Seeking help with a valve and flange connection issue
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Our newly built spherical tank is almost finished, and it’s time to install the wall-mounted gate valve. The bottom of the tank is convex; when connecting convex and concave surfaces, a concave valve must be used, and the flange below the valve remains concave as well. Are there gate valves with a concave flange on one side and a convex flange on the other? ? ?
Generally, the flanges on both sides of a valve are the same; if they are convex, then both are convex, and if they are concave, then both are concave. If one side is convex and the other side is concave, it can only be custom-made
The flanges on a standard flanged gate valve are identical on both sides; this one needs to be custom-made!
The flanges on valves are generally concave, while the flanges used for mating them are convex. Considering practical circumstances, it is more time-saving, labor-saving, and cost-effective to have one end of the valve customized to be convex, rather than replacing the entire flange
The valve features a concave flange, which is the standard configuration; it would not be cost-effective to design one flange as convex and the other as concave – flanges that are convex on both ends are sufficient