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Place of Origin: China (Mainland)
Brand Name: CYG
Model Number: FRDK
Burst Strength: >2000N
Dielectric Strength: >25 MV/m
Tensile Strength: >17 MPa
Elongation at Break: >400%

Specifications

 

FRDK is a high performance fiberglass reinforced sleeve specifically designed for girth weld corrosion protection on pipes used in directional drilling applications.

Construction: three-layer system

First layer: liquid epoxy, solvent-free, two-component

Second layer: high shear strength hot-melt adhesive

Third layer: radiation cross-linked, high density polyethylene, fiber reinforced composite structure.

 Additional component: Wear Cone as extra protection against pull-through forces, of the same construction as the main sleeve.

The FRDK system provides effective protection against abrasion and wear forces that occur during the pull-through operation. The system is fully compatible with cathodic protection systems, resists cathodic disbondment and is designed for a wide range of operating temperatures.

Features:

Superior cathodic disbondment and hot water immersion resistance.

Highly resistance to shear and peel forces induced by soil and thermal movement.

Easy to apply with minimal training

Superior abrasion resistance

Excellent adhesion performance

Preheat requirement for product installation 

   Application

---Oil & gas pipelines for directional drilling

---Water pipelines for directional drilling

---Compatible line coating: PE, FBE, Coal Tar

Properties

Requirements

Test Method

Backing

Burst Strength (N)

(Fibre re-inforced sleeve)

≥2000

EN 12068

Heat Aging (150oC,168h)

(Fibre re-inforced sleeve)

≥1700

EN 12068

Dielectric Strength (MV/m)

≥25

ASTM D 149

Environmental Stress Cracking

(F50) (h) (10%Co630, 50±2oC)

≥1000

ASTM D 1693

Tensile Strength (MPa)

≥17

ASTM D 638

Elongation at Break (%)

≥400

ASTM D 638

Chemical Resistance

(168h) (N)

10%HCl

≥85

ASTM D 638

10%NaCl

≥85

ASTM D 638

10%NaOH

≥85

ASTM D 638

Volume Resistivity (Ω·m)

≥1×1013

ASTM D 257

Adhesive

Ring & Ball Softening Point (oC)

≥90

ASTM E 28

Lap Shear (MPa) (23±3oC)

≥1.0

EN 12068

Sleeve

Holiday Test (kV)

15

EN 12068

Peel Strength

(23±2oC)

(N/cm)

PE/PE

PE/Primer Steel

PE/FBE

≥70

≥70

≥70

ASTM D 1000

Peel Strength

(50±2oC)

(N/cm)

PE/PE

PE/Primer Steel

PE/FBE

≥15

≥15

≥15

ASTM D 1000

Indentation Resistance (mm)

≥0.6

EN 12068

Impact Strength (23±3) (J)

≥15

EN 12068

Cathodic Disbonding Resistance (mm) (23±3oC)

≤20

EN 12068

Hot Water Immersion

(120d, 65oC)

No delaminating, no blisters or water ingress

ASTM D 870

 

 

 

 

Product Specifications

specification

Circumferential length of sleeve

Closure patch width

Wear cone width

FRDK159*500-1.5/1.0

680

100

150

FRDK219*500-1.5/10

900

120

150

FRDK273*500-1.5/10

1070

120

150

FRDK325*500-1.5/10

1260

120

150

FRDK355*500-1.5/10

1360

120

150

FRDK426*500-1.5/10

1600

150

200

FRDK508*500-1.5/10

1900

150

200

FRDK529*500-1.5/10

1940

150

200

FRDK610*500-1.5/10

2220

200

200

FRDK711*500-1.5/10

2560

200

200

FRDK813*500-1.5/10

2880

200

250

FRDK1219*500-1.5/10

4180

200

250

The above data is normal size .We can produce special size according to the customer's demand.