got my stats from the same place as the price, Kleen-Rite. According to them, the 313 has a max pressure of 1500, not 1200. I feel that most pick the 516 because it is a drop-in replacement for a 310/5CP, whereas if you wanted more capacity from a Cat you would need to go to a 530 which is not a drop-in.

 

[cantbreak80]

In 2014, I purchased an Arimitsu 516 kit to replace a cratered, 30-year-old Cat 530. The kit included the 22MM H-block bushing and key, and the mounting rails. The assembly bolted and plumbed to my pump stand without modification.

I paid $774.00 which included $99.00 UPS Blue shipping. (This might have been an “ICA Show Special”?)

A bare Cat 530 from KR is currently $993.70, plus freight
An Arimitsu 516 conversion kit from KR is currently $756.70, plus freight
For the math impaired, that’s a difference of $237.00, plus freight

Arimitsu Pros:
1. Less expensive
2. Quieter
3. Direct replacement without pump stand modification

Arimitsu Cons:
1. Additional spare parts inventory required
2. Unknown longevity when compared to my Cats
3. I’ll probably have to look at the manual if it ever needs servicing

As for the quieter operation…it’s moot to me because I typically spend less than 20 minutes per day in my engine room.

 

[cwguy.com]

Okay I looked.... The three pumps are basically the same? With in <> 100 psi? So everyone would need to upgrade to a cat 530 if they wanted higher GPM or psi?

My question was really besides being quiet.... why go through all the trouble and pay more? What is an advantage?

Arimitsu 516: 705 Value kit: 116 Seal kit: 95
Cat 310: 586 Value kit: 63 Seal kit: 78
Cat 5CP2120W: 565 Value kit: 179 Seal kit: 82

Arimitsu 516 4 GPM 2300 psi
Cat 310 4 GPM 2200 psi
Cat 5CP2120W 4 GPM 2500 psi

 

[slash007]

While you guys debate pumps, I have a question on membranes lol. I want to change the 2 membranes before I install it, but not sure if I should get the cold or hot water versions. I will be using hot water, but I know that some people use the cold water version regardless. Pros/cons to each? Also, for a JC pump stand, anyone know what size membranes I need to buy?

Thanks.

 

[I.B. Washincars]

Okay I looked.... The three pumps are basically the same? With in <> 100 psi? So everyone would need to upgrade to a cat 530 if they wanted higher GPM or psi?

My question was really besides being quiet.... why go through all the trouble and pay more? What is an advantage?

Arimitsu 516: 705 Value kit: 116 Seal kit: 95
Cat 310: 586 Value kit: 63 Seal kit: 78
Cat 5CP2120W: 565 Value kit: 179 Seal kit: 82

Arimitsu 516 4 GPM 2300 psi
Cat 310 4 GPM 2200 psi
Cat 5CP2120W 4 GPM 2500 psi

Where are you getting these specs?

On K/R, they show the 516 at 5 GPM and 2500 PSI. They are not "basically the same". And no, if you want to upgrade to a 5 GPM pump you can put on a 516 and not a 530 Cat which will cost more and require pump stand modifications to make it fit.

And what is a "value kit"?

 

[cwguy.com]

Where are you getting these specs?

Same place you are....
Plus are you really using 5 GPM? I know I am not and I would not pay for a cat 530 again. Water is actually expensive.... I believe the GPM is a non selling point also? If the 516 is really 5 GPM and not 4 GPM like it states..... I do not think it actually matters?

Arimitsu site:

http://arimitsupumps.com/html/interchange1.php
For the 516 to achieve 5gpm you have to have a higher rpm and get a lower psi. Which you can actually do with a Cat 310 and Cat 5cp?

Very confusing but if you were to compare ever line aspect.... I am guessing the Arimitsu 516 is a Green Cat 5CP2120W?