PSV Sizing hydraulic calcs

[pb2102sm]

Hi all,

1-Can someone please tell what would be the schedule for a 6" fibercast pipe? the specification of the pipe is: Fibercast RB-2530

2- What would be the loss coefficient (K value) of an expansion joint?

Please, if possible reply with references.

Thank you.
pb2102sm

 

[LittleInch]

Where have you looked?

What do you think?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[pb2102sm]

For the Fibercast pipe schedule, I've looked on the internet. Nothing specific shows up.

For the Expansion Joint pressure loss coefficient, I believe it can be found in the manufacturer's cutsheet, but since I'm designing a new system I'd like to know at least the typical values.

 

[LittleInch]

How about this? See attached.

See these and search on this site for more.

https://www.eng-tips.com/viewthread.cfm?qid=101803

https://www.eng-tips.com/viewthread.cfm?qid=474949

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[pb2102sm]

Hi
LittleInch,

Thanks for the information, in one of the links I found this Handbook of Hydraulic Resistance, it has some interesting data

 

[RVAmeche]

Since the design of expansion joints varies wildly (how big? how many convolutions? is there a flow liner?) you should ask the supplier for a value. I wouldn't try to interpolate or guestimate a value, outside of maybe assuming something like 1 psi drop and in your calcs and stating that plainly.