Re: PIping Trivia

Paul:

> It is relatively easy to see from a distance a figure 8's
position
> (open or closed). With a paddle blind, not so easy.

Ben:

> What about use of Figure-8 blinds made of carbon steel?
> I would think the exposed portion would rust in most
> environments, thus destroying the gasket sealing surface.

I'd I have thought that that possible problem would have been already taken care of by plant maintenance. Neither a paddle or figure 8 can be installed or swung without the upstream flow being stopped in the first place.

Not being someone that cuts into live lines, I'd think that a final visual check must be more comforting.

Do you have more info as to why paddle vs. 8's are used? Is it a cost issue?

Paul Received on Fri Oct 12 01:38:00 2001