ECN Forum Forums Code Related Discussion NEC & other Code issues PVC conduit body schedule?

You need to contact the manufacturer. Most claim that the reinforcing in the LBs creates a strength comparable to Sch. 80 conduit.
In my experience I have seen Sch. 40 conduit fail but have yet to see an LB broken.
Be carfull about using a metal LB if it is connected to PVC at both ends and has service conductors, because you now have to bond the LB.
Alan--Inspector.