Fabricating a 26″ 600# A182 F91 high alloy parallel slide gate valve. Here we can see the reception of both discs. Dye penetrant and dimensional test.
Parallel slide gate valves are an alternative to double disc valves, having two discs but just one wedge instead of two.

You can find more information about this kind of valve on our web page, in the special valves section. https://babcockvalves.com/special-valves/#parallel