Hi! Everyone,

I have a question for above subject. Now we often use spring at first support of pump suction nozzle which has very small nozzle allowable load like ANSI pump (not API) to satisfy nozzle load. In this case, the reasons to use spring are to be reduced Y force occurred by using eccentric reducer, to be reduced X or Z moment occurred from other factors, and to be reduced reaction force occurred by friction. But spring travel will be very small like 1 or 0.5mm only. According to CAESARII, there is shown that the Rigid Support Displacement option is able to be used to save cost if spring hanger travels are very small (A typical value to be used is 0.1 in). Therefore I intend to use Y support instead of Spring caused by above reasons. And also first support of pump must be adjustable type to adjust alignment of pump shaft. So now I'm asking what means of use spring is.
And I would like ask to use Y support instead of Spring carefully.

May I use Rigid Y support instead of Spring......?

Anybody know that, please let me know......

Best regards,