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What is the difference between heat shrink sleeves (HSS) and other joint coatings? (1/2)

Contents

•Different Standards General
•Standards for Main Line coating
•Standards for Field Joint coating
•Test methods & requirements (HSS)
•Berry Plastics Approval’s

What is the difference between heat shrink sleeves HSS and other joint coatings?

•DIN 30670  Polyethylene Coatings max 50°C – No Cathodic Protection
•DIN 30671  Epoxies & Polyurethane (not valid any more)
•DIN30672  Cold Tapes & HSS - No Cathodic Protection
•EN 10289  Epoxies
•EN 10290  Polyurethane
•EN 10288  2LPE
•EN 10285  3LPE
•ISO 21809-1  3 layers Polyethylene & Polypropylene
•ISO 21809-2     Epoxies (FBE)
•ISO 21809-4  2 layers Polyethylene

ISO 21809-5  External Concrete Coatings

Standards for Field Joint Coating

1979 – 1999:

•National standards (NF, NACE, BS, …)
•Company Specifications (Snam, Shell, Aramco,…)
•Project Specifications (old Raychem, salt & peper, …)
•DIN 30672
 
- Cold Tape & Heat Shrinkable Sleeves
- Versions 1979, 1991 & 2000
- Up to 50°C
- Without Cathodic Protection (CP)
 

1998 - 2008:

•ASTM – NACE & AWWA (North America)
•EN 12068 (Rest of the world)

  - Cold Tape & Heat Shrinkable Sleeves

  - No Temperature limitation

  - Cathodic Disbondment test

  - UV test

  - Mechanical resistance (Class A, B & C)

  - Class C: 3 peel values in Function of CD test

2009 + 

•ISO 21809-3 (worldwide – Approved Nov 08)

  - All technologies:

  - Bituminous, Petrolatum, Wax & Polymeric Tapes

  - Heat Shrinkable Coatings (Tapes & Sleeves - 2LPE-3LPE-3LPP)

  - Fusion Bond Epoxy (FBE)

  - Liquid Coatings (Epoxy & Polyurethane)

  - Others (Polyolefin, Thermal Spray Aluminium, Hot Wax, Elastomeric)

  - Requirements:

  - 1 Class mechanical resistance

  - Test methods = EN & ASTM

Contents

•Different Standards General
•Standards for Main Line coating
•Standards for Field Joint coating
•Test methods & requirements (HSS)
•Berry Plastics Approval’s

Test Methods & Requirements

1. Impact Resistance:

EN12068

Class A: 4J

Class B: 8J

Class C: 15J

Test 5kV/mm

ISO21809-3

3LPE: 5J/mm

3LPP: 8J/mm

Test 5kV+5kV/mm

What is the difference between heat shrink sleeves HSS and other joint coatings?

 

2. Indentation Resistance: (@23°C)

EN12068 (72 hours)

Class A: 0,1N/mm²

Class B: 1,0N/mm²

Class C: 10N/mm²

What is the difference between heat shrink sleeves HSS and other joint coatings?

Test 5kV/mm or Thick: 0,6mm

ISO21809-3 (3LPE&3LPP) (24 hours)

50°C: 1,0N/mm²

120°C: 10N/mm²

Test 5kV+5kV/mm & Thick: 0,6mm

3. Cathodic Disbondment Resistance

What is the difference between heat shrink sleeves HSS and other joint coatings?

What is the difference between heat shrink sleeves HSS and other joint coatings?   What is the difference between heat shrink sleeves HSS and other joint coatings?  

EN12068 (28 days @ 23°C)

Class A: 20mm

Class B: 20mm

Class C: 10-15-20mm

@Tmax: no requirement

ISO21809-3 (3LPE&3LPP) (28 days)

@23°C: 8mm

@Tmax (95°C): 15mm

4. Peel Strength to pipe surface and main coating

What is the difference between heat shrink sleeves HSS and other joint coatings?

4. Peel Strength to pipe surface and main coating (@23°C & 10mm/min)

EN12068  Pipe      Coating

Class A:   0,4N/mm  0,2N/mm

Class B:   0,4N/mm   0,2N/mm

Class C:   0,5N/mm   0,4N/mm  (if CD: 10mm)

Class C:    0,75N/mm 0,4N/mm  (if CD: 15mm)

Class C:   1,0N/mm   0,4N/mm  (if CD: 20mm)

ISO21809-3 (3LPE&3LPP)

   Pipe      Coating

3LPE:  2,5N/mm   2,5N/mm

3LPP:  4,0N/mm   4,0N/mm

What is the difference between heat shrink sleeves HSS and other joint coatings?

 

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