FredC
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I am installing some PE gas pipe for propane service and have some compreeion fittings to connect the poly to balck pipe and need to know if ther is any special tricks to installation. I am running about 130 feet of 3/4" poly from the tank to the house and then back underground to a fireplace and a spa heater. The fittings themselves look pretty simple. A one piece Powder coated 3/4" iron nipple with a larger diameter bell and a barbed interior that fits inside the PE that a large neoprene/ metal conical washer fits over and then a large nut. It seems just like a regular compression fiitting to me but I haven't tightened them up yet. Is there any special preparation or sealant that should be used.