Round flat cover with bolted connection
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How to distinguish between bolted flat covers numbers 9 and 10 in GB150? Why can both seal surfaces numbered 9 and 10 be selected in the software? I’m a bit confused; could someone please explain it?
Although the types of sealing surfaces differ, the K value remains the same (the effect of the bolt torque on the flat cover is taken into account in both cases), so in GB150 these two calculation methods are identical.