> > What about use of Figure-8 blinds made of carbon steel?
>
The use of listed CS is permitted. Size of course shall meet the API 590
req't. Is the use of A-36 material ( structural grade but commonly available
) allowed under the rules as a material for operating blind? Well ...
> > I would think the exposed portion would rust in most
> > environments, thus destroying the gasket sealing surface.
>
Figure 8 are in-line closure. Its is exposed both to the dowstream and
upstream media (not to the atmosphere). The material selected must of course
be suitable for the service. Ditto for the gasket.
Received on Fri Oct 12 06:49:00 2001
This archive was generated by hypermail 2.1.8 : Tue Mar 04 2008 - 11:40:17 EST