hydraulic flow rate question

[dal929]

Can someone tell me exactly what this means?? Pump flow rate (l/min) 2 x 17,2 / 6,7

It's out of the manual for my mini. I would guess 2 stage pump 17 lit per min??

Thanks
Daltro

 

[bulldogshotgun]

its not written very clearly, but i would guess they mean 2 pumps one at 17.2 L/Min and one at 6.7L/Min
could be a charge pump and main pump, or power steering pump and hydraulic pump, hard to say without knowing the system.

thats my shot in the dark anyway.

 

[MHarryE]

Could also mean two 17.2 lpm pumps and one 6.7 lpm pump. I assume your mini has ll gear pumps.

 

[dal929]

There's only a single pump but I recall being told it's a 2 stage pump and those 17 & 6 #'s must be the respective flow rates as you guys point out.

 

[BukitCase]

You didn't say which mini you have, but the euro community likes to replace decimal points with commas - if I had to guess, I'd say that "2 x 17,2 / 6,7" means 2 stage, low pressure is 17 POINT 2 L/min, high pressure is 6 POINT 7 L/min.

Just a guess... Steve

 

[Leejohn]

How many line are hooked to the pump?

 

[dal929]

I haven't looked at it in a while but I believe it's got 2 lines coming out of the pump, I'll have to confirm the next time I'm by the machine. It is a Yuchai YC15 - Chinese made.

BukitCase - What does the Point mean.

Thanks for all the suggestions so far guys

 

[Leejohn]

Well it's a 2 stage, if it had 3 then it would be 2 pumps in one unit.

 

[BukitCase]

Sorry, I was making the POINT that in Europe, the number 6,3 is used where in the US, that number would be written 6.3 - here, we pronounce it six POINT three, I'm not sure how six COMMA three would be pronounced.

Maybe if you were to complete your profile with a general location, we could communicate better :thumbsup: ... Steve

 

[George G]

No 2-stage pumps on an excavator. 2-section pump, yes. 2-stage pump,no. You would have a real hard time trying to control a excavator or backhoe or just about anything elce with a 2-stage pump on it.