High Pressure Water Blast
High Pressure Water Blast
(OP)
Hi All,
We have developed a system for a customer which blasts product at up to 5500PSi. Well atleast that is what the pump can deliver, what we have been asked now is a way of testing the water pressure exerted on the actual part being blasted. Our take on it is that once the water leave the nozzles it becomes a force on the part. What was required in the URS was a pump capable of 5500psi. SO with that, can anyone suggest a test which would determine the 'pressure' exerted on the part? It's not something we would be too familiar with..
We have developed a system for a customer which blasts product at up to 5500PSi. Well atleast that is what the pump can deliver, what we have been asked now is a way of testing the water pressure exerted on the actual part being blasted. Our take on it is that once the water leave the nozzles it becomes a force on the part. What was required in the URS was a pump capable of 5500psi. SO with that, can anyone suggest a test which would determine the 'pressure' exerted on the part? It's not something we would be too familiar with..





RE: High Pressure Water Blast
You are asking about significantly higher water pressures and a much more valuable component. Hydraulic suppply companies offer many high pressure low displacement pumps - but you need to verify that the pump you are getting from any given supplier is going to work with water and not hydraulic oil. (Cooling rates, lubrication issues internally, corrosion issues, compatibly with filters and gaskets, etc. )
Rent a very high pressure washer from a tool rental company and measure the force (impact loads) at various distances before you spray your customer's expensive parts and pieces.
Knowledge does not always come from a book or Code or guesses or your "take on it"
RE: High Pressure Water Blast
You stated, "We have developed a system for a customer which blasts product at up to 5500PSi," which implies that the surface pressure on the "product" needs to be 5500 psi, not that your line pressure be 5500 psi. You can trivially spoil the output pressure with too large a nozzle, so I can understand why the customer might think that you are trying to pull a fast one on him. You need to review your specification more closely. What does it say, exactly?
TTFN

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RE: High Pressure Water Blast
Put some magnets on your fuel line and you will get "up to 15% mpg increase*."
* = between 0% and 15%
Maybe this should be posted in the language forum first to determine whether or not you have met the spec, then worry about testing and possibly modifying the equipment.
RE: High Pressure Water Blast
RE: High Pressure Water Blast
http://www.tekscan.com/5076-pressure-sensor
http://www.tekscan.com/products/industrial/pressur...
since the resolution is better than 0.1 in, you can even see what the pressure distribution looks like.
TTFN

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RE: High Pressure Water Blast
Valuable advice from a professor many years ago: First, design for graceful failure. Everything we build will eventually fail, so we must strive to avoid injuries or secondary damage when that failure occurs. Only then can practicality and economics be properly considered.
RE: High Pressure Water Blast
see att.
1gibson. "Up to" 5500 psi means a maximum of 5499 psi
Independent events are seldomly independent.
RE: High Pressure Water Blast
Here is a 1 question pop quiz, multiple choice, you can get from 0 up to 100 points.
What is the highest possible grade on this quiz?
A) 99
B) 100
C) 5500
D) 0
But, wrong forum for that.
RE: High Pressure Water Blast
My point was not addressing the literal specification, but the intent, which is that measuring an exit pressure of 5500 psi does not in any way assure that there's anything close to 5500 psi at the surface of the object being sprayed.
TTFN

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RE: High Pressure Water Blast
Independent events are seldomly independent.