Patent ID: 8075020

Claim:
In a selective catalytic reduction system including a heatable piping and a pipe fitting, comprising: a body made of a polymeric base material and defining a hydraulic connection to make a urea solution flow from/to said piping; wherein said polymeric base material comprises electrical fillers added before forming so as to make the body thermally conductive, and comprises electrical connection means carried by said body including: a first terminal electrically connected to an electrical power supply circuit, an electrical heating element embedded in said body and electrically connected to said first terminal, and a second terminal electrically connected to said first terminal, and electrically connectable to a further electrical heating element of said piping; and wherein said polymeric base material is polyamide PA12, and said electrical heating element is comoulded in the pipe fitting; and said electrical heating element comprises a core defining an electrical resistor, and an electrical insulation sheath between said core and said polymeric base material.