Resin-impregnated graphite sealing ring, with a temperature resistance of ≥ 300℃, a friction coefficient of ≤ 0.15. It is specially designed for high-temperature sealing scenarios, featuring excellent corrosion resistance. Direct supply from the original factory, leading industry density. Suitable for key fields such as chemical and mechanical industries.
Core Strengths
Polymer resin impregnation technology
The resin-impregnated graphite sealing rings adopt an epoxy resin/polyimide composite impregnation process, with a friction coefficient of ≤ 0.15, and the tensile strength is increased by 40% (tested according to ASTM D638). The temperature resistance range is from -200°C to 300°C.
Industry density advantage
Only 3 factories worldwide have mastered the technology for large-scale production of resin-impregnated graphite sealing rings. China Zhongqi Stone Technology (national certification) has an annual production capacity of over 2 million pieces, covering the high-end markets in Europe and North America.
Direct supply from the source factory
The entire chain from the graphite substrate to resin impregnation is controllable. It has passed ISO/TS 16949 certification, and the sealing rings have a corrosion resistance that meets the ASTM G54 standard, with a lifespan extended by 2-3 times (actual data).
Typical Application Scenarios
Chemical equipment
Sealing components for high-temperature and high-pressure reaction vessels, resistant to acid and alkali corrosion, with a sealing lifespan of ≥ 10 years (case: a certain chemical plant in Germany).
Precision machinery
Shaft seals for high-speed gearboxes, with anti-oil performance up to ISO 4927 standards, and friction loss reduced by 60% (measured data).
Energy equipment
Shaft seals for gas turbines, resistant to high-temperature oxidation, with stable sealing performance (case: an energy company in the United States).
Why Choose Us?
As the leading company in the resin-impregnated graphite sealing ring industry in China, Zhongguo Shiguo Technology has overcome the problem of interface bonding between resin and graphite, and passed the German TUV high-temperature sealing certification. We provide customized solutions, from material selection to process optimization, to ensure that the products meet the requirements of extreme working conditions.
Act Immediately
Provide your sealed scenario (temperature, pressure, medium), and we will provide a resin-impregnated graphite sealing ring selection plan (including corrosion resistance and friction coefficient test reports) within 48 hours. Verified by over 50 global customers: The resin-impregnated graphite sealing rings from Zhongshigong Technology ensure more reliable operation of critical equipment!
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