Butterfly valve body top flange thickness question 1

[bao2ye]

Hi, all, another question about butterfly valve.

How to determine the top works thickness and how to determine butterfly valve body neck length?

Thanks in advance

Bao2

 

[gerhardl]

This is not always given as a standard. If not:

Thickness: Enough to support a normal actuator and all probable loads (torques) and not less than standard thickness for a pipeflange at the given pressure norm (??? others?).

Length: Enough to give room for spindle length sealing and bearing at the given pressure class/fluid/operation conditions/ mechanical forces (inclusive cooling distanse if high temperature valve).

 

[bao2ye]

Thanks you so much gerhardl