CONDUCTING POLYMER SHEEL FOR CORRUGATED PIPELINE (VERSIONS) Russian patent published in 2008 - IPC F16L11/15 

FIELD: constructional engineering.

SUBSTANCE: invention refers to pipeline design. Piping assembly contains conducting corrugated pipeline, including rising and falling coils, conducting polymer shell arranged along the length of the said corrugated pipeline the aforesaid polymer shell providing conductivity from shell to conducting pipeline having maximum bulk resistivity of about 7×10⁴ Ohm·cm to provide conductivity of electric charge from external surface of polymer shell through conducting polymer shell to conducting metal corrugated pipeline. According to the second version of piping assembly design, the said thermoplastic polymer has minimum tensile strength of about 28 MPa, minimum elongation of about 300%, minimum flexural modulus of about 170 MPa and maximum bulk resistivity about 7×10⁴ Ohm·cm. Assembly is provided with fitting jointed to the said corrugated pipeline on its end.

EFFECT: production of polymer shell of improved conductivity of electric charge to conducting metal corrugated pipeline.

13 cl, 1 dwg, 1 tbl