pressure VS GPM

[offdutyfireman]

I use the GKC series 7.9gpm Udor. Bronze connecting rods, v packs. I have pumps with over 4000 hours that have never been opened up. Never had one single issue ever with udors. I was rebuilding generals every 6 months. AR, CAT and general by far are the worst pumps on the market. Landa has started making a decent one. I will not buy a pump that has been installed by a dealer. I like putting my own pumps and motors together so I know they are like the way I like them. There are still a lot of dealers that use pressure gauges to set unloaders and other things I don't agree with. Stay away from the poly braided hose and use at least 1 inch line and you can flood the pump with all the water it can flow up to about 9 gpm.

 

[Johnson]

How big around is much more important than how long it is, I've heard.

Thats what she said.......Big things come in small packages.:sarcastic: :lol:


William, why dont you like polybraid hose?

 

[offdutyfireman]

It collapses. I use suction hose.

 

[Sirocco Jerry]

multi-tasking skipped a proof-reading.

Who is Southside Pete?

I got an employee I didn't know I had! LMAO!

multi-tasking skipped a proof-reading. ..Sorry Russ ! :blink:

on the up-note..
I have a nice Special brewing for Dealers..
I'd like your opinion on it, when you get 2 min. ? :victory:

 

[Sirocco Jerry]

great post Fireman !

I use the GKC series 7.9gpm Udor. Bronze connecting rods, v packs. I have pumps with over 4000 hours that have never been opened up. Never had one single issue ever with udors. I was rebuilding generals every 6 months. AR, CAT and general by far are the worst pumps on the market. Landa has started making a decent one. I will not buy a pump that has been installed by a dealer. I like putting my own pumps and motors together so I know they are like the way I like them. There are still a lot of dealers that use pressure gauges to set unloaders and other things I don't agree with. Stay away from the poly braided hose and use at least 1 inch line and you can flood the pump with all the water it can flow up to about 9 gpm.

great post !
I always like the details.. they become statistics.
..comparing the details from the field, with those in the service dept.
is the pool I tap, for planning our future.

 

[Pat Norman]

and has a "maintenance program" including synthetic oils,
it could last much longer, more easily.

So Jerry you recommend synthetic oil for the pump? I run it in my motors but not my pump. I thought the pump was supposed to be non detergent oils, is there a certain synthetic oil you recommend?

 

[greg/sd]

Pat I have always wondered that myself. its hard to find single weight synthetic oil. I was going to try duralube or slick 50 but was scared to burn up my pumps.

 

[Sirocco Jerry]

synthetic pump oil

full synthetic 30wt pump oil..
quarts are $12.95 to $14.95
more soon..
I'm trying to make it available thu dealers :victory:

 

[Pat Norman]

Would a regular synthetic multi-weight like Mobil 1 or Syntec be harmful to the pump?

Chris you can thank me for high-jacking this thread!:smash:

 

[tomtucson]

Synthetic is awesome. I think the multiweight oils have 'detergent' and stuff and thats why they can't be used in gears

 

[Sirocco Jerry]

Right-on Tom,

..stick with "hydraulic oils" for pumps..
ISO 150 is the rating you want

 

[Gumking]

12 gpm @ 2500psi or
10 gpm @ 3000psi,

Which would you choose for flatwork. Its about time to swap out pumps on a machine and its currently powered by 24hp honda so the power levels should be adequate to put out decent performance for either pump. Anyone have either of these 2 pumps on a 24hp Honda and if so whats the verdict?

The choice should depent on the polution to be cleaned. The hydrostatic force is the same; 10*3000 psi= 30.000 HF 12*2500psi=30.000 HF:groucho:
If you need to transport a lot of dirt take the extra gpm, if you need the pressure to remove dirt take the extra pressure. This is the question!

Only if you have both you can work faster! 12GPM seems to me a lot of water for this work, the pressure is very low. It is more a rinsing system, but real cleaning could be done on a better way. Better double the pressure and less water? I'm from the old world, and sometimes we think differtent but with your specs we rinse tanktrucks!

If I calculate the power for 12*2500 psi you will need 26.5HP! So your engine would be overloaded.

For the work you're in we would suggest 5000psi/6 gpm! Your HF is 30.000, the function will be the same but you save 50% on water usage. With a good burner system this combination is almost unbeatable on every cleaning job.

If you need more rinsing with less pressure use a larger nozzle. If you need the pressure use the nozzle for 5000/6 in both ways you can clean real fast note; use heat heat heat!!! At least burner capacity of 124.000 Kcal now you can heat up to boilingpoint at the nozzle at 6 gpm. Better to use two smaller boilers parallel than 1 big boiler!