Accumulator, Prochem 405.

[Becker]

I don't know anything about these things.

But I replaced mine today.

On the side they say precharged at 250 psi.
In the top is a valve much like a bike, auto.

So the old one I pressed the needle just to see what would happen. Nothing.
So I thought, what the heck, I'll hook it up to a hand pump and see if it hold pressure.

With each pump, water and air was forced out the bottom.
Guessing sure enough it is toast?

 

[Able 1]

What issues were you having with it?

 

[Becker]

Pulsing pressure.

Thought maybe the pump needed a rebuild. Joe at JonDon north knows the prochems.
I asked him for a rebuild kit, he suggested the accumulator.

Pulsing is gone.

Pricey heavy part.

 

[Able 1]

Yeah, what are they like $180? I was going to get one once..

 

[Becker]

Oh I got the Jondon discount. $218.00

 

[Able 1]

Ouch! The pulsation never bothered me much.. I think it's there to protect the pump, which I don't believe either(plenty of give in the hose).

 

[Lee Stockwell]

https://www.kleen-ritecorp.com/p-1589-giant-stainless-steel-accumulator-model-22050a.aspx

 

[dgardner]

Is it this one? They are rebuildable.

 

[dgardner]

Precharging to the required pressure will be the trick.

 

[Lee Stockwell]

My nephew has a fire extinguisher business, always has tanks of nitrogen for charging them.

 

[Lee Stockwell]

New bladder and valve assy under $20. Whole accumulator $80 or so.

 

[Becker]

Like I said I got the JonDon discount.

Maybe I'll rebuild the old and have it on hand, just in case.


YEs, like the one pictured above.


....

 

[Shane T]

Pulsing pressure.

Thought maybe the pump needed a rebuild. Joe at JonDon north knows the prochems.
I asked him for a rebuild kit, he suggested the accumulator.

Pulsing is gone.

Pricey heavy part.

I've never run an accumulator and the only time I've had pulsation issues it was the pump valves. Is it possible that the new accumulator masks the pump problem?

 

[Desk Jockey]

If you rebuild it make sure the interior is smooth and clean inside or the bladder will be punctured easily. Bead blast it if you have the capability.

New is the best idea because the others will corrode if water is getting in there over time. Motorcycle shop can charge the rebuild. The charge should be half the operating pressure when cleaning.

You go too long time without a pulsation dampener or accumulator (on a PC unit) and its going to damage something in your system. We've done it. I blame it for taking out a pump and an exhaust HE . Much cheaper to replace the accumulator.

 

[Steve Lawrence]

We Butler owners have it good. Just call them and order a rebuilt nitrogen pressurized one. Swap it out. Around $60 last time I did it. Yes, it softens the pump pressure and evens out your flow. Supposed to prolong pump, hoses, etc.

 

[GeneMiller]

Rebuilding rarely lasts for me. Even though they are stainless the bladders don't last I guess because I don't have a way to bead blast them. The 80 is cheap enough but you'll have to drop the pressure. They come charged to 800 psi.

Gene

 

[Mark Saiger]

We Butler owners have it good. Just call them and order a rebuilt nitrogen pressurized one. Swap it out. Around $60 last time I did it. Yes, it softens the pump pressure and evens out your flow. Supposed to prolong pump, hoses, etc.

Just swapped out one yesterday on my Butler and one 2 weeks ago on the Butler the son in law runs.

Took me about 5 minutes....

Boxed up the old and sent back to Butler for exchange today.

 

[Becker]

I took a look at the old one today. Could not even budge the snap ring.
I'll toss it. Not worth messing with it.

Was easy to replace.

 

[GeneMiller]

A little lube and then tap the snapring around. A nice pair of snap ring plyers will take it out. No lube and tapping and most likely the ear will break off

Gene

 

[Becker]

blah, not worth it.

I have snap ring pliers, but 1st tried needle nose that fit the ring perfectly.

Mostly I wanted to take it apart cuz I like to see how things work.

Guessing it is original, 1996 I think.

 

[Lee Stockwell]

A shot of PB Blaster 3 or 4 minutes before trying.

Snap ring pliers are best, they pull in the same plane as the ring slot. Needle nose don't.

Replace with NEW snap ring.

 

[SamIam]

Pulsing pressure.

Thought maybe the pump needed a rebuild. Joe at JonDon north knows the prochems.
I asked him for a rebuild kit, he suggested the accumulator.

Pulsing is gone.

Pricey heavy part.

Dude they make pulse dampening hose under $50 way cheaper then an accumulator they last longer to

 

[bob vawter]

forty years of CC'in and i never have even SEEN one.....why the need???

 

[Lee Stockwell]

forty years of CC'in and i never have even SEEN one.....why the need???

Just proves the adage about an old dog.