Hygienic O-Rings
As a universal sealing component, Hygienic O-rings are used in nearly all applications and offer excellent value for money. Available in all elastomer materials, Hygienic O-rings from Freudenberg Sealing Technologies are suitable for many applications in the food and beverage industry. They are fully certified and meet all special requirements. Oval, rectangular, semicircular, and x-shaped cross-sections are possible, in addition to round cross-sections.
An important aspect of selecting the right O-Ring is understanding the O-Ring material and its properties. To ensure optimal performance, it's crucial to consider O-Ring Compatibility. Use this helpful O-Ring Calculator to assist in your selection.
Furthermore, Chemical Compatibility is a critical factor. Refer to the Chemical Resistance Guide to ensure the O-Ring material can withstand the specific chemicals it will encounter in your application.
Hygienic O-rings from Freudenberg Sealing Technologies are versatile sealing components widely used across numerous applications. These O-rings are available in a wide range of elastomer materials, making them adaptable to diverse operational needs and environments.
Fully certified to meet stringent industry standards, they comply with FDA, EU (Reg.) 1935/2004, and other relevant regulations, ensuring safety and compatibility with food-grade applications. The design flexibility of Hygienic O-rings allows for various cross-sectional shapes, including oval, rectangular, semicircular, x-shaped, and the traditional round cross-sections, enabling them to meet specific sealing requirements.
A key consideration when selecting an O-ring is the material's properties and compatibility with the application environment. Freudenberg offers a comprehensive portfolio of materials tailored to withstand specific challenges such as exposure to aggressive chemicals, high temperatures, or CIP/SIP cleaning processes. This makes them ideal for static sealing in aggressive media environments. Additionally, Freudenberg provides access to tools like the O-ring Calculator and the Chemical Resistance Guide to assist customers in selecting the most suitable material based on application-specific needs.
Hygienic O-rings also offer exceptional performance in static sealing applications where there is no movement between the sealing component and the surface. They can function as static axial seals (parallel to the seal centerline) or static radial seals (perpendicular to the seal centerline), ensuring reliable sealing against liquids and gases. Their ease of installation in compact spaces further enhances their usability in complex systems.
Freudenberg's commitment to innovation extends beyond standard designs. Customers benefit from a broad assortment of quickly available standard parts in international dimensions as well as custom-designed solutions tailored to unique requirements. Advanced manufacturing techniques allow for surface coatings that reduce wear and tear, improve durability, and simplify installation and maintenance. The availability of encapsulated O-rings with FDA-compliant cores and covers further expands their applicability in demanding environments.
The Main Benefits for You
Available in nearly all elastomers
Broad range of dimensions
Good value for money
Universal use
Easy Installation in small spaces
High availability
Static and Dynamic Sealing at the Highest Quality Level
Endless O-Rings with a circular cross-section: O-Rings are among the sealing classics par excellence. Primarily used for static sealing of inactive machinery components against liquids and gases. Special solutions and special forms from Freudenberg Sealing Technologies are also suitable as dynamic sealing elements, e.g. as piston or rod seals in the hydraulic system.
High-Tech Seal Instead of Category C Material
The hallmark of the O-Ring is its diversity. As diverse as its areas of application, from tap fittings to air-conditioning systems, from the car engine to the dental drill, are the requirements that are being placed on it. Depending on the application, the O-Ring must be resistant to ozone, swelling or high temperatures, chemically stable at times, then pressure-resistant or flexible at low temperatures, and in the food industry it needs to be FDA-compliant, i.e. compatibility with foodstuffs is required.
In short, the supposedly simple C part has evolved into a high-tech seal. This requires in-depth knowledge of materials and advanced process engineering and quality assurance methods. An example: if necessary, Freudenberg Sealing Technologies can coat the surface of an O-Ring with appropriate powders, specialty greases, emulsions or lacquers. In conjunction with the appropriate gasket material, the classic can thus be optimized for the particular application: reduced wear and tear mean longer durability, not to mention the ease of installation and maintenance of the coated rings.
Standard Parts and Individual Custom Designs
As additional customer benefits, Freudenberg Sealing Technologies offers you the following:
A unique, broadly differentiated O-Ring assortment of quickly available standard parts in all prevalent international dimensions.
Individually designed special solutions on the basis of several hundred materials.
O-Ring seals from Freudenberg Sealing Technologies can be adapted across all industries and market segments to technically demanding installation and operating conditions on a customer-specific basis.
Great design variety – special shapes, X- and D-Rings are also on offer.
Encapsulated O-Rings - the Covering Makes the Difference
Elasticity with the greatest possible media resistance – encapsulated O-Rings offer outstanding functional reliability in demanding static sealing situations.
The combination of an elastomer O-Ring and a closed encapsulation made of modified PTFE makes encapsulated O-Rings from Freudenberg Sealing Technologies an ideal sealing component for contact with aggressive media: with simultaneously high elastic behaviour for an optimal contact pressure, the kind that only an elastomer can provide.
Depending on the temperature resistance needed, either FKM or VMQ is used as the core material. The encapsulation consists of FEP or PFA.
The range of application focuses exclusively on static sealing due to the encapsulation. Encapsulated O-Rings are available in nearly all desired sizes, inner diameters and ring thicknesses, in metric or imperial dimensions. Both the encapsulation and, if desired, the elastomer core are FDA-compliant.
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