Viton/FKM and HNBR O-rings

FKM/Viton and HNBR O-rings — Seals for Extreme Conditions

FKM (Viton) fluoroelastomer and HNBR O-rings are the top solution for applications involving aggressive chemicals, high temperatures, and corrosive environments. Available according to AS 568A and ISO 3601 standards.

🔧 Technical Specifications

• FKM/Viton: Hardness 75, 80, 90 Shore A
• HNBR: Hardness 70, 80, 90 Shore A
• FKM Temperature: -20°C to +200°C
• HNBR Temperature: up to +150°C, resistant to ozone and UV
• Standards: AS 568A, ISO 3601

⚙️ Typical Applications

• Automotive and Transportation Industry: Widely used for engine gaskets, O-rings for injection systems, and fuel hoses, due to their resistance to gasoline, diesel, and motor oils.
• Oil and Gas: Found in pump seals, valves, and drilling equipment, resisting aromatic hydrocarbons and corrosive drilling fluids.
• Chemical Industry: Used for diaphragms, flat gaskets, and O-rings in processing plants where contact with concentrated inorganic acids or solvents is frequent.
• Aerospace: Used in aircraft engines and hydraulic systems to prevent fluid leaks at extreme temperatures and vacuum conditions.
• Food and Pharmaceutical Industry: Certain FKM 75 variants comply with FDA or USP Class VI standards, being used in food processing or medical equipment.
• Hydraulic systems with aggressive fluids
• Process equipment at high temperatures
• Pumps and valves with corrosive media

📦 Availability

• FKM 75A: In stock
• HNBR: On request (MOQ 500– 3000 pcs)

For personalized offers or large quantities, contact the UNIVERGO team.