API 610 4th Edition

[itwasokwhenileftit]

Folks, I am at a cross road with stress boys over allowable pump nozzle loadings. Pumps in question are a couple of Sigmund Pulsometer centrifugal horizontal split casing type, early 50's so 4th edition of 610. Been in service for the last 60 years with pretty good reliability. The suction & discharge piping is being replaced as part of a plant upgrade but pretty much in the same configuration. No surprise though that Ceasar & current revision of 610 get me nowhere near allowable nozzle loadings with the current piping configuration & no room whatsoever to install loops without reconfiguring the complete pump slab. So Question I have before I look at annex F is where can I get hold of a 4th edition copy of API610 ?

Thanks.

 

[IFRs]

Contact API for 610 4th edition.
Can you put expansion joints or flex piping at the pump flanges? They will absorb the deflections of the piping...