Is used: Oil and gas industry

POLYMER ROCKSHIELD TO PROTECT THE SURFACE INSULATION OF PIPELINES WITH A DIAMETER UP TO 1420 MM INCLUSIVELY

Polymer rockshield (SLP) is designed to protect the insulated surface of the pipelines with a diameter up to 1420 mm inclusively, when the pipelines are laid in rocky and permafrost soils with sharp fractions and in mineral soils with inclusions of land waste, pebbles and unconnected masses of rocks.

Two types of the rockshield are manufactured: Type 'O' – standard and Type 'U' – reinforced. The rockshield is the structure manufactured by means of one-way lamination of non-woven synthetic material with polyethylene or other replacing polymer material allowing reliable fixation of the polymer layers (both non-woven and solid) followed by perforation.

The SLP design meets the following principle requirements:

  1. Ecological cleanness of the environment;
  2. Simplified pipeline lining process;
  3. Simplified transportation and storage processes;
  4. No limitation for cathode control.

The SLP rockshield has been protected by the RF patent and granted with the ecological certificate.

SLP TECHNICAL CHARACTERISTICS

Rockshield type External diameter Dn
of the protected pipeline, mm
Length L, mm,
minimum
Width B (along the pipeline), mm,
minimum
Thickness, mm,
minimum
Number of shields
in the kit
SLP-1420 1420 4700 2400 5 1
SLP-1220 1220 4060 2400 5 1
SLP-1020 1020 3440 2400 5 1
SLP-820 820 2820 2400 5 1
SLP-720 720 2500 2400 5 1
SLP-630 630 2220 2400 5 1
SLP-530 530 1900 2400 5 1
SLP-426 426 1580 2400 5 1
SLP-337 337 1300 2400 5 1
SLP-325 325 1260 2400 5 1
SLP-273 273 1090 2400 5 1
SLP-219 219 920 2400 5 1
2011 CJSC Gazprom StroyTEK Salavat

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