Minor Losses - Internal Pipe Stiffener
Minor Losses - Internal Pipe Stiffener
(OP)
Need k value for connecting HDPE to PVC with an internal pipe stiffener and mj restraint system (FM project) to calculate minor losses. We are thinking of assuming reducer and increaser for k value. Do others typically include this connection in their hydraulics and if so what do they use. (We will have about 26 sections and with a k value of 1, it adds about 6 feet of head to TDH at the operating point.) No luck with manufacturer that I called or internet search. Thanks.





RE: Minor Losses - Internal Pipe Stiffener
The Lengths can be either 10" or 7". As for the OD/IDs, I'd recommend the items below for the Pipe ID you've given. The Stiffeners are made with a lead-in taper. This would be the Min ID of the Stiffener and is only the last inch of the Stiffener. This dimension is not controlled so only an Estimate can be provided.
Pipe - 18" HDPE
ID Size - 15.741
Stiffener OD - 15.585
Stiffener Wall Thickness -.25
Stiffener Min ID (Est.) - 14.75
Pipe - 18" C905
ID Size - 17.180
Stiffener OD - 17.00
Stiffener Wall Thickness - .25
Stiffener Min ID (Est.) - 16.25
RE: Minor Losses - Internal Pipe Stiffener
RE: Minor Losses - Internal Pipe Stiffener
RE: Minor Losses - Internal Pipe Stiffener