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Suzhou Insulating Flange Kit
QS Gasket: Suzhou Insulating Flange Kit
Product: Suzhou Insulating Flange Kit
Washer: Phenolic and ZPS
Diameter : 10 Inch
Gasket: Neoprene Faced Phenolic
Class: 150
Sleeve: G10
Type: F
Application: Design for ASME B16.5 Low Pressure Flange
Washer: Phenolic and ZPS
Diameter : 10 Inch
Gasket: Neoprene Faced Phenolic
Class: 150
Sleeve: G10
Type: F
Application: Design for ASME B16.5 Low Pressure Flange
Quantity
Qishine’s Insulating Flange Kit represents a premium solution for cathodic protection systems, expertly designed for 10-inch diameter ASME B16.5 low-pressure flanges (Class 150). This kit is engineered to provide effective electrical isolation between flange faces, preventing galvanic corrosion and extending the service life of pipeline infrastructure . Manufactured in Wenzhou to stringent quality standards, the kit incorporates components that meet ASME B16.5 and B16.47 specifications, ensuring compatibility with standard piping systems .
Kit Components & Materials
The comprehensive kit includes precision-engineered components for reliable sealing and insulation:
The comprehensive kit includes precision-engineered components for reliable sealing and insulation:
- Gasket: Neoprene-faced phenolic (Type F), offering superior resilience, robustness, and sealing performance for raised face flanges . The neoprene facing ensures excellent sealing while the phenolic core provides dielectric properties.
- Insulating Sleeves: G10 grade (NEMA LI-1, BS EN 60893-3-2-EPGC201) with minimum compressive strength of 345 MPa and dielectric strength of 10.2 kV/mm . G10 sleeves prevent electrical continuity through the bolts.
- Washers: Phenolic insulation washers paired with ZPS (zinc-plated steel) metallic washers per bolt, providing both insulation and load distribution . Metallic washers are electro-plated for corrosion resistance.
Application Scenarios
This insulating flange kit is critical for:
This insulating flange kit is critical for:
- Cathodic Protection Systems: Providing electrical isolation to confine impressed currents within designated circuits .
- Dissimilar Metal Joints: Preventing galvanic corrosion where piping material spec breaks occur .
- Buried Pipelines: Insulating flanges to prevent stray current corrosion and ensure cathodic protection effectiveness .
- Chemical Processing & Petrochemical Plants: Protecting flanged connections in corrosive environments .
Key Advantages
✓ Engineered for ASME B16.5 Class 150 raised face flanges
✓ G10 sleeves deliver high electrical insulation resistance (minimum 5.0 × 10⁴ MΩ)
✓ Neoprene-faced phenolic gasket ensures reliable sealing under low-pressure service
✓ Complete kit includes all components for full assembly – gasket, sleeves, and washers
✓ Type F design fits raised face flanges (recommended with flange protectors to prevent bridging)
✓ Proven performance in pipeline cathodic protection applications
✓ Engineered for ASME B16.5 Class 150 raised face flanges
✓ G10 sleeves deliver high electrical insulation resistance (minimum 5.0 × 10⁴ MΩ)
✓ Neoprene-faced phenolic gasket ensures reliable sealing under low-pressure service
✓ Complete kit includes all components for full assembly – gasket, sleeves, and washers
✓ Type F design fits raised face flanges (recommended with flange protectors to prevent bridging)
✓ Proven performance in pipeline cathodic protection applications
Compliance & Quality
The insulating flange kit is designed to ASME B16.5 and B16.47 specifications, with components conforming to NEMA G10 standards. This ensures dimensional accuracy and long-term reliability in critical cathodic protection installations .
The insulating flange kit is designed to ASME B16.5 and B16.47 specifications, with components conforming to NEMA G10 standards. This ensures dimensional accuracy and long-term reliability in critical cathodic protection installations .
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