Skip to main content

O-rings

Materials:

Elastomer abbreviation

Chemical name

Trade names

Hardness range IRHD

Shore A

Operating temperature

ISO 1629

 

ASTM D 1418

 

 

 

30 to 90 depending on elastomer

 

NBR

NBR

Acrylon Butadiene rubber

Buna-N®, Perbunan®, Hycar®, Krynac®, Europrene®

 

-50 °C to +120 °C

HNBR

HNBR

Highly Saturated Nitrile rubber

Therban®, Zetpol®

 

-55 °C to +150 °C

FPM

FKM

Fluorocarbon rubber

Viton®, Fluorel®, Technoflon®, Dai-El®

 

-40 °C to +270 °C

FFPM

FFKM

Perfluoroelastomer

Kalrez®

 

-46 °C to + 320 °C

FEPM

TFE/P

Tetrafluoroethylene propylene rubber

Aflas®, Viton Extreme®

 

-10 °C to +230 °C

FVMQ

FVMQ

Fluorosilicone rubber

FSE®, Silastic®, Sylon®

 

-55 °C to +180 °C

EPDM

EPDM

Ethylene propylene diene rubber

Buna-AP®, Dutral®, Keltan®, Nordel®

 

-50 °C to + 160 °C

VMQ

VMQ

Silicone rubber

Silopren®, Silastic®, SE®, Bensil®, Silicone®, Elastosil®

 

-60 °C to +300 °C

ACM

ACM

Polyacrylate rubber

Europrene AR®, Cyanacryl®, HyTemp®

 

-40 °C to +175 °C

AEM

AEM

Ethylene acrylate rubber

Vamac®

 

-40 °C to +175 °C

PMVQ

PMVQ

Phenyl-silicone rubber

Elastosil®

 

 

CR

CR

Chloroprene rubber

Baypren®, Neopren®

 

-50 °C to +100 °C

The application temperatures depend on the rubber compound (compound formulation).

Plastic abbreviation

Chemical name

Trade names

Shore D hardness range

Operating temperature

PTFE

PTFE

Polytetrafluorethylen

Shore D hardness range

 

-200 °C to +260 °C

 

 

 

Algoflon®, Dyneon®, Fluon®, Halon®, Hostaflon®, Polyflon®, Teflon®, Thomaflon

 

 

 

Approvals depending on elastomer type untreated:

 

Food/Pharma

Drinking water

Crude oil, natural gas (petrochemicals)

Gas

Approvals: If no longer current, please request new standard

Country/Area

Elastomers

 

 

NBR

EPDM

HNBR

VMQ

FKM

FFKM

Regulation (EC) 1935/2004 Contact with food

Europe

NBR

EPDM peroxide

 

VMQ

 

 

Regulation EC 2023/2006 good manufacturing practice for materials that come into contact with food

Europe

NBR

EPDM peroxide

 

 VMQ

 

 

FDA – Food and Drugs Administration 177.2600

USA

NBR

EPDM peroxide

HNBR

VMQ

FKM

FFKM

3-A Sanitary

USA

 

EPDM peroxide

 

 

 

 

BfR XXI Category 4

Germany

 

EPDM peroxide

 

 

 

 

USP 87

USA

 

EPDM peroxide

 

 

 

 

USP 88

USA

 

EPDM peroxide

 

 

 

 

HYDROCHECK Belgaqua

Belgium

 

EPDM peroxide

 

 

 

 

KTW-EN 16421 (W270) Drinking water

Germany

NBR

EPDM peroxide

 

 

 

 

KTW-EN681

Germany

 

EPDM peroxide

 

 

 

 

WRAS BS 6920

England

 

EPDM peroxide

 

 

 

 

ÖNORM B 5014-1

Austria

 

EPDM peroxide

 

 

 

 

CLP (ACS)

France

NBR

 

 

 

 

 

ACS Kalt- und Warmwasser

France

 

EPDM peroxide

 

 

 

 

DM 174

Italy

NBR

EPDM peroxide

 

 

 

 

KIWA BRL-K17504

Netherlands

 

EPDM peroxide

 

 

 

 

AS/NZS 4020:2018

Australia/New Zealand

 

EPDM peroxide

 

 

 

 

SVGW

Switzerland

 

EPDM peroxide

 

 

 

 

NSF/ANSI/CAN61

USA/Canada

 

EPDM peroxide

 

 

 

 

UL 778

USA

NBR

EPDM peroxide

 

 

 

 

UL 157

USA

NBR

 

 

 

 

 

NORSOK M-710

International

 

 

HNBR

 

FKM

FFKM

ISO 23936-2

International

 

 

HNBR

 

FKM

FFKM

EN549 – DVGW - Gas

Germany

NBR

EPDM peroxide

HNBR

 

 

 

ZP 5101

Germany

NBR

 

HNBR

 

 

 

EN682 GBL

Europe

NBR

 

 

 

 

 

 

Treatments:

Cleaning overview:

  • Wet cleaning
  • Plasma cleaning
  • Lab conformity according to VW PV 3.10.7
  • Lab conformity according to Festo FN 942010-2
  • Lab conformity according to Dürr QZ 24
  • Lab conformity according to VDMA 24364-A1/B2-L
  • Oil-free, grease-free, without contamination in accordance with the requirements of EIGA 33/18

 

Testing of LABS conformity according to

  • VW PV 3.10.7
  • Festo FN 942010-2
  • Dürr QZ 24
  • VDMA 24364-A1/B2-L

 

Coating overview:

  • PTFE
  • Silicone resin
  • Halogen treatment (iodine) PFAS-free

Halogen treatment (fluorine) process in plasma

Depending on size and material, all O-rings are also available in FEP/PFA and PTFE-coated versions.

Special sizes:

  • From inside diameter 200 mm to infinity, unlimited inside diameter
  • Cord-thicknesses: From 2.62 mm to 60.00 mm
  • Materials: NBR, HNBR, EPDM, CR, FKM, FFKM, FEPM, VMQ.
  • Tolerances: According to ISO 3601-1 Class B tolerance for industrial applications and Class A tolerance for aerospace applications.
  • Surfaces: According to ISO 3601-3 grade characteristics N and S.
  • Approvals: AED (NORSOK M710), FDA, USP, 3A sanitary.
  • - Colours (depending on elastomer): Black, brown, blue, red, green
  • 100 % error control for a zero-defect product