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Yuyao PTFE Gasket
QS Gasket: Yuyao PTFE Gasket
Name: Yuyao PTFE Gasket
Standard: ASME B16.5
Material: Gylon 3500
Temperature: -268℃ to 260℃
Size: 2 Inch
Pressure: 150LB
Complete Set: with G10 Sleeve and Washers and ZPS
Compound: with High-performance modified polytetrafluoroethylene
Standard: ASME B16.5
Material: Gylon 3500
Temperature: -268℃ to 260℃
Size: 2 Inch
Pressure: 150LB
Complete Set: with G10 Sleeve and Washers and ZPS
Compound: with High-performance modified polytetrafluoroethylene
Quantity
The Yuyao PTFE Gasket, specifically the Gylon 3500 grade, is a high-performance modified polytetrafluoroethylene (PTFE) gasket designed for demanding sealing applications. Manufactured in accordance with ASME B16.5, this NPS 2-inch, Class 150 LB gasket delivers exceptional sealing integrity across an extreme temperature range from –268 °C to +260 °C. Each complete set includes G10 sleeves, washers, and a full ZPS hardware package, ensuring ready-to-install convenience for critical piping connections.
Material Composition and Properties
Gylon 3500 is a specific grade within Garlock’s renowned Gylon family. Unlike virgin PTFE, which suffers from cold flow and creep relaxation, this material incorporates special fillers that substantially enhance mechanical strength, creep resistance, and thermal conductivity. The modified-PTFE matrix provides a dense, uniform structure that resists permeation and maintains bolt torque retention over extended service life. Visual identification is straightforward – the gasket features a distinctive brown surface with a blue stripe, enabling rapid field verification.
Key Performance Advantages
Superior Sealing Capability – The modified PTFE composition delivers reliable sealing even under low flange bolt loads, making it ideal for applications where traditional gaskets frequently leak. Its resilience accommodates flange surface irregularities and thermal movement.
Exceptional Thermal Stability – Proven stable from cryogenic conditions (–268 °C) through elevated temperatures (260 °C), this Yuyao PTFE Gasket withstands severe thermal cycling without degradation, performing equally well in liquefied natural gas services and high-temperature steam lines.
Broad Chemical Resistance – Resistant to strong acids (excluding hydrofluoric acid), alkalis, solvents, hydrocarbons, and aggressive media. In food and beverage processing, including wine production, Gylon grades maintain product purity and prevent contamination during juice fermentation and steam-in-place sterilization.
Pressure Handling – Rated up to 1,200 psig (approximately 83 bar), depending on flange design and service conditions.
Applications
The Yuyao PTFE Gasket is widely deployed across:
- Chemical processing plants – sealing flanges handling corrosive chemicals and solvents
- Oil and gas operations – hydrocarbon streams, fuels, and refinery process lines
- Pharmaceutical and food industries – meeting FDA hygienic standards for clean services
- Cryogenic systems – liquefied gases and low-temperature transfer lines
- Power generation – steam and cooling water circuits
- Chemical processing plants – sealing flanges handling corrosive chemicals and solvents
- Oil and gas operations – hydrocarbon streams, fuels, and refinery process lines
- Pharmaceutical and food industries – meeting FDA hygienic standards for clean services
- Cryogenic systems – liquefied gases and low-temperature transfer lines
- Power generation – steam and cooling water circuits
Yuyao’s PTFE Gasket Industry
Yuyao City, located in Zhejiang Province, has emerged as a significant manufacturing hub for PTFE-based sealing products in China. The region benefits from a mature industrial ecosystem, with numerous specialized factories producing expanded PTFE sheets, cut gaskets, and custom die-formed components. Local manufacturers leverage advanced compression molding and skiving technologies, supported by a well-developed supply chain for raw PTFE resins and fillers. Yuyao’s production cluster supplies both domestic infrastructure projects and export markets, with many facilities holding ISO 9001 and API certifications. The concentration of technical expertise and cost-effective production makes Yuyao a competitive source for high-quality PTFE gaskets that meet international standards like ASME, DIN, and JIS.
Conclusion
The Yuyao PTFE Gasket in Gylon 3500 offers proven reliability, broad chemical compatibility, and extreme-temperature performance for critical bolted connections. For fluid-specific compatibility or custom size requirements, please consult Xiamen Qishine’s technical team. This product combines Yuyao’s manufacturing capability with world-class material science to deliver sealing solutions you can trust.
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