O-Ring 393 x 7 mm MVQ - Silicone Sealing Ring

Applications

The O-Ring 393x7 mm MVQ 70 ShA is a precision-engineered silicone sealing ring designed for demanding industrial sealing requirements. This large-diameter ring finds use as a rubber gasket or static seal in hydraulic cylinders, pneumatic actuators, large flanged connections, and clean-room assemblies. Key search phrases include “silicone O-Ring 393x7”, “MVQ 70 ShA sealing ring 393 mm”, “industrial silicone rubber gasket 393x7” — enabling strong visibility in procurement and engineering searches. The term “industrial sealing ring” and “rubber gasket” are used to align with buyer language and algorithmic indexing.

Advantages

This sealing component offers significant benefits for B2B users:

• With internal diameter of approx. 393 mm and cross-section thickness of 7 mm, it accommodates large-scale systems and avoids custom machining - ideal for industrial maintenance or OEM integration.

• Manufactured from MVQ (methyl-vinyl silicone) material at 70 ShA hardness - delivering high durability, excellent resistance to extreme temperatures, ozone, UV-exposure and aging, a critical feature for long-life industrial sealing.

• Outstanding chemical stability and flexibility make it appropriate for hydraulic and pneumatic applications, clean-room equipment, food-grade or pharmaceutical machinery - where silicone is preferred for hygiene and thermal performance.

• Optimised for static and semi-static sealing environments: used as a technical sealing component where reliability is paramount. According to standard O-Ring handbooks, silicone compounds like MVQ show excellent temperature span but require correct groove design.

• Logistic advantage: stocked in Lublin (ul. Smoluchowskiego 1, building 4) with fast dispatch and 24 h delivery, supporting procurement workflows for maintenance and spare parts.

Technical Data

• Product type: O-Ring / silicone rubber gasket / industrial sealing ring

• Dimensions: inner diameter ~393 mm, cross-section thickness ~7 mm

• Material: MVQ (silicone)

• Hardness: 70 Shore A

• Typical temperature range: approx. -60 °C to +200 °C (depending on compound) - enabling use in both low-temperature and high-temperature industrial applications.

• Typical uses: hydraulic and pneumatic systems, large-scale flanged seals, machine covers, clean-industry equipment

• Colour: standard red/orange (common for MVQ silicone sealing rings)

• Warehouse & store: Lublin, ul. Smoluchowskiego 1, building 4 — 24 h delivery.

FAQ

Q1: Can this O-Ring 393x7 mm MVQ 70 ShA be used in hydraulic oil applications?
A1: While MVQ silicone offers exceptional temperature, ozone and weathering resistance, its compatibility with mineral oils or fuels may be limited compared to silicone-resistant specialty compounds. For purely hydraulic oil applications verify fluid compatibility before specification.

Q2: What is the best temperature range for this silicone sealing ring?
A2: The MVQ 70 ShA material is engineered to function reliably within a broad temperature span (roughly -60 °C to +200 °C) under static or low-motion applications. Extremes beyond this range should be evaluated on a case-by-case basis.

Q3: Is this O-Ring suitable for dynamic (moving) systems?
A3: This product is optimized primarily for static or low-dynamic sealing roles (large flanges, covers, housings). For high-frequency motion or reciprocating pistons, a elastomer specifically rated for dynamic use may provide better longevity.

Q4: How quickly can we receive this product in Poland?
A4: The item is stored at our warehouse in Lublin (ul. Smoluchowskiego 1, building 4) and qualifies for 24 h dispatch — enabling rapid fulfilment for B2B clients requiring fast turnaround.

Q5: Can different sizes or hardnesses be specified if needed?
A5: Yes — custom dimensions, material grades (e.g., FKM, EPDM) or altered hardness values can be offered. Please provide your required internal diameter, cross-section and application details for tailored recommendation.