VCXT™ High-Temperature Flange Insulation Kits for Elevated Temperature Pipeline Applications
VCXT™ high-temperature flange insulation kits are engineered to deliver reliable sealing performance and maintain electrical isolation across a wide range of flange classes and seating stresses in elevated-temperature service environments. Designed for demanding industrial applications, these advanced flange isolation systems provide exceptional sealing integrity while supporting effective cathodic protection.
VCXT™ insulation kits are suitable for use in load-compromised flange connections, including damaged flanges, lined flanges, and heavily bolted assemblies where high gasket stresses may be generated. Their robust design ensures dependable performance in challenging operating conditions where conventional flange insulation solutions may be inadequate.
The insulating gaskets, sleeves, and washers have been specifically developed for standard pipeline flange applications requiring both high-integrity sealing and long-term electrical isolation at elevated service temperatures. By preventing galvanic corrosion and supporting cathodic protection systems, VCXT™ flange insulation kits help extend pipeline service life and reduce maintenance costs.
For non-standard bolted connections or specialized application requirements, please contact your regional GPT sales manager for technical guidance and product recommendations.
Features & Benefits
- Certified Fire Safety: Fully compliant with API 607 and API 6FB fire test standards for hazardous applications.
- Extreme Temperature Range: Significantly exceeds traditional vermiculite and glass/epoxy limits with a maximum continuous rating up to 1,832°F / 1,000°C.
- Broad Chemical Resistance: Formulated for reliable sealing across a full pH 0-14 range, safely handling sweet/sour gaseous and liquid hydrocarbons.
- Superior Metallurgy: Standard 316L core and washer materials ensure strict NACE MR0175 compliance.
- High Compression Sealing: Achieves an incredibly strong seal across a wide variety of flange surface finishes.
- Exceptional Durability: Boasts better handling and shipping integrity than traditional mica or vermiculite-based alternatives.
- Standard & Custom Sizing: Readily available in standard nominal pipe sizes (NPS) from 1/2" to 24".
Applications
- Fire-safe flange insulation systems designed to work alongside cathodic protection programs.
- Electrical isolation between dissimilar metals which prevents galvanic corrosion and extend equipment life.
- Wellhead isolation solutions for inter-connected flow lines and pipeline systems.
- Reliable sealing and isolation for valve flange connections.
- High-performance flange sealing for Christmas Tree connections in oil and gas operations.
- Durable isolation and sealing solutions for pump connections.
- Corrosion-resistant flange protection for compressor connections.
- Seamlessly mates mismatched ring-joint (RTJ) and raised-face (RF) flanges. VCFS provides a secure seal on RTJ, raised-face, flat-face, and slip-on flange configurations.
- Prevents fluid-trap corrosion between ring-joint (RTJ) flanges, even in environments with high concentrations of CO₂, H₂S, and other aggressive hydrocarbon media.
- Reduces turbulence and minimizes flow-induced erosion between RTJ flange connections, helping improve system reliability and performance.
- Superior alternative to GRE gaskets and components for demanding steam service applications.
Product Specifications
- Operational pressure range: Full vacuum to ASME B16.5 1500# API
- Maximum Operating Temperature Range: -328°F to 770°F (-200°C to 410°C)
Note: Electrical values are based on laboratory conditioned samples in laboratory conditions. Exposure to moisture or elevated temperature will change values.