Re: High temperature Piping in Refineries

> I agree ,do not use expansion loops directly on a pump suction due
to
> turbulence caused by ell's ,. suggest you provide straight pipe 5-
10D into
> suction just as std design practice. Maybe a better way of
describing is to
> use offset pipe lengths to relieve stresses.

[...]

Are we talking side or end-suction pumps here? 5D for large piping can mean a lot of space (speaking to the issue of plant layout economy).

Never forget NPSH and don't over-complicate things. There is a MTBF factor, we have to live with it for practical reasons.

Paul Received on Fri Oct 05 10:08:00 2001