Need help with flanges. Newbie seeking help
Thread Content
Help – I’m confused by the company’s process department. It’s a simple question: given the flange connection style shown in the diagram, I want to equip N1 with a flange – should it be of type FM or M? Help, please help!
This post was last edited by ylb913 on 2015-12-31 at 23:40. I can’t see the image; it’s not clear whether a flange should be attached to port N1, or whether a \"matching\" flange should be used for port N1’s flange. I’ll tell you everything that comes to mind: flanges with convex and concave surfaces, where M denotes a convex surface, FM denotes a concave surface, and M and FM are designed to fit together. Valve flanges are generally concave (concave on both sides), while mating flanges need to be convex when required. For the flange of the equipment body at the device port, in cases where a valve is not installed directly, and where the upper and lower inlet/outlet openings are vertical on the equipment body flange, there is a concept of a concave upper surface and a convex lower surface (at least this makes it easier to place gaskets). The body flange with an opening on the side of the equipment should be mainly concave. ——There’s no need to say anything about those that are “ontological” or “paired”.
I would like to ask what type of sealing surface the original N1 flange has. If it’s FM, then a flange with an M surface will suffice, and vice versa.
The flanges always come in pairs, so use them as they were originally paired. This cannot be changed.