Just wondering if it is common for scotch marine fire tube boilers to have tube leaks within the first one-two years of operation. Is there a typical timeframe where you would expect the first tube leaks to occur? Would it be more of an operational fault (short cycling or thermal shocks?) or...
Are there typical integrity tests for underground electrical sub-feeders (insulation, supports, etc.?) Or should you just plan to survey/inspect each vault and repair whatever is visible?
Aside from specifying a water sealant, what are other ways of waterproofing pipes that penetrate an underground sump pit? Would flanges on either side of the pipes be the answer? Also, with an underground concrete vault, should additional drainage pipes or pressurized slab be specified to...
Does anyone have any success rebuilding the insides of an older boiler? New tubes and tubesheets would be installed and followed up with a hydrostatic test, but I'm skeptical that that 30 year old boiler with new controls on it will continue to break down.
Where in the ICC or NFPA does it talk about ventilating mechanical shafts? Does this only apply to high rise buildings because of stack effect? I know about specific ventilation requirements for elevator shafts, but not mechanical shafts.
For direct injection humidifiers, is there usually a condensate return line back to the clean steam generator? I always thought the condensate was minimal enough that it could be routed to a floor drain and if any hot condensate (>140F) concerns came up, you could put a cooling leg (4 ft of...
