GLASS-BASALT-PLASTIC PIPE Russian patent published in 2008 - IPC F16L9/12 B29D23/00 

FIELD: construction; water supply.

SUBSTANCE: invention concerns the pipes intended mainly for construction of heat and water supply lines. The pipe contains base layer from a composite material on a basis of epoxy connecting and glass-basalt roving or the fabrics, located on a base layer of a pipe a thermal protection from elastic heat-insulating material, the exterior envelopment located on a thermal protection and made from a composite material on a basis of epoxy connecting and glass-basalt roving or fabrics, thus the ends of a base layer of a pipe are executed straight and smooth or have a threaded socket pipe and a nipple, or a socket pipe and a socket pipe, or a nipple and a nipple. Epoxy connecting of a base layer of a pipe contains a hardener on the basis of an aromatic amine, the exterior envelopment of a pipe is preliminary strained towards a tensioning, and epoxy connecting of exterior envelopments is selected from a solidification condition at temperature of 15-100°C and an elongation of hardened epoxy connecting, roving or fabrics of an exterior envelopment of 5-15%. The thermal protection is executed from at least one radially pressed elastic element. Such performance provides increase of durability and decrease in labour input of its manufacturing.

EFFECT: increase of durability and decrease in labour input at manufacturing of thermal protection for pipes.

5 cl, 7 dwg