Shijiazhuang RuiSuo Seal Supplies Co., Ltd. www.ruisuoseal.com 1. Overview Non-Asbestos gaskets are made of aramid fibers, plant fibers, glass fibers, and synthetic rubber, and are an environmentally friendly alternative to traditional asbestos gaskets. They feature environmental safety, good temperature and pressure resistance, strong media resistance, and good processability, and are widely used in connections of pipes, pumps, valves, pressure vessels, chemical equipment, and other applications. Non-Asbestos Gaskets (NAFG). Their main characteristics are as follows: 1. Environmentally Friendly and Non-Toxic Contains no asbestos fibers, does not produce carcinogenic dust, and meets environmental and occupational health requirements. Complies with international trends towards asbestos-free sealing materials (such as relevant EU regulations). 2. Excellent Sealing Performance Excellent compressibility and resilience, maintaining a stable seal over a wide range of temperatures and pressures. Strong resistance to various media, working stably for water, steam, oil, weak acids, and weak alkalis (specific performance varies depending on the formulation). 3. Excellent Mechanical Properties High tensile strength, tear-resistant, and not easily broken. Longer service life than ordinary asbestos gaskets. 4. Excellent Temperature and Pressure Resistance Operating temperature generally reaches 200–350°C, with some high-end materials capable of even higher. Suitable for medium to high pressure sealing applications, such as flanges, pump valves, and pipe connections.

5. Adaptable to various working conditions Widely used in automotive parts, chemical, petroleum, pharmaceutical, power, and heating industries. Can be manufactured in various forms such as sheet metal, flange gaskets, and pipe gaskets. 6. Good processing performance Easy to cut and stamp into various shapes, suitable for mass production. Strong chemical stability, not prone to aging, resistant to media corrosion, and maintains stable performance over long-term use. Environmental Safety Sealing Performance Temperature Resistance Chemical Resistance Mechanical Strength Service Life Regulatory Compliance...

Asbestos-free gaskets environment-friendly, oil resistance d corrision-resistance, and widepide applications in the petrochemical, electric power, shipbuilding, food, pharmaceutica, automotive, and aerospac industries an ideel replacements for traditional gaskets.

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(Starting from Section 2: Selection Principles) Temperature (T) Pressure (P) Medium (M) Flange Type Considerations Operating temperature range System pressure / flange class Chemical compatibility FF / RF / worn flanges Recommended Material Type See Table 2 See Table 3 Recommended Gasket Type General-purpose NBR/SBR non-asbestos gasket Reinforced / high-strength non-asbestos gasket Aramid fiber + special rubber (HNBR, EPDM) Not recommended —* Use graphite / metallic gaskets Table 3 — Pressure-Based Material SelectionPressure Range Recommended Type PN10-16 General-purpose NAF sheet PN25-40 High-strength...

Table 5 — Flange Type Selection Flange Type Recommended Gasket Characteristics Lower hardness, higher compressibility Raised Face (RF) High-strength, better rebound Damaged / old flanges High-compressibility materials Application Scenario Recommended Type / Material Water / air / general pipelines NAF200/300, C-4300 Steam (150-250°C) Heat oil systems Diesel, oils, lubricants Weak acids / alkalis PN40 flanges NAF400, Blue-Gard 3300 C-4500 or equivalent NBR oil-resistant (NAF300O) C-4430 or equivalent High-strength NAF500 series Flange Size / Condition Recommended Thickness Principle: For higher...

SEAL Sealed work is am. open world VJhere there is pressure, there is a seal Shijiazhuang RuiSuo Seal Supplies Co., Ltd. is a manufacturer and supplier of seal products. The factory is located in Jingxian Industrial Zone, Hebei Province, with high-quality skilled employees and advanced equipment. With the continuous expansion of the market, the products have been extended from seals to plastic rubber and other products. -Skeleton oil seal -Hydraulic oil seal - rubber parts - plastic parts -Hydraulic Rubber hose and fittings -Mining rubber lining -Including customization of various non-standard...