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Geothermal steam flash tanks or separators by vessels manufacturer.

Steam Flash Tanks

Don’t waste your energy: Recover it and save with our steam flash tanks!

Overview - Flash Vessels or Separators

A condensate flash separator vessel is the major component of a flash recovery system. Many plants use them to recover the energy that is in their condensate. The pumps push the higher pressure condensate into a lower pressure flash tank to accomplish this energy recovery. Then, at this lower pressure, a percentage of the condensate flashes. This flash steam is a useful resource. For instance, you can use it for low-pressure processes or heating. Then, there is the option to repeat the process for a second stage flash, at an even lower pressure. As a result, you have improved efficiency and cost savings. Didion Separator is a designer and manufacturer of condensate flash tanks, in addition to our separators, boiler drums, and vessels.

How do They Work?

So, let’s get into the specifics. How do our flash recovery vessels work? The process starts with the use of a tangential inlet nozzle. As a result, the condensate is put in a spinning motion as it enters the lower pressure tank. This spinning motion presses the liquid against the outer walls of the tank through centrifugal force. This results in a low-pressure vortex in the middle of the vessel, which the steam flashes into. Then, an outlet nozzle at the center of the vortex carries the flash steam up and out of the tank. Lastly, the remaining condensate drains out the bottom of the tank. Making use of this spinning motion allows us to flash the steam at a high velocity. In short, this means that we can use a much smaller vessel in comparison to traditional steam flash tanks.

Dimensional sketch for steam flash tanks or vessels.
Dimensional chart for DSU steam flash separators or tanks.

Features of Standard Steam Flash Tanks

  • We construct standard units out of carbon steel and paint them with high-temp paint.
  • 150# standard models rated for pressures up to 150 psig at 500° F.
  • 300# standard models rated for pressures up to 500 psig at 650° F.
  • We design each tank with corrosion allowance, which ensures performance for years.
  • We stamp all of our flash separators according to ASME Section VIII, Division 1.
  • Units are designed to handle a wide range of flows.
  • Tanks can be made of stainless steel and other alloys, upon request.
  • Custom designs available to suit your needs.

Please feel free to contact us for help in choosing the right model for you. If our standard models do not suit your needs, we can provide you with custom designs for your project. Keep in mind that in addition to our steam flash tanks, we are also a manufacturer of boiler drums and vessels. So, we have all your needs covered!

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Our Customers Speak

"It was good to see that you have brought your sons into the business, which will provide longevity for the Didion name. Also, I would like to compliment all your workers on the good quality workmanship." -K.D., Detroit Stoker
"The vessel has done a very good job since [it was put] in service. I greatly appreciate your hard work and good quality product." -J.W., CalEnergy
"I hope we can do a lot of business! Your response is outstanding. Seriously, thank you." -C.B., DMC-CC
"The quality of work on the vessel was very impressive. It has been some time since I have had a documentation package completed on time at the end of a project. This is one of the first times I have not had to go back to the fabricator for further information." -Bob, Q.C.
Their manufacturing staff is friendly, knowledgeable, and able to handle any of our complex questions or requests. I can confidently recommend [Didion Vessel] as a reliable supplier and an expert in their field.” -W.C., Detroit Stoker
“The quality of your manufacturing is some of he best I have seen; And I have a background in code vessel manufacturing.” -D.D., GTUIT
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About Didion's

Didon’s Mechanical is a family of companies, which includes Didion Vessel, Didion Autoclave, and Didion Separator. All are owned and operated by the Didion family in Belleuve, Ohio USA.

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