Re: PIping Trivia

Hammer used to make line blinds (spectacle, if I recall correctly) with three bolts equally spread around the circumference of the flange. The advantage was that only one bolt had to be removed to swing the assembly. Obviously, this product was only suitable for specific applications.

Maybe others remember this, I can't seem to find a web reference at the moment.

Paul

> I am sorry not to understand three bolt version .please
elaborate.
> TKM

> > I have seen some mechanical device (Hammer blind Valve) which
is
> installed
> > in oil terminal in between two gate valve(Mov) near by tankage
> in/out let.
> > Hammer blind valve consists of body in beteen the spectacle
> blind( Fig 8)
> > is installed. The advantages for this type valve is that the
> open or closed
> > part can be installed by simply with the help of handle.
>
>
> is this the three-bolt version?
Received on Wed Oct 17 10:44:00 2001