DESCRIPTION
Flange Insulation Gasket Kits are engineered sealing and electrical isolation systems designed to prevent galvanic corrosion, reduce stray current transmission, and electrically isolate flange connections in pipeline systems.
These kits are commonly used in oil & gas, petrochemical, water treatment, offshore, and power generation industries where cathodic protection and corrosion control are critical. A complete flange insulation kit typically includes an insulation gasket, insulating sleeves, insulating washers, and steel backing washers.
Flange insulation gasket kits are manufactured from high-performance insulating materials such as G10, G11, Phenolic, GRE, PTFE, and other dielectric composites to ensure reliable sealing performance under high pressure and elevated temperature conditions.
TECHNICAL DATA
Product Type: Flange Insulation Gasket Kit
Gasket Materials: G10, G11, Phenolic, GRE, PTFE
Facing Material: NBR, EPDM, Viton, PTFE
Temperature Range: -50°C to +220°C
Pressure Rating: ANSI 150# to ANSI 2500#
Flange Standards: ANSI, ASME, API, DIN, JIS
Dielectric Strength: Up to 35 kV
Water Absorption: Low
Chemical Resistance: Excellent
Application Medium: Oil, Gas, Water, Chemicals
Kit Components: Gasket, Sleeve, Washer, Steel Washer
KEY FEATURES
Excellent Electrical Isolation: Prevents galvanic corrosion and stray current transfer between flanges.
Reliable Sealing Efficiency: Maintains leak-free sealing under high pressure pipeline systems.
High Mechanical Strength: Designed for demanding industrial and offshore applications.
Superior Chemical Resistance: Performs effectively in corrosive process environments.
Wide Temperature Capability: Suitable for low and high temperature operating conditions.
Extended Service Life: Reduces maintenance costs and improves pipeline protection reliability.
Compatible With Multiple Standards: Available for ANSI, ASME, API, DIN, and JIS flanges.
Supports Cathodic Protection Systems: Enhances pipeline corrosion prevention performance.
TYPES OF FLANGE INSULATION GASKET KITS
Type E (Full Face Type)
Type E gaskets cover the entire flange face and include bolt hole openings for complete flange isolation and easy installation.
Advantages:
- Full flange face protection
- Easy alignment during installation
- Excellent sealing distribution
Applications:
- Water pipelines
- Low to medium pressure systems
- General industrial piping
Type F (Raised Face Type)
Type F insulation gaskets fit only inside the bolt circle and are specifically designed for raised face flanges.
Advantages:
Improved sealing concentration
Reduced gasket compression loss
Suitable for raised face flange systems
Applications:
Oil & gas pipelines
Petrochemical systems
Process industries
Type D (Ring Type / RTJ Type)
Type D kits are designed for Ring Type Joint (RTJ) flanges operating under high pressure conditions.
Advantages:
High pressure sealing capability
Excellent mechanical integrity
Suitable for critical services
Applications:
Offshore platforms
Refinery pipelines
High pressure transmission systems
APPLICATIONS
Oil and gas transmission pipelines
Petrochemical and refinery plants
Offshore and marine piping systems
Power generation facilities
Water treatment and desalination plants
Cathodic protection systems
Chemical processing industries
Underground pipeline isolation systems
