Sanitary industry
Sealing of pipe connections, fittings and installations, on request to KTW, DVGW, W270, WRAS and others for hygienic standards.
Sealing rings
Stamped Sealing Rings
SIEGEL Dichtungen is your manufacturer of stamped sealing rings in a wide range of inner and outer diameters, thicknesses and colours. Whether as a rubber washer for sealing screws, for connection technology, sanitary applications or mechanical and plant engineering, we manufacture cost-efficiently from small to large series.
Materials
Various elastomers & TPE
Approvals
UL 94 · KTW
Manufacturing
Punched
Series
Small to large series
Your benefits
Why Stamped Sealing Rings from SIEGEL
Custom manufacturing
Seals made to measure, precisely matched to your requirements, from small to large series.
Wide range of materials
From NBR, CR and EPDM through cellular rubber and sponge rubber to silicone, FKM and graphite: the right solution for every application, also to various standards and approvals on request.
No tooling costs
Some sizes can be produced from existing punching tools without additional tooling costs.
Expert advice
We support you with material selection and design.
Short delivery times
Thanks to flexible production options and a flexible machine park.
ISO 9001 certified
SIEGEL Dichtungen stands for ISO-certified quality to ISO 9001.
Technical data
Product specifications
Specifications may vary depending on the material option. Contact us for further information or specific requirements.
Material
We process NR, SBR, NBR, CR, EPDM, H-NBR, PUR, foamed materials such as cellular rubber (closed-cell) and sponge rubber (open-pored), silicone and Viton, among others.
Temperature resistance
Resistant across a wide temperature range from -60 °C to > +200 °C, for use in different environments, countries and applications.
Diameters and tools
Can be produced in a wide range of inner and outer diameters, partly from existing punching tools or with low tooling costs to your specifications.
Standards and approvals
On request to UL 94 V0/V1/V2 and FMVSS 302, KTW-BWGL, EN 16421 (formerly W270), DVGW, FDA, BfR and EC 1935/2004 as well as ATEX. In the automotive sector also to common automotive manufacturer standards.
Fabric insert
On request with one or more fabric inserts to increase the stability and pressure resistance of the sealing rings.
Self-adhesive
On request self-adhesive on one side, with release paper or a punched pull tab for quick assembly.
Assembly
Quick and straightforward assembly on the principle of a washer.
Applications
Electrical industry, connection technology, automotive industry, mechanical and plant engineering, sanitary industry, household appliances and much more.
Your application
Special requirements for material or standard?
Tell us about your application, for example media, temperature ranges or standards. We recommend the material and the matching manufacturing process and provide samples in advance on request.
Materials & standards
Suitable materials & approvals
Stamped Sealing Rings are manufactured from the following materials and, on request, designed to meet the relevant standards and approvals. The linked pages provide details on properties, resistances and regulations.
Materials
Standards & approvals
For an overview of all tests, see Standards & approvals.
Process
Manufacturing & processes
More on manufacturing & tolerances
Custom diameters and materials
Whether as a rubber washer for sealing a screw, for versatile use in connection technology or in the sanitary industry: we supply and produce stamped sealing rings in a wide range of inner and outer diameters and material thicknesses.
Some can be produced from existing punching tools without additional tooling costs, from various elastomers and with approvals such as KTW and EN 16421 (formerly W270) for drinking water.
Punched sealing washers are an economical and reliable sealing solution for a wide variety of applications.
Applications
Industries & applications
Mechanical and plant engineering
Used in sealing systems, connections and electrical assemblies, providing reliable protection against dust, dirt and media, also as buffers.
Fastening and connection technology
Secure fixing and sealing of components in pipelines, plug connections, wall mountings, housings and closure mechanisms.
Building services
Sealing and insulation of sanitary installations, heating and air-conditioning systems, minimising energy losses and ensuring a reliable seal.
Drinking water
On request to KTW-BWGL (EPDM blue), EN 16421 (W270), WRAS and KIWA for drinking water applications.
Pump manufacturing
Seals and elastomer products for the efficiency, function and reliability of your pumps and systems.
Hydraulics and pneumatics
For the smooth operation of valves, cylinders, pistons, shafts and fittings.
Food and beverage industry
The highest hygiene standards, and our elastomer and plastic seals play an essential role in meeting them.
Medical technology
Precision, hygiene and reliability for highly sensitive, sometimes life-sustaining applications.
Product range
Related products
Cooperation
The right Stamped Sealing Rings for your application?
Tell us about your application, for example media, temperature ranges or standards. We recommend the material and the matching manufacturing process and provide samples in advance on request.