Method and apparatus for end-to-end welding of lined pipe

A weld shield device arranged and designed to facilitate the end-to-end connection of two pipe segments having fiberglass liners during welding operations, wherein said weld shield device is arranged and designed to at least partially occupy a cutout portion of said fiberglass liners comprising:

• a sleeve body arranged and designed to couple with said fiberglass liners, wherein said sleeve body in coupling with said fiberglass liners of said two pipe segments has a length such that a welding gap is created between said two pipe segments, and
• insulation material is coupled to said sleeve body, wherein said insulation material reduces heat from being transferred from said welding operations to said fiberglass liners.

A weld shield device arranged and designed to facilitate end-to-end connection of two pipe segments having fiberglass liners during welding operations, wherein said weld shield device is arranged and designed to at least partially occupy a cutout portion of said fiberglass liners comprising:

• a sleeve body having a complimentary profile to fiberglass cutout portions of said two pipe segments, wherein said sleeve body is arranged and designed to couple with said fiberglass liners at a mating surface, wherein said sleeve body includes short necks which fit around the ends of said liners, and wherein said sleeve body in coupling with said fiberglass liners of said two pipe segments has a length such that a welding gap is created between said two pipe segments, and
• an insulation material coupled to said sleeve body, wherein said insulation material covers the entire length of an outside end of the weld shield device, and wherein said insulation material reduces heat from being transferred from said welding operations to said fiberglass liners.

A weld shield device (10,10′) arranged and designed to facilitate end-to-end welding of two pipe segments (130A, 130B) each having a liner (120A, 120B) placed therein, wherein said liners each have a cut out portion length (125, 135) as measured from an end of said liner to an end of a respective pipe segment, the device comprising,

• a sleeve body (20, 20′) having an outer surface and having an axial length which is greater than twice said cut out portion length, wherein said body is arranged and designed to contact ends of said liners of said two pipe segments such that a welding gap (23) is created between said ends of said two pipe segments, and
• insulated material (30) is provided around a said outer surface of said sleeve body.