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Special Sealing Products
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Special Sealing Products

Special Sealing Products are customized solutions with special geometries or application requirements. As they are always individually designed and manufactured, you require a sealing solutions expert with excellent material, product and application know-how. Freudenberg Sealing Technologies (FST) is the top innovator in the field, providing you with the maximum technical competence in consulting, engineering and manufacturing.

Overview of Our Special Sealing Product Solutions

Forseal

Forseal

Forseal seals from Freudenberg Sealing Technologies are groove-ring-like seals for pistons and rods that can be pressurized on one side.

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Precision Molded Parts

Precision Molded Parts

Freudenberg Sealing Technologies provides its customers with precision-molded components that meet stringent requirements for effectiveness and reliability.

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Butterfly Valve Seals

Butterfly Valve Seals

Hygienic and functionally secure even after countless switching operations – butterfly valve seals from Freudenberg Sealing Technologies guarantee a reliable and long-lasting sealing function in butterfly or disk valves.

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Caps

Caps

Sealing caps from Freudenberg Sealing Technologies provide the secure sealing of round borings in housings and are available in a great many different versions.

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Stuffing Box Packings

Stuffing Box Packings

The ideal stuffing box packing for every kind of static or dynamic application – that is the goal of Freudenberg Sealing Technologies product developers. To meet this requirement, the company’s standard portfolio already includes a wide variety of different materials and designs.

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Encoder

Encoder

Together with an appropriate sensor, Multipole Encoders provide for the precise measurement of speed and rotation angle for several applications in the automotive and general industry.

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Plug & Seal

Plug & Seal

Freudenberg Sealing Technologies developed Plug & Seal connectors to establish a tight connection between two housings, pipes and assemblies.

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Boots

Boots

Single- and multiple-convolution boots are protective seals for socket joints, ball joints and articulated shafts. Freudenberg Sealing Technologies offers a wide variety of boots and dust covers for a broad range of applications in the auto industry as well as general industry.

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Diaphragms

Diaphragms

Diaphragms may be used in an array of applications, including pumps, actuators, hydro-accumulators, valves, and regulators. Freudenberg has the expert engineering and materials expertise to provide the high performance diaphragms your equipment demands, in standard or custom-designed sizes and formats for any application.

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DIAvent

DIAvent®

The DIAvent® and DIAvent® HighFlow pressure equalization elements are not only extremely robust against mechanical stress, but also immediately closes the diaphragm that is opened in the event of emergency degassing.

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Discover the new Technical Manual

Become a sealing expert! Our new edition offers an in-depth guide to materials and product expertise, offering a holistic view of sealing technology.

Read now!
Freudenberg Sealing Technologies - Technical Manual
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Something missing?

The Product Catalog provides you with an overview of Freudenberg Sealing Technologies’ entire sealing portfolio. Whether you are looking for a Freudenberg premium seal or a Dichtomatik solution fulfilling industrial standard requirements – you’ll find the right seal here.

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The Most Important Services Related to Our Products

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Product Treatment

Surface coatings for increased functionality under specific conditions of use.

Send product treatment request
Elastomer Materials

Material Data Sheets

Material data sheets with detailed information on physical material properties.

Material Data Sheets

Press Releases on Special Seals

Seals for Cobots

14.11.2023

Flexible, wear-resistant and minimal frictional losses

Freudenberg Sealing Technologies develops sealing solution for demanding cobot applications.

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Freudenberg Sealing Technologies’ speaker surrounds use Dispersed Fiber Technology™ for superior performance, durability.

14.06.2023

The Sound of Premium Materials

Freudenberg Sealing Technologies’ speaker surrounds use Dispersed Fiber Technology™ for superior performance, durability.

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photo of electrolyzer stack

29.06.2022

Sealing Expertise for Green Hydrogen

Freudenberg Sealing Technologies produces electrolyzer sealing solutions by applying fuel cell knowledge

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Further Product Categories

Three different static seals

Static Seals

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Three dynamic seals

Dynamic Seals

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Three different accumulators

Accumulators

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