Why is an axial gap required between the reciprocating machine piston rod super nut and the gasket? Please advise, experts
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Why is an axial gap required between the super nut that connects the reciprocating machine’s piston rod to the piston and the gasket? I earnestly ask experts for guidance!
Do we need to leave an expansion gap? That’s what I guess
One is to leave an expansion gap, and the other is to adjust the compression ratio of the gas
My understanding: There is no need to leave an axial gap; during installation, the nut is required to make contact with the gasket. The screw is rotated an additional angle after coming into contact with the washer, with the aim of ensuring that the nut is in a completely free state.
How can I adjust the compression ratio?
It is mainly secured by a ring of small bolts on the super nut; otherwise, it cannot be tightened properly.