Patent ID: 8172275

Claim:
A pipe fitting for connecting between a metallic pipe and a polymeric pipe, the pipe fitting comprising: a tubular main body defining a fluid flow passage therethrough between a first opening at a first end of the main body for connection with an end section of the polymeric pipe and a second opening at a second end of the main body for connection with an end section of the metallic pipe, the main body being molded of a first polymeric material, a tubular secondary body of a second polymeric material molded into substantially coextensive surface contact with an annular interior surface of the first end of the main body surrounding the fluid flow passage for defining a portion thereof and terminating at a spacing from the second end of the main body, the second end of the main body being annularly formed with a spiral thread for mated connection with a corresponding thread about the end section of the metallic pipe, the tubular secondary body being configured to mate in surface engagement about the end section of the polymeric pipe, wherein the main body includes a hole extending through the main body into communication with the annular interior surface of the first end of the main body, the tubular secondary body including a protrusion extending into and obstructing the hole.