Just to add to the mix here is raw materials. Yesterday's pumps were made from a much better grade than today's, like pipe. I've rebuilt several 70's and 80's era pumps back to data plate ratings and have no reason to believe they couldn't be of use for another 30-40 years. Cheaper and faster than replacing. I have a vimeo page with photo collages and videos. TD
NFPA has been trying to get a handle on the appropriate testing for fire pumps. With standardized testing using modern equipment and techniques, over time we should be able to develop a true life expectancy. Unfortunately we are not there yet and life expectancy is still just a cost/benefit question. A fire pump can almost always be repaired by throwing new parts at it. At some point the cost of the part outweighs the cost of a new pump. Ever had a car that just needed a radiator, a new head, or a maybe -just- a new block? Here is the final report NFPA had commissioned to review fire pump testing. http://www.nfpa.org/assets/files/research%20foundation/rffielddatacollection .pdf Jack _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
