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How to diffuse high pressure 15,000 psi to 0 atmospheric pressure from a equipment
2

How to diffuse high pressure 15,000 psi to 0 atmospheric pressure from a equipment

How to diffuse high pressure 15,000 psi to 0 atmospheric pressure from a equipment

(OP)
A pipe contains water at 80 Deg F , pressure inside the system is 15,000 psi, if the pressure has to be released (atmospheric pr), but still needs to be conatined inside a closed chamber before releasing out on ground. How would I achieve this? can someone help.

RE: How to diffuse high pressure 15,000 psi to 0 atmospheric pressure from a equipment

Open a valve to an empty chamber capable of withstanding the pressure.
Let the flow proceed through a restrictor like the Lee Bender Jet:
http://www.theleeco.com/JETWEB2.NSF/5ba5409b0cab73...
Close the valve.
Open another valve that vents the chamber to atmosphere,
and a third valve that drains the chamber.
Let the chamber drain.
Close all valves.
Repeat until the pressure is fully relieved.


Mike Halloran
Pembroke Pines, FL, USA

RE: How to diffuse high pressure 15,000 psi to 0 atmospheric pressure from a equipment

MikeHalloran

The Lee restrictor is rated for up to 5000psi?

RE: How to diffuse high pressure 15,000 psi to 0 atmospheric pressure from a equipment

Thank you israelkk for catching that.

Ppatel1, Oops. Don't use the stock Lee part.
Do call and ask about a special, reinforced for your pressure.

What I described amounts to a DB&B manifold. It could have a special geometry allowing insertion of interchangeable throttling orifices, or it could have a needle valve or a capillary to do the throttling.

Or, if your valves are sturdy enough and open slowly, maybe you don't need a restrictor other than the valve.

Mike Halloran
Pembroke Pines, FL, USA

RE: How to diffuse high pressure 15,000 psi to 0 atmospheric pressure from a equipment

(OP)
Thanks for the feed back, it does help.

RE: How to diffuse high pressure 15,000 psi to 0 atmospheric pressure from a equipment

It really depends on how fast you need it depressurized and how much fluid has been raised to that pressure. If it is a joint of 4-inch pipe that you can take an hour to depressurize, then you can use a needle valve and a plastic bucket. If it is a cubic mile of water, that you need to depressurize in 5 minutes, then you might want to get a little more exotic.

David Simpson, PE
MuleShoe Engineering

"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
The plural of anecdote is not "data"

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