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Pipe Insulation Estimate- RIP OFF

Pipe Insulation Estimate- RIP OFF

Pipe Insulation Estimate- RIP OFF

(OP)
Hi,
Does anyone out there have experience with estimating insulation for piping by linear feet.  I have some very large 30" pipe for CW that needs to be replaced.  The job is essentially 80% (2) large elbows and a valve.  The company that has a contract to do the insulation is trying to charge me for the elbows and the linear footage through the elbow, essentially double charging.  It wouldn't be a concern if the job was small pipe with long strainght runs.  They have supplied me with a diagram (which is complete BS) of how to estimate using the total developed length + each fitting.  I have't been able to find anything similiar or any rules for estimating such large piping.  I would appreciate any help.  Thanks,
Joe

RE: Pipe Insulation Estimate- RIP OFF

We generally pay twice the linear length measurement of the elbow and omit it from the total pipe length as per IS and I believe they are derivatives of BS. Valves are calculated as per their size and flange box measurement is different too.

Regards,

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