The High Performance Gasket (HPG) is a semi-metallic spiral wound gasket capable of providing class leading sealing performance across a wide range of industrial sealing applications.
The HPG gasket has been designed as a direct, cost effective replacement for conventional spiral wound gaskets. Sealing element design modifications greatly enhance sealing performance while maintaining full compliance with the industry recognized ASME B16.20 engineering standard. HPG gaskets can be used in all areas where conventional graphite filled spiral wound gaskets are currently in use such as steam, hydrocarbon and chemical service. HPG are particularly suited for use in demanding sealing applications, in critical service duty where enhanced levels of joint integrity are required or as an integral part of an emissions reduction program.
TECHNICAL FEATURES & BENEFITS
› High Density Sealing Element
Enhanced sealing performance in load-compromised and cyclic service
› High Purity Flexicarb SEL+ Graphite
Corrosion mitigation and long term stability in elevated temperature service
› Controlled Filler Protrusion
Enhanced sealing performance under low load and on damaged flange sealing faces
› QR Code Identification
Full material traceability and unique identification for QA and Joint Management
SEALS BETTER
With high performance windings and filler, the Flexitallic HPG is denser than a conventional SWG, consistently providing lower leak rates than industry average. Meeting the very latest ASME B16.20 standards, upon compression, the HPG’s design is more forgiving of flange face imperfections and also reduces load loss due to winding tightness.
LASTS LONGER
Flexitallic’s oxidation inhibited graphite filler Flexicarb SEL+ withstands higher temperatures providing longer service life for the HPG. Significantly lower levels of impurities than industry average reduces the likelihood of flange face corrosion. Flexicarb SEL+ contains less than 300ppm sulfur content, a significant upgrade over base industrial grade graphite.
SMART TECHNOLOGY &TRACEABILITY
Each HPG has a distinct batch number and QR code, giving you quick access to gasket composition and material certificates by scanning the HPG with your phone or entering a batch number in our online web app
www.flexqr.com
OXIDATION
RESISTANCE
Flexible graphite is more than 98% carbon. If there is any oxygen present, or any trace transition metals which are known oxidation catalysts, then at elevated temperatures the graphite will oxidize. Oxidation causes loss of material which creates leakage, emissions or at worst complete failure of the seal over time.
Flexitallic SEL+ has significantly lower impurities than the industry average, with less than 300 parts per million of sulphur and less than 10 parts per million of chloride. It is also treated with oxidation inhibitors ensuring high sealing integrity in continuous elevated temperatures.
TYPICAL
PROPERTIES
› Density: 1.0 – 1.2 g/cc
› Carbon: ≥ 98.0 %
› Ash: ≤ 2.0 %
› Total Sulfur: < 300 ppm
› Total Chloride: ≤ 10 ppm
› Total Fluoride: ≤ 10 ppm
› Total Halogen: ≤ 310 ppm
› Weight loss per hour: < 1.5 % / hour
ADVANTAGES
› Lower Leak Rate
Improvement in design leads to lower leak rates
› Greater Oxidation Resistance
Improvement in graphite filler leads to lower oxidation
› Reduced Compression Inconsistencies
Improvement in construction reduces compression inconsistencies
› Reduced Load Loss Due to Winding Tightness
Maintains stress level under bolt load
› Material Traceability
Includes materials traceability report as a standard offering
