Dynamic Seals

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DYNAMIC SEALS

Dynamic seals are used in applications with motion between the hardware component and the sealing solution. The motion can be rotary, translatory, reciprocating or oscillating. Effective dynamic seals need to maintain a balance between the sealing force, minimize the friction and furthermore prevent leakage.

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Product Overview

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Product details

Radial Shaft Seal

Radial Shaft Seals

The patented structure of the Freudenberg Simmerring® promotes high functional reliability and safe production processes. Its key benefit is its resistance to media and extreme temperatures – the substances only come in contact with high-performance materials like PTFE and Fluoroprene XP®. Available in different hygienic design options, rotary shaft seals lend themselves to diverse applications – in mixers, grinders and bottling systems.

Your main advantages
  • Variable and reliable use
  • Hygienic design – the absence of dead spaces
  • Excellent media- and temperature resistance due to high-performance materials
  • Broad range of designs
  • Low friction and anti-adhesion

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Butterfly Valve Seals

Freudenberg Sealing Technologies’ butterfly valve seals are suitable for the special requirements of the Food & Beverage industry, including resistance in aqueous media and CIP-/SIP cleaning processes as well as against high temperatures and media such as fat and nitric or formic acid (depending on the material). For hygienically demanding applications, dead-space-free variants conforming to hygienic design standards are available.

Your main advantages
  • Available in a broad range of high-performance materials
  • Individual design - tailored to your needs
  • Special design allows easy installation
  • Patented design for maximal operating cycles and minimal abrasion
  • Special variants like low-friction or hygienic design version

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Guide Band

Guide Bands

Freudenberg Sealing Technologies’ guide bands are available in a range of materials that ensure low wear. Special materials conform to legislation specific to the Food & Beverage industry and can be used even in direct media contact. They include PTFE Y005, which is made of a pure, virgin, high-grade PTFE and a filler. The materials for guide bands are also highly resistant to CIP/SIP cleaning media and processes.

Your main advantages
  • Highly media-resistant e.g. against CIP/SIP media
  • Very low tendency to extrusion
  • Long lifespan due to low wear properties
  • Range of available sizes up to 200 mm
  • Special variants for hygienically demanding applications

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U-Packings

U-Packings

Our U-Packings made of PTFE are highly media and pressure resistant - even in contact with especially aggressive media. Therefore they are a highly dependable sealing element ensuring an outstanding longevity. As U-Packings can be manufactured by machining, they are available in nearly every dimension. The corresponding spring is made from endless material. For this reason U-Packings can be provided very fast.

Your main advantages
  • Highly media and temperature resistant
  • Special variants for high-pressure or hygienic applications
  • No stick-slip effect
  • Longevity
  • Available in a wide range of dimensions due to flexible manufacturing processes

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Bellows

Bellows

Bellows can be used to protect moving machine parts, to compensate for movements, vibrations and misalignments as well as to circulate gases and liquids. The range of uses, from compensators to valve or pump bellows, is extremely high. Bellows are available in nearly every dimension (below 10 mm on request). Due to our machining-based production process, our bellows are available in short order and provide a good price-performance ratio even for single parts.

Your main advantages
  • Highly media- and temperature-resistant
  • Range of diameters available
  • Reliably prevents media contamination
  • Range of applications includes compensation, parts protection and liquids circulation

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CR Guide

Chemical Resistance

Guide

Still lost in spreadsheets?
Just a few clicks and you know which material is resistant to which process media.

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Do you have a question? Would you like an expert consultation on the sealing solution that best meets your requirements? Would you like a concrete offer? We look forward to meeting you.


Further information for you

Tool

New: The Chemical Resistance Guide

Still lost in spreadsheets? Just a few clicks and you know which material is resistant to which chemical. And soon, there will be another big surprise for you.

O-Ring

The O-Ring Configurator

The results of the calculation are evaluated with a color scheme. The target values are shown directly and need not be sought in tables - potential catalog rings, including their availability, are proposed as options.

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Downloads

Sales Sheets

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The premium universal material for the processing industry. A wide variety of applications that are impressive right down the line: Fluoroprene XP is the universal sealing material for steam sterilization, aggressive CIP-/SIP-media and high-fat concentrations.
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In food and pharmaceuticals industries production today, everything revolves around the issue of purity.
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The extractables study investigates the interactions between the pharmaceutical product and the elastomer.
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Freudenberg Xpress - quality in record time
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Sealing components made of elastomeric materials can have inherently high surface energies (tackiness) and a high coefficient of friction (COF).
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FKM (fluororubber) is a high-quality material that can be used in the entire processing industry.
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With its outstanding qualities in critical media, our EPDM materials are the first choice for a wide variety of O-rings, formed parts and diaphragm applications in the food, beverage, pharmaceutical and chemical industries.
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The Simmerring® is quite flexible, highly loadable and reliable in its operation.

Brochures

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Sealing solutions specially developed for the process industry in accordance with hygienic design and materials with industry-specific approvals.
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Demanding applications in the process industry require specific know-how and well-founded materials expertise. Apart from a broad product range, Freudenberg also offers specific materials with international approvals such as FDA, USP Class VI, NSF and regulation (EU) 1935/2004, as well as seals based on hygienic design.
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High performance materials for the extreme requirements in the Process Industry
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In food applications where guide bands come into direct contact with the medium, the material used must meet general regulatory requirements.
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Best sealing qualities under severe stresses – PTFE Shaft Seal for demanding appications in the Food Industry.

Certificates

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