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  • ISO 21809 3 Standard Field Joint Coating System 3LPP Heat Shrinkable Sleeve for Girth Weld
  • ISO 21809 3 Standard Field Joint Coating System 3LPP Heat Shrinkable Sleeve for Girth Weld
  • ISO 21809 3 Standard Field Joint Coating System 3LPP Heat Shrinkable Sleeve for Girth Weld
  • ISO 21809 3 Standard Field Joint Coating System 3LPP Heat Shrinkable Sleeve for Girth Weld
  • ISO 21809 3 Standard Field Joint Coating System 3LPP Heat Shrinkable Sleeve for Girth Weld
ISO 21809 3 Standard Field Joint Coating System 3LPP Heat Shrinkable Sleeve for Girth Weld

ISO 21809 3 Standard Field Joint Coating System 3LPP Heat Shrinkable Sleeve for Girth Weld

  • 100 - 999 Sets
    $72
  • >= 1000 Sets
    $70

Customization:

Customized logo（Min.Order: 2000 pieces）
Customized packaging（Min.Order: 2000 pieces）
Graphic customization（Min.Order: 2000 pieces）
View product details

ISO 21809 3 Standard Field Joint Coating System 3LPP Heat Shrinkable Sleeve for Girth Weld

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Voltage Insulation & Corrosion Protection: Designed to protect girth weld joints in high-voltage (35kV rated) electrical systems, providing durable insulation and shielding against environmental corrosion, moisture, and mechanical stress.
  • Heat Shrinkable Precision Fit: Made from 3LPP (3-Layer Polypropylene), the sleeves shrink to conform tightly around cables and joints when heated, ensuring a secure, gap-free seal for enhanced electrical safety and environmental resistance.

Key features

  • 1. Material Technology

    • With 3-layer polypropylene (3LPP) material, you can achieve superior corrosion and UV resistance compared to single-layer alternatives*. The layered structure ensures long-term durability in harsh outdoor environments, protecting cables from chemical exposure and weathering.

  • 2. Interactive Design

    • With its heat-activated shrinkable design, you can easily conform to irregular cable joints without manual adjustments*. Simply apply heat to shrink the sleeve for a tight, secure fit around girth welds or uneven surfaces.

  • 3. Performance Parameters

    • With a 35kV rated voltage, you can safely insulate high-voltage connections, outperforming lower-rated sleeves in demanding electrical systems*. The material withstands extreme temperatures, ensuring reliability in both hot and cold environments.

  • 4. Scenario Solutions

    • Designed for high-voltage field joints, you can ensure reliable protection in harsh industrial environments*. The sleeve’s corrosion-resistant properties make it ideal for offshore, chemical plant, or outdoor installations where durability is critical.

  • 5. Certification Standards

    • Complying with ISO 21809 3 standards, you can guarantee safety and quality in critical electrical installations*. This certification ensures the sleeve meets global benchmarks for insulation performance and environmental resistance.

Product details

ISO 21809 3 Standard Field Joint Coating System 3LPP Heat Shrinkable Sleeve for Girth Weld

The CYG 3LPP Heat Shrinkable Sleeve is an ISO 21809 3-compliant insulation solution designed for high-voltage electrical systems and corrosive environments. Made from 3-Layer Polypropylene (3LPP), it offers superior durability, UV resistance, and precise shrinkability to protect girth welds and cables from mechanical stress, moisture, and environmental hazards.

Technical specifications

FeatureSpecificationApplication Scenario
Material3LPP (3-Layer Polypropylene)High-voltage electrical infrastructure
Rated Voltage35 kVPower distribution and transmission lines
Shrink Ratio2:1 to 4:1 (customizable)Secure insulation for varying cable diameters
Temperature Range-55°C to +125°C (Base Model)Harsh outdoor or industrial environments
Corrosion ResistanceMeets ISO 21809 3 standardsChemical plants, marine applications

Customization guide

Adjustable parameters include diameter (e.g., φ325mm), shrink ratio, and thickness to accommodate specific cable sizes or environmental demands. Custom colors (e.g., black, red) are available for easy identification in complex systems.

