O-ring 115x5 MVQ 70 ShA - Silicone Technical Seal

• Applications in Industrial Systems

• Key Advantages of MVQ Silicone

• Technical Specifications

Main Description

The O-ring 115x5 MVQ 70 ShA is a high-quality silicone sealing ring designed for demanding industrial applications where reliability, precision and resistance to harsh conditions are essential. Manufactured from MVQ silicone (methyl-vinyl silicone rubber), this technical seal offers excellent elasticity, stability and long service life, making it suitable for systems operating in extreme temperatures or exposed to environmental stress.

With an inner diameter of 115 mm and a cross-section of 5 mm, the ring ensures a secure and uniform seal in static applications, preventing leaks in hydraulic, pneumatic, thermal and mechanical installations. Thanks to its 70 Shore A hardness, the O-ring maintains an optimal balance between flexibility and compression strength, allowing it to fit tightly into standard sealing grooves without deformation or material fatigue.

MVQ silicone is known for its high resistance to ozone, UV radiation and oxidative aging, ensuring that the O-ring remains flexible even after prolonged operation. It also performs extremely well in low- and high-temperature environments, making it suitable for heating systems, pumps, valves, instrumentation, laboratory equipment and various industrial sealing units. Its chemical stability supports many neutral media, which further enhances versatility in professional settings.

As a rubber gasket used in B2B maintenance and production processes, the O-ring 115x5 MVQ 70 ShA is a trusted choice for manufacturers, repair services and engineers seeking dependable technical sealing for precision applications. Its geometry, material purity and stable compression set contribute to consistent sealing performance throughout the equipment’s operational cycle.

Technical Specifications

• Inner Diameter (ID): 115 mm

• Cross-section (CS): 5 mm

• Material: MVQ Silicone Rubber

• Hardness: 70 Shore A

• Seal Type: Static sealing ring

• Temperature Resistance: Very wide low-to-high temperature range

• Resistance: Ozone, UV, thermal aging, many neutral industrial media

FAQ

Q1: What does MVQ 70 ShA mean?
MVQ refers to silicone elastomer known for thermal and environmental resistance, while 70 ShA indicates the material’s hardness, suitable for precise and durable sealing.

Q2: Is this O-ring suitable for high-temperature environments?
Yes. MVQ silicone is one of the best materials for extreme temperatures, ensuring stable performance in both very low and high heat conditions.

Q3: Can it be used in hydraulic or pneumatic systems?
Yes. This O-ring provides reliable static sealing for many hydraulic and pneumatic assemblies, provided the working medium is compatible with silicone.

Q4: What makes MVQ silicone superior to common rubber materials like NBR?
S ilicone maintains elasticity over a wider temperature range and offers significantly better resistance to ozone, UV and long-term aging.

Q5: Is it suitable for static or dynamic applications?
It is primarily designed for static sealing, where the components do not move relative to one another.