As outlined by Electric Solenoid Valves in their article, “NBR vs. Viton Seals,” selecting the right seal for motorized liquid or gas valves is critical to performance and safety. Both Nitrile (NBR) and Viton™ seals are highly regarded for their chemical and temperature resistance, but each has unique properties that make them suitable for specific applications. Click here to read the full article.

Viton™ seals, made from fluorocarbon elastomers, offer excellent resistance to extreme temperatures and harsh chemicals. Withstanding up to 210°C, they are ideal for applications such as aircraft fuel systems and vacuum systems. However, Viton seals may stiffen in dynamic conditions at lower temperatures.

On the other hand, NBR seals, created from acrylonitrile butadiene rubber, provide superior flexibility in low-temperature environments, maintaining performance down to -30°C. This makes them a better choice for cold, dynamic conditions, particularly in automotive and marine fuel systems. However, their upper temperature limit of 100°C limits their application in high-heat scenarios.

Key differences also include material composition and density. Viton’s fluorine content gives it higher density and durability, making it less flexible than NBR but more resilient under pressure. Choosing between the two depends on environmental factors like temperature range, pressure, and exposure to chemicals.

Specializing in high-quality seals made from Viton™ and NBR materials, these solutions ensure reliable performance tailored to specific needs, whether requiring exceptional heat resistance or flexibility in cold environments.

Click here to learn more about Eagle Elastomer capabilities or products.

Article with all rights reserved, courtesy of electricsolenoidvalves.com.

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