Are all bulkhead fittings created equal.

[sphelps]

Originally Posted by StirCrazy

I would use schedual 10 if there was such a thing sched 40 is even way overkill for what we do. how often do we run 150 PSI on our systems?

almost any bulkhead that fails is from inproper instalation, or a defect in the bulkhead its self, not because it is a cheap one or it is schedual 40.

Steve

Yeah nothing to due with the pressure rating, I like to use the sch20 pipe as it's got a larger inside diameter but it's hard to find. But when it comes to bulkheads you need the larger, coarser thread to achieve higher torque and ultimately a better seal. The thiner bulkheads crack easier and usually don't even have reverse threads. They also have thinner gaskets and a lower tolerance to movement which comes from various forms of maintenance.