O-Ring 4.76x1.78 MVQ - Silicone

Applications

The **O‑Ring 4.76x1.78 MVQ 70 ShA is a professional-grade industrial sealing component designed for static and surface sealing in hydraulic, pneumatic and general industrial systems. With internal diameter of 4.76 mm and cross-section of 1.78 mm, this rubber gasket fits compact sealing grooves and offers dependable performance where high durability and precision are required. The MVQ (silicone) material in 70 ShA hardness provides excellent chemical and thermal stability, making the ring particularly suitable for industrial sealing in aggressive environments. Whether used in pumps, valves, actuators or machinery apparatus, this sealing ring supports high-reliability installations and maintenance programs.

Advantages

• High durability material: The MVQ silicone elastomer exhibits outstanding resistance to ozone, UV radiation, weathering and aging — ideal for industrial sealing rings in challenging conditions.

• Wide temperature range: The MVQ compound in 70 ShA delivers reliable operation from approx. -60 °C up to +200 °C (with suitable compounds even higher) — enabling use in extreme thermal environments.

• Precise dimensioning: Internal diameter 4.76 mm x cross-section 1.78 mm ensures accurate fit in sealing seats, minimizing leakage risk and optimizing sealing integrity.

• Pack quantity - economic for B2B: Supplied in a pack of 100 pieces, it is cost-efficient for procurement, spare-parts inventory, service kits or production maintenance.

• Industrial sealing focus: Tailored for rubber seals, O-ring industrial applications, sealing solutions in hydraulics and pneumatics, this product meets the demands of OEMs, MRO departments and technical buyers.

• Local stock & fast dispatch: Located in the warehouse at Lublin, ul. Smoluchowskiego 1, building 4 — enabling 24h delivery to minimize downtime and keep production running.

Technical Data

• Internal Diameter (ID): 4.76 mm

• Cross-section (CS): 1.78 mm

• Material: Silicone (MVQ / VMQ)

• Hardness: 70 Shore A

• Typical Temperature Range: approx. -60 °C to +200 °C

• Colour: Standard red/brick (typical for silicone MVQ)

• Pack Size: 100 pieces

• Recommended Use: Static and face sealing; less suited for severe dynamic application

• Warehouse Location: Lublin, ul. Smoluchowskiego 1, building 4

• Lead Time: 24h dispatch from stock

The silicone MVQ elastomer is widely known for maintaining flexibility even at very low temperatures, for strong resistance to ozone and weather-exposure, and for reliable performance in industrial sealing applications. It represents a solid choice when high durability combined with thermal and environmental resilience is required.

FAQ - Frequently Asked Questions

Q1: Is this O-Ring suitable for hydraulic and pneumatic systems?
Yes, the 4.76x1.78 mm MVQ O-Ring is designed for industrial sealing tasks including hydraulic and pneumatic applications. The MVQ silicone material offers high chemical and temperature resistance, making it a robust rubber seal for demanding environments.

Q2: What is the significance of the 70 ShA hardness rating?
The 70 Shore A hardness indicates a medium‐firm silicone elastomer — providing good compression set resistance, shape stability and durability under load. For MVQ material, this hardness balances sealing performance with longevity in industrial conditions.

Q3: Can this seal be used in dynamic (moving) applications?
While MVQ silicone O-Rings perform excellently in static or low-movement applications, they may not be ideal for high-wear dynamic applications due to lower abrasion resistance compared to specialty elastomers. Evaluate system movement, friction and load before selecting for dynamic use.

Q4: What are the key advantages of using MVQ silicone in this dimension?
MVQ silicone offers: broad thermal range, excellent aging and ozone resistance, reliable static sealing performance and suitability for industrial environments. In the 4.76x1.78 mm size and 70 ShA hardness, it supports precise sealing in compact gaskets and components where high reliability is required.

Q5: How quickly can I receive this product and how is it packaged?
This O-Ring is supplied in a pack of 100 pieces, optimised for business-to-business procurement. It is stocked in the warehouse in Lublin (ul. Smoluchowskiego 1, building 4) and is eligible for dispatch within 24 hours, ensuring minimal disruption to maintenance or production schedules.