i look for gear manufacturer for hydraulic pumps

[meccanicamg]

multistage pumps i.e. centrifugal multistage? .I had never heard of volumetric multi-stage masses if not sometimes those in palettes also because the volumetrics already give high prevalences. ..mixed multistage are monsters then

Just do the accounts and see how much you get out of reach and pressure. everything you can do. also experiment helps to discover the limits of technology and maybe get to patent something

 

[Ing Italy]

Yes, yes, yes, I agree... that the pulse of the flow cannot be something negative for multistage mass? But I don't know the pulse of the flow into the next stage, it seems to me to give rise to load losses to the rather high ambush that remove much of the mechanical energy of pressure acquired by the fluid...magari is a boiata what I say...

 

[Ing Italy]

I would also say that the pumps added with the multistage should have a greater npsh by receiving push-button input flow and then I would also say push button in their aspiration; combined with a rather viscous fluid I think that it can also rise the temperature sensibly and between temperature and npsh greater perhaps it would go to the danger cavitation for pumps that are usually more "tolerant" to the problem of dynamics. ..but these clearly are just personal deductions from what I studied at the unit, nothing written and certain...if there were someone who found himself experimenting with such things it would not be bad to have some comment and maybe to discuss some...I would be interested,healthy.

 

[meccanicamg]

multistage is mainly used in vacuum with air. in hydraulics you can make a stage that compensates the other if mounted in series, so as to fall in the middle of the synepatheid of the main flow thus obtaining something homogeneous. if you put them in parallel you get a sensitive increase of flow that is what you meant to do.

 

[bibi9000]

multistage is mainly used in vacuum with air. in hydraulics you can make a stage that compensates the other if mounted in series, so as to fall in the middle of the synepatheid of the main flow thus obtaining something homogeneous. if you put them in parallel you get a sensitive increase of flow that is what you meant to do.

so which pump economical recommends:
with capacity 4/6 liters/min for a 3000giri motor 20 bar max
What pump do you recommend me, lobes, gears to insert everything immersed in oil or other types of pumps?? ?

everything must be economical, indeed the cheapest possible

 

[PierArg]

so which pump economical recommends:
with capacity 4/6 liters/min for a 3000giri motor 20 bar max
What pump do you recommend me, lobes, gears to insert everything immersed in oil or other types of pumps?? ?

everything must be economical, indeed the cheapest possible

I recommend external gear pumps (they are the simplest and cheapest).

 

[bibi9000]

I recommend external gear pumps (they are the simplest and cheapest).

Thank you.. .

 

[bibi9000]

I would add a further question: but the helical gears, I seem better, I noticed a type of bosh that eliminates the pulsations and are with round and helical teeth, you tell me that the production of these gears costs me much more than the standard? ? ?
distinct greetings.
Thank you very much

 

[PierArg]

I would add a further question: but the helical gears, I seem better, I noticed a type of bosh that eliminates the pulsations and are with round and helical teeth, you tell me that the production of these gears costs me much more than the standard? ? ?
distinct greetings.
Thank you very much

hi, helical gears are mainly for noise reduction...if you see the manufacturers put them on the market with names "silence", "whisper", etc.
on gear pumps the problem of cleaning is not very sensitive because the flow is more "continuous".
This problem you have on piston pumps, palettes, centrifugal pumps. . This phenomenon on gear pumps can be neglected.

perhaps by pulsations you mean vibrations and not pulse of flow. the bike, being even more continuous, reduces mechanical and sound vibrations.


with the "own production" of helical gears, especially if your product has to be marketed, you would have serious patent-related legal problems.

 

[otxboc]

for the production of test gears from saviors srl

 

[PierArg]

for the production of test gears from saviors srl

instead try to read the rules :mixed:
first you have to show up in the appropriate area.

and I don't know why but I think that "salvatrori srl" and otxboc are somehow "correlati" :biggrin:

 

[PierArg]

because I'm not a fool and a minimum of intelligence I have, doing a googleata on your name "otxboc"known as you have some propensity for internet ads to "commercial space".
http://www.gliaffidabili.it/p/otxboc-assistenza-pc-bologna
http://feedback.ebay.it/ws/ebayisap...lfeedback=vedi tutti i i fedback&myworld=true
http://forum.telefonino.net/archive/index.php?t-652741.html(you even offer for hand and life deliveries to a virtual auction....wooooooooooowwwwwwwwwwwwwwwwwww)


Are you the king of e-commerce?!? ! ! ? !

 

[meccanicamg]

I would say that helical teeth gears as it is known serve to reduce noise. the disadvantage is that add axial force. could come convenient for special channeling. dentate wheels already made them from any hardware. You're making a hole for a tongue. brake the iron block to house the trees with the gears. Put 4 bronzine and call it back. It costs very little and does his job.

 

[otxboc]

We're related. ! !

 

[PierArg]

We're related. ! !

So what's wrong with it?