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tigerloop confusion

chuck172 Member Posts: 90
I'm installing a roth tank outdoors. The bottom of the tank will be 6' above the oil burner. Will there be any problem with this overhead piping? Any special precautions?


  • STEVEusaPA
    STEVEusaPA Member Posts: 6,506
    Are you going single pipe?
    Just the usual-all flare fittings, OSV, power purge for air. Judging from the post title you're putting in a Tiger Loop?
    Isn't this a continuation of your last post?
  • chuck172
    chuck172 Member Posts: 90
    This is related to my last post, but addresses a different problem.
    In the following link from the tigerloop installation directions :http://www.spxflow.com/en/assets/pdf/TigerloopUSA.pdf figure nine shows the required trap in the installation.
    Tigerloop also states: "If the tank is located above the ULTRA
    , an oil safety valve (ie.
    Westwood Products No. S225) is strongly recommended. If the inlet pressure
    will exceed 8 PSI, an oil safety valve
    must be installed"
    With the tank bottom being 6' above burner, how much pressure will the inlet pressure be?
  • captainco
    captainco Member Posts: 792
    A gravity tank is only going to create ounces of pressure not pounds. OSV are for pressures above 3PSI. I see no reason for it. Don't really see a reason for a Tiger Loop on a gravity system. If there is air there is a leak. Leaks need to be fixed or you end up with a sooted up furnace and call backs.
  • captainco
    captainco Member Posts: 792
    Okay the OSV is still needed in case there is a break between the OSV and the pump, but it won't do much good if the leak is between the OSV and the tank which is more likely I would think.