SunPass High Carbon Packing with Graphite Impregnation is engineered from softened high-carbon continuous yarns, which are thoroughly impregnated with specialized lubricants and graphite particles. This proprietary process effectively fills voids within the structure, providing built-in break-in lubrication and forming an effective seal against leakage. It is designed for use in pumps and valves operating under high-pressure and high-temperature conditions. Application of SunPass High Carbon Packing with Graphite Impregnation: STYLE 6900HG is suitable for a wide range of equipment—including pumps, boiler feed pumps, valves, mixers, and refiners—across industries such as pulp & paper, power generation, chemical, and pharmaceutical. It is compatible with virtually all common media, including cold and hot water, steam, chemicals, hot gases, alcohols, solvents, and heat transfer fluids.

In industries such as food and beverage, pharmaceuticals, and bio-fermentation, the safety of sealing materials for production equipment is paramount. Whether it's aseptic filling lines, fermenters, or food-grade pumps and valves, correctly selecting validated food-grade sealing materials is the fundamental prerequisite for eliminating contamination risks and ensuring product purity and consumer health. Currently, the most mainstream and reliable food-grade packings: White pure polytetrafluoroethylene (PTFE) packing: Woven from 100% pure PTFE fibers, it contains no harmful additives. Its natural chemical inertness, extremely low adsorption, and excellent corrosion resistance allow it to safely contact various foods, acids, alkalis, and cleaning agents without contaminating the media. It is ideal for rotating or reciprocating parts such as valves and pumps. How to choose? Based on the specific medium being contacted (acidic, oily, alcoholic), temperature, and pressure, choose the more s...

 SUNPASS SEALING TECHNOLOGY (ZHEJIANG) CO., LTD., a leading 45-year professional manufacturer of industrial sealing and thermal insulation products, today announced the official launch of its upgraded Graphite PTFE Gland Packing (Black PTFE Gland Packing). Designed for extreme industrial operating conditions, this new product delivers exceptional chemical resistance, high-temperature stability and long service life, addressing critical sealing challenges across oil & gas, chemical processing, power generation and other core industries. Product Highlights: Engineered for Harsh Industrial Environments Sunpass’s Graphite PTFE Gland Packing is manufactured using premium graphite-impregnated PTFE yarns, combining the inherent non-stick and chemical-resistant properties of PTFE with the excellent thermal conductivity and lubricity of expanded graphite. Key performance advantages include: Broad Chemical Compatibility: Resists nearly all corrosive fluids, acids, alkalis and solvents, makin...