field joint coating systems for 3lpp and 3lpe coated pipe
TRANSCRIPT
![Page 1: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/1.jpg)
Field joint coating systems for
3LPP and 3LPE coated pipe
![Page 2: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/2.jpg)
Flame sprayed field Joint coatings
• Polyethylene - up to 80ºC operating
temperature
• Polypropylene – up to 110ºC operating
temperature
![Page 3: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/3.jpg)
•Design Aims
• Simple field joint coating application, avoid complex,
expensive equipment, minimise carbon footprint.
• Avoid use of elevated preheat temperatures = speeds up
the operation and eliminates risk of damage to line
coating.
• Minimum steps in application procedure = easy to apply,
easy to inspect = repetitive quality.
• Use of high performance Novalac liquid coating as base
coat, guarantees high performance.
• Use of high performance, flame spray topcoats developed
to give total melt/seal to outer 3LPE /3LPP coating.
![Page 4: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/4.jpg)
Traditional FJC system used in Canada on 3LPE needs 2
uses of induction coil to install, especially in cold weather.
![Page 5: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/5.jpg)
Procedure:
• Apply Novalac base coat by brush or roller.
• Dry flock first PE/PP powder layer onto wet
Novalac base coat.
• With IR heater heat FJC surface area to
>50ºC to melt PE/PP powder and cure
Novalac.
• Flame spray PE/PP topcoat.
![Page 6: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/6.jpg)
Liquid Novalac base coat
![Page 7: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/7.jpg)
Flocking PP powder onto wet base coat
![Page 8: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/8.jpg)
Flocking PP powder onto wet base coat
![Page 9: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/9.jpg)
Flame spray Polypropylene
![Page 10: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/10.jpg)
Flame spray Polypropylene
![Page 11: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/11.jpg)
Flame Spray – up to 5 times faster than previous flame spray
systems
![Page 12: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/12.jpg)
![Page 13: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/13.jpg)
Finished PP Field Joint 2–5mm thick
![Page 14: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/14.jpg)
Finished PP Field Joint
![Page 15: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/15.jpg)
Finished PP Field Joint
![Page 16: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/16.jpg)
Can be flushed immediately for tie-in burial or lay barge work
![Page 17: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/17.jpg)
Finished joint totally compatible with line coating
![Page 18: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/18.jpg)
![Page 19: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/19.jpg)
PE system basecoat applied and flock in process
![Page 20: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/20.jpg)
Flock layer melted and ready for top coat
![Page 21: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/21.jpg)
Finished PE joint 2.5-5mm thick
![Page 22: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/22.jpg)
IR heater for preheating and curing of Novalac.
Lighter/cleaner/lower cost than induction coils
![Page 23: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/23.jpg)
Coatsol flame spray equipment crate with water and oil separators
and dehumidifier. Connect to 30 CFM compressor and propane
gas bottle to start work.
![Page 24: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/24.jpg)
Manoeuvrable and lightweight Installation Equipment
![Page 25: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/25.jpg)
Properties
PP Physical Properties
Oxidative Induction Time (at 220°C) ISO 21809-1:
(ISO 11357-6)
>40 Minutes
Cathodic Disbondment 28 days @ 90°C CAN/CSA-Z245.20 <5mm radial
Adhesion after hot water soak 28 days @ 80°C
CAN/CSA-Z245.20 Class 1
Peel Strength @ 23°C (over Novalac) ISO 2180-39: Annex D >12 N/mm
Peel Strength @ 90°C (over Novalac) ISO 21809-3: Annex D >5 N/mm
Hardness @ 25°C ASTM D-2240 Shore D >60
Flexibility @ 0°C CAN/CSA-Z245.20 No cracks @
3°C PDD
Impact resistance @ 23°C DIN 30670 >20 Joules
Tensile Elongation (at break) of topcoat @
25°C (after flame spraying)
ASTM D-638 10%
Taber Abrasion topcoat ASTM D-4060/84, H18 500Gm load 1000 cycles
55 mg weight
loss
Vicat Softening Point ISO 306 116°C
Applied thickness for system Min’ recommended 2.0 mm
![Page 26: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/26.jpg)
Key Advantages
Excellent in-service performance properties
Low pre-heat temperatures <50ºC. No risk to line coating integrity
Low carbon footprint
Lightweight, manoeuvrable, installation equipment
No electric power required
Easily installed in cold weather without induction heating
Manpower reduced compared to other systems
Complete melt with line coating at overlap
Superior performance to sleeves, FBE based alternatives
Simple inspection – unlike sleeves or FBE based systems
![Page 27: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/27.jpg)
Key Advantages
• Environmentally friendly. Low carbon footprint. VOC free base coat and inert topcoat powders
• Easy inspection ensures quality every joint; no possibility of entrapped air as with shrink sleeves or other laminated systems
• Fast and easy repair method
![Page 28: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/28.jpg)
Main applications
• Field joint coating on 3LPE + 3LPP
• Repairs to damaged 3LPE + 3LPP
• Coating of induction bends and
accessories on 3-layer coated projects
• Rehabilitation of live pipelines to replace
failing plant coating or FJC. No need to
stop flow in the line
![Page 29: Field joint coating systems for 3LPP and 3LPE coated pipe](https://reader031.vdocument.in/reader031/viewer/2022012416/6171031859f65370e34d7825/html5/thumbnails/29.jpg)
Application Limitations
No Limit on size of pipe. Bigger = more difficult
for sleeves in terms of voids and for FBE
based systems, bigger = larger coils and cost
rises greatly. There is no practical size
limitation for either of the two Coatsol flame
sprayed systems described