PARTⅠ

General Use

Generally used for repair of pipelines for oil, water and gas.

PARTⅡ

Working Principle

By wrapping the damaged part with our composite materials, the repair layer is able to jointly share the circumferential stress with original pipe wall, thus disperse the concentrated stress of the damaged parts, so as to achieve the purpose of repairing.

PARTⅢ

Working Flow

Defects Ground Positioning → Defects evaluation → Repairing Resolution Selection→ Pipeline Repairing → Pipeline Anti-Corrosion Reinforcing

PARTⅣ

Components

1. High Strength Glass Fiber Cloth (S Grade)

2. Adhesive (Resin A + Resin B)

3. Packing (Packing A + Packing B)

PARTⅤ

Technical Index

1. High Strength Glass Fiber Cloth

(1) Application

①Repair of Pipeline Corrosion ≦80%

② Repair of Pipeline Bore. Bore ≦25mm Working Pressure ≦5MPa

③ Inhibit the Developing Cracks or Fractures

(2)PressureRange

① Pipeline Corrosion Design pressure ≦25MPa

② Pipeline Leakage Working pressure ≦5MPa

(3) Temperature Range - 29℃～+54℃ (Standard)；-29℃～+82℃ (High-Temperature)

(4) Material - Unidirectional Glass Fiber + Resin

(5) Glass Fiber Cloth Size - 300mm×50m (Standard); 500mm×50m

(6) Thickness of Glass Fiber Cloth - 1.6mm (Standard)

(7) Wrapping Layers - Determined by damaged degree and working pressure

(8) Proportion of the glass fiber and the resin - Glass Fiber 60%-70% (by weight)

(9) Mechanical Properties

① Tensile Strength: ≧600MPa

② Yield Strength: ≦1.5%

③ Elastic Modulus: ≧70×103MPa

④ Thermal Expansion Coefficient: 6×10-6 inch/inch/℉

2. Adhesive

① Shearing Strength: ＞45MPa

② Storage Condition: Stored in cool dry place (≦22℃)

③ Storage Time: 12 Months

3. Packing

① Compressing Strength: ＞55MPa

② Storage Condition: Stored in cool dry place (≦22℃)

③ Storage Time: 12 Months

PARTⅥ

Application

1. Repair of Pipeline External Corrosion. Corrosion ≦80% Working Pressure ≦25MPa

2. Temporary Repair of Pipeline Internal Corrosion. Corrosion ≦80%

3. Repair of Mechanical Damage. Damage ≦60% No Crack

4. Repair of Pipeline Bore. Bore ≦25mm Working Pressure ≦5MPa

5. Inhibit the Developing Cracks or Fractures

6. Repair of Circumferential Weld and Spiral Weld. Axial Misalignment ＜0.3t, Sand Hole＜0.2t, Length＜1/12 Pipeline Circumference

7. Repair of Pipeline Damage. Radius of Curvature≧3D

8. Repair of Flash Burn

9. Repair of Bubble

10.ShallowSeaor Ocean Platform Pipeline Repair

11. Pipeline Support or Suspension Parts Reinforcement

12. Pipeline Pressure Promotion

13. Temporary Repair of Pipeline Accidents

PARTⅧ

Advantages

1. Needn't stop delivering or empty the pipelines.

2. Needn't large mechanical equipments to excavate large working pit.

3. Needn't weld, the workers don't need to work with pressure.

4. No air-pollution.

5. Repair leave up to 50 years.