A: Diamond cutters are typically recommended for cutting. Grinding discs are recommended for surface preparation before bonding.

A: Yes, provided a steel or GRP spacer is inserted in between the two.

A: Repair can be done typically using off-the-shelf lamination kits. Repairs may include surface repair or may require cutting out and replacing the defective section depending on the severity of the damage.

A: Depending on the face of the flange (raised or flat), FPI recommends the use of self-energized gaskets with steel inserts or O rings. For High Pressure applications (e.g. API 15HR), spiral wound metallic gaskets are recommended.

A: When backfilling the pipe up to 0.6m from its crown, light portable plate compactors may be used with a weight not exceeding 120kg (or hand held types for small diameter/trenches). From 0.6m to 1m burial depth from pipe crown, roller compactors may be used with a maximum weight not exceeding 1000kg. Above 1m, a 5ton roller compactor may be used.

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