Q. "Can I attach pipe to both sides of a bulkhead fitting?"
A. One side (the side with the nut) of our deluxe bulkhead fittings is female pipe thread, and the other (flat or flanged) side (with the exception of the smaller 1/4" and 3/8" bulkhead fittings) is a glue style socket for standard plastic pipe (sch40 PVC, ABS, etc.). This means that either a threaded male adapter or a nipple will be required to attach to the threaded side. The smaller 1/4" and 3/8" deluxe bulkhead fittings have a smooth walled end that is not designed to accept gluable pipe. Our economy bulkhead fittings are female pipe thread on both sides.
Q. "Why don't the smaller 1/4" and 3/8" bulkheads have the glueable sized sockets on the other end for standard plastic pipe?"
A. We believe it's because 1/4" and 3/8" Schedule 40 plastic pipe are very rare, if they still exist at all. One side is IPS threaded and the other side is smooth walled but we are not aware of any size piping being available that can be glued into the smooth walled side of these smaller fittings. The manufacturers have elected to include the pipe-sized, glue-style socket on the more common larger bulkheads only.
Q. "What are the gaskets made of?"
A. For sizes 1/4" to 2" deluxe are EPDM and 3" to 6" are neoprene.
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