I need to know about the pumps which use to incease water pressure !
have any one had some information ?

In article . com,
"amir" wrote:

I need to know about the pumps which use to incease water pressure !
have any one had some information ?

I don't know anything the actual pumps used for water jet cutting...
however, I do know pumps don't produce pressure. Pumps produce flow.
resistance to this flow is what causes a pressure rise.

I'd also like to know more about water jet cutting... was even inspired
to take a quick look here...

http://en.wikipedia.org/wiki/Water_jet_cutter

Erik

"amir" wrote in message
ups.com...
I need to know about the pumps which use to incease water pressure !
have any one had some information ?


Just pumps that pump water. Like on a water blaster. We used water
blasters underwater to clean off jacket welds prior to photography to
inspect for cracking. They are an awesome device that takes it right down
to the steel.

Of course, in our youthful ignorance, we felt the stream to see how strong
it really was. ................. once!

Contact a manufacturer for a spec sheet.

Steve

"amir" wrote:

I need to know about the pumps which use to incease water pressure !
have any one had some information ?

What do you need to know? The only one I ever used had a .875 dia
tungsten carbide shaft driven by a 6" hyd cylinder to provide a 47:1
ratio of pressure increase relative to the pressure of on the 6" hyd
cylinder that drove it. There was a pump section on both sides of hyd
cylinder. Typical inlet and outlet ball checks where used. Life was
short.

Accumulation to buffer the reversal of pump so pressure didn't fall
off was by a 3-4" dia chunk of stainless pipe with a 1" dia bore.
Water is compressable and that pipe did it just fine.

We operated at ~ 50,000 PSI flowing through 0.005 - 0.008" saphire or
diamond orifices.

Ours was made by Ingersol Rand and the other major maker is and likely
still is Flow Systems. I-R called these pumps intensifiers.

Not a lot of flow with these things but they did a dandy job of
profiling fiberglas headliners for automobiles. Also did a fine job
of eroding waterjet fixtures.

Wes S

"amir" wrote in message
ups.com...
I need to know about the pumps which use to incease water pressure !
have any one had some information ?

Flow Systems and Ingersol Rand are the two most popular waterjet systems.
You're talking 3,000 psi with a 40 HP motor and supersonic velocities as the
water goes through a ruby jewel with a .015 orifice. Abrasive material is
added for cutting through anything including carbide six inches thick. 30
IPS on .250 Aluminum.

One advantage to this machine is there is no HAZ (Heat affected zone) on any
material and a surface finish close to 120 or better.

"Wayne Lundberg" wrote in message
...

"amir" wrote in message
ups.com...
I need to know about the pumps which use to incease water pressure !
have any one had some information ?

Flow Systems and Ingersol Rand are the two most popular waterjet systems.
You're talking 3,000 psi with a 40 HP motor and supersonic velocities as
the
water goes through a ruby jewel with a .015 orifice. Abrasive material is
added for cutting through anything including carbide six inches thick. 30
IPS on .250 Aluminum.

One advantage to this machine is there is no HAZ (Heat affected zone) on
any
material and a surface finish close to 120 or better.

Either my memory or my literature of those days is wrong... but 60,000 psi
sounds about right as the previous poster mentioned. I think it's about one
gal per min water consumption but the water has gone through a dozen filters
before hitting the orifice.

"Wayne Lundberg" wrote:

Either my memory or my literature of those days is wrong... but 60,000 psi
sounds about right as the previous poster mentioned. I think it's about one
gal per min water consumption but the water has gone through a dozen filters
before hitting the orifice.

We did non-abrasive waterjet. I haven't a clue what abrasive jet
worked at pressure wise.

Wes
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On Fri, 10 Feb 2006 02:28:07 -0800, "Steve B"
wrote:

Just pumps that pump water. Like on a water blaster. We used water
blasters underwater to clean off jacket welds prior to photography to
inspect for cracking. They are an awesome device that takes it right down
to the steel.

Of course, in our youthful ignorance, we felt the stream to see how strong
it really was. ................. once!

And how many stitches did it take to reassemble the fingertip? ;-)

-- Bruce --

--
Bruce L. Bergman, Woodland Hills (Los Angeles) CA - Desktop
Electrician for Westend Electric - CA726700
5737 Kanan Rd. #359, Agoura CA 91301 (818) 889-9545
Spamtrapped address: Remove the python and the invalid, and use a net.

On Fri, 10 Feb 2006 21:36:49 -0500, wrote:

"Wayne Lundberg" wrote:

Either my memory or my literature of those days is wrong... but 60,000 psi
sounds about right as the previous poster mentioned. I think it's about one
gal per min water consumption but the water has gone through a dozen filters
before hitting the orifice.

We did non-abrasive waterjet. I haven't a clue what abrasive jet
worked at pressure wise.

Wes
60k-60k psi is normal and the abrasive is usually a fine garnet
powder added to the jet.

Gunner



"A prudent man foresees the difficulties ahead and prepares for them;
the simpleton goes blindly on and suffers the consequences."
- Proverbs 22:3

Right - and more exotic materials depending on the finish and material to be
cut. Just out of my budget range :-)

Martin

Martin Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
NRA LOH & Endowment Member
NRA Second Amendment Task Force Charter Founder



Gunner wrote:
On Fri, 10 Feb 2006 21:36:49 -0500, wrote:


"Wayne Lundberg" wrote:


Either my memory or my literature of those days is wrong... but 60,000 psi
sounds about right as the previous poster mentioned. I think it's about one
gal per min water consumption but the water has gone through a dozen filters
before hitting the orifice.

We did non-abrasive waterjet. I haven't a clue what abrasive jet
worked at pressure wise.

Wes

60k-60k psi is normal and the abrasive is usually a fine garnet
powder added to the jet.

Gunner



"A prudent man foresees the difficulties ahead and prepares for them;
the simpleton goes blindly on and suffers the consequences."
- Proverbs 22:3

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