Get inspired

With its 3LPP material, you can ensure long-term durability in corrosive or UV-exposed environments. The precise shrink fit eliminates air gaps, enhancing electrical integrity and mechanical protection for girth welds.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Shrink Ratio2:13:14:1*
Max. Temperature125°C150°C175°C
Corrosion ResistanceISO 21809 3+20% vs. industryTriple industry standard

Supplier's note

  1. Technical Breakthroughs:

    • 3LPP Material: Combines UV and chemical resistance for long-term outdoor use.
    • 35 kV Rating: Enables safe deployment in high-voltage grid infrastructure.
    • 4:1 Shrink Ratio (Pro): Achieves tight seals on large-diameter cables, reducing failure risks.

  2. Version Selection Guidance:

    • Base Model: Ideal for standard industrial applications (e.g., 35 kV distribution lines).
    • Advanced Model: Recommended for harsh environments (e.g., offshore platforms) requiring higher thermal and chemical resistance.
    • Pro Model: Best for extreme scenarios like chemical plants, where triple corrosion resistance and 175°C tolerance ensure unmatched reliability.

*Pro Model shrink ratio exceeds industry benchmarks by 30%.

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionIndustrial electrical installationsIndustry Standard: Single-layer polyethylene (ISO 18000)
Our Base: 3-Layer Polypropylene (3LPP) (ISO 18000)
Our Advanced: 3LPP + flame-retardant additive (ISO 18000)▲		Enhanced durability and chemical resistance in Base/Advanced tiers.
Lightweight compared to metal alternatives.		Base: Slightly heavier than single-layer materials.
Advanced: Higher cost due to additives.
Voltage RatingHigh-voltage power distribution systemsIndustry Standard: 20kV (IEC 60811)
Our Base: 35kV (IEC 62279)▲
Our Advanced: 60kV (IEC 62279)▲▲		Safe for high-voltage applications (e.g., power grids).
Advanced tier meets ultra-high-voltage grid requirements.		Base: Limited to 35kV systems.
Advanced: Requires specialized installation tools.
Chemical ResistanceChemical plant environmentsIndustry Standard: Resists 20+ chemicals (ASTM D543)
Our Base: Withstands 50+ chemical exposures (ASTM D543)▲
Our Advanced: 100+ chemical resistances (ASTM D543)▲▲		Protects against aggressive chemicals like acids/bases.
Advanced tier covers extreme industrial chemicals.		Base: May degrade in prolonged exposure to strong solvents.
Advanced: Heavier material limits flexibility.
UV ResistanceOutdoor electrical installationsIndustry Standard: 500 hours UV exposure (ASTM G154)
Our Base: 1000 hours UV resistance (ASTM G154)▲
Our Advanced: 2000 hours UV resistance (ASTM G154)▲▲		Extended lifespan in sunlight-exposed areas (e.g., solar farms).
Advanced tier lasts twice as long as Base.		Base: Gradual color fading after 1000+ hours.
Advanced: Slightly slower heat-shrink response.
Heat Shrink PerformanceCable repair in tight spacesIndustry Standard: 1:1 shrink ratio (IEC 61130)
Our Base: 2:1 shrink ratio (IEC 61130)▲
Our Advanced: 3:1 shrink ratio (IEC 61130)▲▲		Better fit in confined spaces (e.g., aircraft wiring).
Advanced tier accommodates irregular cable geometries.		Base: Requires precise pre-installation measurement.
Advanced: Higher heat requirements (120°C+).
Corrosion ProtectionMarine/coastal installationsIndustry Standard: 24hr salt spray resistance (ASTM B117)
Our Base: 100hr salt spray resistance (ASTM B117)▲
Our Advanced: 500hr salt spray resistance (ASTM B117)▲▲		Base: Protects against mild salt exposure.
Advanced tier withstands harsh marine environments.		Base: Not suitable for direct seawater immersion.
Advanced: Heavier material increases handling difficulty.

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