In industrial piping systems, especially in oil, gas, and petrochemical applications, flange insulation kits play a crucial role in corrosion prevention, electrical isolation, and sealing integrity. Among the various configurations, the LP-Type flange insulation kit with G10 3mm GRE G10, SES sealing rings, G10 sleeves and washers, and steel back-up washers stands out for its robust performance.
Let’s dive into the structure, key components, and the benefits of this advanced insulation kit.
🔩 Composition of the LP-Type Flange Insulation Kit
The LP (Lubricated Phenolic) type kit typically includes:
🔹1. G10 3mm GRE Gasket (Glass Reinforced Epoxy)
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Made from 3mm thick G10 GRE, this gasket offers high mechanical strength, excellent electrical insulation, and resistance to chemicals and moisture.
🔹2. SES Type Sealing Ring
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A precision-engineered spring-energized seal (SES) provides excellent sealing performance under high-pressure, high-temperature, and aggressive media conditions.
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The SES ring ensures zero leakage and reduces flange face erosion.
🔹3. G10 Sleeves
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Insulate the bolts from the flange, preventing metal-to-metal contact and blocking stray currents or galvanic corrosion.
🔹4. G10 Insulating Washers
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Placed under nuts and bolt heads to maintain full insulation across the flange assembly.
🔹5. Steel Back-up Washers
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Provide mechanical strength and even load distribution during bolt tightening, preventing deformation of the G10 washers.
⚙️ Key Features and Technical Benefits
| Component | Feature | Benefit |
|---|---|---|
| G10 GRE Gasket | High compressive strength | Long-term sealing under load |
| SES Seal | Spring-loaded elastomeric lip | Zero-leak sealing in aggressive media |
| G10 Sleeve & Washer | Excellent dielectric properties | Prevents electrochemical corrosion |
| Steel Washer | Strong and rigid | Maintains flange pressure integrity |
🛡️ Main Advantages of LP-Type Flange Insulation Kit
✅ 1. Superior Electrical Insulation
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Prevents stray current flow and galvanic corrosion between dissimilar flanges (e.g., carbon steel and stainless steel).
✅ 2. Effective Corrosion Protection
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Isolates metal surfaces and eliminates corrosion-causing electrolytic paths.
✅ 3. High Chemical Resistance
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G10 GRE and SES seals are resistant to oil, gas, water, and most industrial chemicals.
✅ 4. Excellent Mechanical Stability
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Can handle high bolt loads and cyclic pressure changes without deformation or failure.
✅ 5. Ease of Installation
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Pre-cut, factory-tested components reduce on-site labor and risk of installation errors.
🏭 Application Areas
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Oil & Gas Pipelines
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Refineries and Chemical Plants
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Water Treatment Facilities
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Power Plants and Marine Systems
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Cathodic Protection Systems
🌐 Why Choose DXTSEALS for LP-Type Kits?
At DXTSEALS, we specialize in custom-engineered flange insulation kits that meet ANSI, ASME, DIN, and other global standards. Our LP-type kits with G10 GRE + SES seal design are manufactured with tight tolerances and tested for sealing integrity, dielectric strength, and compressive load performance.
✅ Conclusion
The LP-type flange insulation kit featuring G10 3mm GRE G10, SES sealing rings, G10 sleeves and washers, and steel back-up washers offers a powerful combination of sealing efficiency, corrosion resistance, and electrical isolation. It is a reliable solution for modern industrial pipeline systems that demand long-term durability and safety.
👉 For technical specifications or a customized quote, visit www.dxtseals.com or contact our engineering team today.