O-rings
Materials:
Elastomer abbreviation | Chemical name | Trade names | Hardness range IRHD Shore A | Operating temperature | |
ISO 1629
| ASTM D 1418
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| 30 to 90 depending on elastomer |
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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® |
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|
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 |
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| Algoflon®, Dyneon®, Fluon®, Halon®, Hostaflon®, Polyflon®, Teflon®, Thomaflon |
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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Approvals: If no longer current, please request new standard | Country/Area | Elastomers | |||||
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| NBR | EPDM | HNBR | VMQ | FKM | FFKM |
Regulation (EC) 1935/2004 Contact with food | Europe | NBR | EPDM peroxide |
| VMQ |
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Regulation EC 2023/2006 good manufacturing practice for materials that come into contact with food | Europe | NBR | EPDM peroxide |
| VMQ |
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FDA – Food and Drugs Administration 177.2600 | USA | NBR | EPDM peroxide | HNBR | VMQ | FKM | FFKM |
3-A Sanitary | USA |
| EPDM peroxide |
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BfR XXI Category 4 | Germany |
| EPDM peroxide |
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USP 87 | USA |
| EPDM peroxide |
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USP 88 | USA |
| EPDM peroxide |
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HYDROCHECK Belgaqua | Belgium |
| EPDM peroxide |
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KTW-EN 16421 (W270) Drinking water | Germany | NBR | EPDM peroxide |
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KTW-EN681 | Germany |
| EPDM peroxide |
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WRAS BS 6920 | England |
| EPDM peroxide |
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ÖNORM B 5014-1 | Austria |
| EPDM peroxide |
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CLP (ACS) | France | NBR |
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ACS Kalt- und Warmwasser | France |
| EPDM peroxide |
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DM 174 | Italy | NBR | EPDM peroxide |
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KIWA BRL-K17504 | Netherlands |
| EPDM peroxide |
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AS/NZS 4020:2018 | Australia/New Zealand |
| EPDM peroxide |
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SVGW | Switzerland |
| EPDM peroxide |
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NSF/ANSI/CAN61 | USA/Canada |
| EPDM peroxide |
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UL 778 | USA | NBR | EPDM peroxide |
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UL 157 | USA | NBR |
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NORSOK M-710 | International |
|
| HNBR |
| FKM | FFKM |
ISO 23936-2 | International |
|
| HNBR |
| FKM | FFKM |
EN549 – DVGW - Gas | Germany | NBR | EPDM peroxide | HNBR |
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ZP 5101 | Germany | NBR |
| HNBR |
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EN682 GBL | Europe | NBR |
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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