Regarding the gate valve bonnet bolts

2018-07-16View Original

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I would like to ask fellow sailors: how are the specific specifications for valve cover bolts determined? When maintaining valves, it is necessary to replace the valve cover bolts; these are all fresh water valves. Is it all calculated? Is there still some kind of size standard or something? Thank you to all the sea friends.

Reply #22018-07-16

As specified in the design calculations, the bolt specifications for the middle flange of standard valves are more or less the same across different manufacturers

Reply #32018-07-19

You can refer to JB/T 1700-2008 \"Valve Components – Nuts, Bolts, and Plugs\".

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Regarding the gate valve bonnet bolts

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