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question about reducing tee?

question about reducing tee?

question about reducing tee?

(OP)
Where can I find Resistance coefficient(K) for 8x8x6 reducing tee? Thanks.

RE: question about reducing tee?

I don't believe you will *easily* find a measured K for a reducing tee.  I would model it as Ktee +  Kreducer and let it go at that.

Good luck,
Latexman

RE: question about reducing tee?

Crane Flow of Fluids Technical Paper #410 -
see note for example 4-14:
in the absence of test data for increasing elbows the resistance is conservatively estimated to be equal to the summation of the resistance due to a straight size elbow and a suden enlargement.

i.e. Latexman posting is confirmed by the most well known handbook on the subject.

to determine which coefficient to apply you need to know if the flow will be IN thru the 6" (sudden expansion) or OUT thru the 6" (sudden reduction)

you may find some formulae in internet - or acquire the Crane Technical Paper #410.


saludos.
a.

RE: question about reducing tee?

Chapter 13 "Dividing and Combining Flow" of the book "Internal Flow Systems" by D.S. Miller of BHRA Fluid Engineering Services has many diagrams/figures giving K values for equal and reducing tees.

regards

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