Pulleys again

Tony Shelton

Tony Shelton

BS Detector, Esquire
Ok, I'm getting about 5.5 gpm and 1500 psi out of my TS1011 pump with the smaller pulley just like you said.

I'm using a #9 tip

Now, next question:

How small of a tip can I go to without bypassing? (11 hp motor)

Is the pulley ratio infinite? In other words If I go to a pulley 1/2 the size I have now will I get 11 gpm @ 750 psi?

If not, how far can I go?

What is the lowest HP I can go if I don't have to run a generator?

I'm thinking about making this my base unit and adding as many as three or four additional units plumbed together to allow up to 25 gpm if needed. That way I only have to turn on as many units as I need for any given job.

Right now we have to take two rigs for two guys to clean simultaneously.
 
Sure you can get 11 gpm out of your ts 1011, just eliminate the pulley and run it straight off the engine at 3600, its whatever you want Tony, the pumps there for you. Its made to spin after all, why shouldn't it be able to spin faster?
 
"forcing" volume from the pump..

Basicly, Pumps are limited in performance in these ways..

1. Beef.. gives you the "ability" to endure pressure.
don't exceed the pressure rating of ANY pump by more than 10%
and when you have questions.. call a tech.

2. Fluid Dynamics..
check-valve size, and porting within the pump "limit" its performance..
I've seen a tank-fed pump with 1/2" inlet ports do 6 gpm with long-term reliability.
If you want 7gpm, it better have bigger valves than that General has,
AND you'd still have to pressure-feed it to get that all-important long-term reliability.
So, there's a point of diminishing return on "forcing" volume from the pump.

If you have a General T/TS series, go to the catalogue, and don't exceed
the maximum flow rating of that series of pumps.. I believe that's 6.0 gpm,
or, you'll have valve problems, and seal problems......regularly.


Hey TusconTom.. ...:rotflmao1:
 
tony how many gpms are you try to get to and at what psi?
then how many per gun?
 
I think that the pumps are designed to only spin so fast because of the balancing (balanced to spin only so fast), heat generated, bearing rating (speed of turning), excess vibration (higher speeds will cause the vibration to be more causing damage), etc...

I think that you are probably at the top end of what that pump can do along with the capacity of heating water, any more gpm's and your hot water will be just warm.

We talked about plumbing together other systems.

Get a 13 hp Honda clone with a General TS2021 and you will get about 2500 psi and 5.5 gpm's with that and all that built for under $1100.00

Since you don't need that much psi, you might be able to spin that pump a little bit faster, I am not sure but maybe another .5gpm to 1 gpm out of it maybe.

With all these machines, get some "t" 's and plumb them together and just run what you need and each machine you add will give you another 5.5 gpm or run them separately so more guys can work. I would use the high pressure check valves on each of the hoses that connect to the "t".

If you want to get more work done, I would get the 1/2" hose to run up onto the roof if you are going to connect more than 2 machines together then get some "t" 's and split the flow when it is on the roof for however many guns you want to run, just have to carry the hose up there for each of the guns.

With 8gpm, you will lose about 300psi for every 100' of 3/8" hose you use, if you use 1/2" hose then you lose only like 50psi.
Using 11 or 15gpm (connecting more machines together) your pressure loss will be more.

Looks like I will finally be finishing my project within the next few weeks (13hp Honda clone with the General TS2021), just have to get the pump base, pulleys, bolt it together then measure for belts and then it is ready to go.

It will give me about 2500psi at 5.5 gpm's but that is ok for this purpose it is being built.
 
Tony, if you want to see what's inside the pump, take the rear cover off and take a peek. No sense in the parts exploding through the crankcase just for a look-see.


Sarcasm aside, 5.5 is all you'll ever SAFELY get out of that pump.


As far as running multiple guns, you're almost better off with one unit per gun as opposed to a large capacity machine for dual guns. If one of your smaller machines should break down, you can still limp along with one unit. If the big one breaks, you're packing up and going home.
 
Thanks guys. I was doing a little research last night and then I remembered there is a max rpm listed for each pump.

I was thinking the same as you Russ. I was thinking I that with the right pumps (TS1011 or similar) I could build a bank of 3 or 4 of these cold machines in addition to one hot machine for emergencies:

6.5 hp engine (lightweight, cheap, sips gas)
TS1011 pump (at 4.5-5 gpm - 1200-1500 psi)

Then I could just keep spares on hand.

Meanwhile I could have 5gpm for up to 5 operators or 10 gpm for two etc. And I would only have to use the fuel I need at the time.

It sounds more reliable than one big 30-50 hp machine.
 
I have a diaphragm pump that makes 580psi and 13gpm from an 8hp Honda electric start. It is a rig that I bought but then realized that it will not work with bleach.

Maybe that will work and I think that you can bypass what you don't use or need.
 
I like the diaphram pumps.. the are nicely reliable..
Hypro, Udor, Comet,
but not in that order when you look at parts and intial pricing.
 
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