Issues regarding the machining of seat surfaces for soft-sealed ball valves
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I have a question for the experts here: how is the seat of a soft-sealed ball valve manufactured? For example, in the case of PTFE, is it sufficient to simply manufacture it according to the drawings? Why do the dimensions shown in the drawings differ from the shape of the part after it’s assembled? Does the sealing surface need to be shaped into an arc, just like the sphere itself? .
The design is different from what it looks like after actual assembly; was some margin left, and by making it into an inclined surface, sealing can be achieved?
It’s basically the same; it can also be bonded with glue
The actual size should be 1 MM smaller, to be pressed in with a tight fit