Steam test station

Dominic

I need help in designing a steam testing station. The system requires 2 lb @215°F steam and require 3 to 5 °F super heat at 2 lbs . Can I bring in a higher steam pressure and reduce it to 2lbs? Will this create super heat? What is the corralation between how much to reduce the steam to create 3 to 5°F super heat? The max system load will be no higher than 40,000 btuh. Is there any one out there to assist me?
Thanks

Dominic

Steam Testing Station

I need help in designing a steam testing station. The system requires 2 lb @215°F steam and require 3 to 5 °F super heat at 2 lbs . Can I bring in a higher steam pressure and reduce it to 2lbs? Will this create super heat? What is the corralation between how much to reduce the steam to create 3 to 5°F super heat? The max system load will be no higher than 40,000 btuh. Is there any one out there to assist me?
Thanks

Tony Conner

You're Looking...

...for something that's pretty freakin' precise. I don't know that you'll be able to achieve your requirements with off the shelf, normally available components. Depending upon what you're doing, you may need to go for lab grade pressure gauges and thermometers.

A PRV will theoretically give you some superheat downstream. That said, I've installed thermometers downstream of some PRVs, and the steam temp fluctuates with the load. Sometimes you get quite a bit of superheat, other times, virtually none. And 40,000 BTU/hr - that's only about 40 lbs/hr flow. That's little. Even a properly sized PRV will tend to have something of a wandering output, like a sine wave. If you need 2 PSIG, and set the PRV to deliver that, you'll likely see 1.5 to 2.5 or 1 to 3 PSIG as the output.

Try a supplier of steam components such as Spirax Sarco, Armstrong, Spence, Hoffman etc and see what they think.

hot_rod

Try these guys

looks like they have some info that may help.

http://www.steamexperts.com/default_main.htm

hot rod

To Learn More About This Contractor, Click Here to Visit Their Ad in "Find A Contractor"