Laywrap
Laywrap overcomes the difficulties associated with carrying out field joint operations on dissimilar coatings such as EPDM/PE or PE/FBE, which are typical problems associated with connecting factory coated risers to filed coated flow lines via a "dogleg" assembly. Laywrap provides an ultrafast alternative field joint coating solution at the lay barge tie-in coating station or may be applied subsea by divers, when used as a coating repair method. Installation topside, underwater or in a pipeline trench is carried out with air or hydraulically operated tools, driving a reuseable closure caliper. Closure around the joint is via a thermally formed flange, designed to follow filed joint contours. Typical installation times for pipe diameters of 8" (200mm) to 24" (610mm) are 6 minutes per joint.
Laywrap is derived from Retrowrap's proven design. It utilizes a 4.5 mm or 6.5 mm multi-layer, nylon reinforced fabric impregnated with a high temperature 250°F (120° C) resistant, environmentally safe, corrosion inhibiting gel.
Features:
- Cold applied - No hot work permit required
- Does not requrie substrate shotblast preparations
- Easy installation wwith factory installed corrosion resistant fasteners
- Hoope tension induced into the fabric during installtion locks the system in place
- Corrosion inhibiting gel's hydrphobic characteristics prevent water entrapment during underwater applications
- Easy removal and replacement to facilitate inspection
