SEALMTL 675B FFKM O-Ring
Special Model for High-Temperature Amine Media | Benchmarking DuPont KALREZ® 6375 | Preferred Choice for Chemical/Pharmaceutical Industries
Core Features
SEALMTL 675B is a special perfluoroelastomer (FFKM) O-ring for high-temperature amine media. It is made of imported raw rubber, can partially replace DuPont KALREZ® 6375, and meets the ASTM D2000 perfluoroelastomer standard. The product has extreme chemical corrosion resistance in the temperature range of -10~230℃, especially excellent resistance to high-temperature organic amine media above 70℃. It can also cope with potent active pharmaceutical ingredients (APIs) and corrosive cleaning agents, adapt to SIP in-situ steam cleaning and CIP in-situ cleaning procedures, and has strong mechanical properties, making it the preferred seal for the chemical and pharmaceutical industries. |
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Key Performance Parameters
All product performances comply with ASTM standards, with high consistency in mass production, and third-party test reports are available
Test Item | Unit | Technical Index | Test Standard |
Shore A Hardness | — | 76 | ASTM D2240 |
100% Modulus | MPa | 9.8 | ASTM D412 (500mm/min) |
Tensile Strength | MPa | 18.8 | ASTM D412 (500mm/min) |
Elongation at Break | % | 192 | ASTM D412 (500mm/min) |
Compression Set (25% Compression, 70h×204℃) | % | 20.5 | ASTM D395B (214 O-RING) |
Low Temperature Brittleness Temperature | °C | -20 | ASTM D746-2007 |
Maximum Continuous Service Temperature | °C | 230 | Actual Working Condition Test |
Temperature and Chemical Resistance Performance
Temperature Range: -10℃~230℃, can withstand high-temperature fluctuations of in-situ steam cleaning, maintains good elasticity at low temperatures, and has no brittle fracture failure risk.
Chemical Resistance Level(++++=Excellent +++=Very Good ++=Good +=Poor):
• Excellent Resistance: Acids, alkalis, alcohols, aldehydes, ketones, esters, ethers, superheated water/steam, aromatic/aliphatic oils, ethylene oxide/propylene oxide, normal-temperature/high-temperature amine media above 70℃, active pharmaceutical ingredients (APIs), corrosive cleaning agents
• Good Resistance: Strong oxidants
• Very Good Resistance: Hot air
Applicable Industries and Application Scenarios
Core Applicable Industries
Fine Chemicals, Pharmaceutical Manufacturing, Petrochemical, Semiconductor Wet Process, Metallurgical Chemicals
Typical Application Scenarios
1. Mechanical seals for chemical pumps, valves and reactors, suitable for process systems of high-temperature amine media, acid gases and hydrocarbons; 2. Core seals for pharmaceutical equipment, such as seals for API synthesis reactors and sterile filling machines, supporting SIP/CIP cleaning; 3. Seals for semiconductor wet process equipment, such as chemical container seals and exhaust system seals for etching and cleaning equipment; 4. Seals for metallurgical chemical equipment, suitable for conveying and reaction equipment of acid solvents and corrosive cleaning agents; 5. Seals for centrifuges and measuring instruments, suitable for measuring and separating equipment of high-temperature corrosive media. Applicable Equipment: Amine medium process pumps, pharmaceutical API reactors, semiconductor wet cleaning machines, anti-corrosion centrifuges, chemical metering pumps, etc. |
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Product Processing and Certification
Can be processed into O-rings, diaphragms, washers, rubber strips, rubber plates and custom products, supporting non-standard seal structure design; the product meets high cleanliness requirements, no harmful substances precipitate, and can be used in semiconductor, pharmaceutical and other industries with strict cleanliness requirements.
For more product details, sample requests or custom sizes, please contact us directly for an exclusive solution: York@sealmtl.com. |