OR-EPDM70-278-77x6-99
O-ring 278.77×6.99 EPDM 70 Shore A
This EPDM O-ring is the correct choice for potable water, steam, brake fluids and all applications outside mineral oils.
- Product code
- OR-EPDM70-278-77x6-99
- Dimensions
- 278.77 × 6.99 mm
- Material
- EPDM · 70 Sh A
excl. VAT
From €8.96
€11.02 incl. VAT
The minimum order is €5.00 excl. VAT. For smaller orders you pay the difference as a small-order fee — add more pieces to avoid it.
Available to order — approx. 5 days
Certifications
Add 9 more pieces — from 10 pcs the price is €8.06 per piece, excl. VAT.
Need a price for a larger volume?
EPDM O-ring 278.77 × 6.99 mm (inner diameter 278.77 mm, cross-section 6.99 mm). Outer diameter 292.75 mm. Hardness 70 Sh A. Temperature range -40 °C to 130 °C. Standard ISO3601-278.77x6.99. Certifications: WRAS, KTW.
- Inner diameter (ID)
- 278.77 mm
- Cross-section (CS)
- 6.99 mm
- Outer diameter (OD)
- 292.75 mm
- Size
- 278.77x6.99
- Material
- EPDM
- Hardness
- 70 Sh A
- Color
- black
- Temperature range
- -40 °C to 130 °C
- Standard code
- ISO3601-278.77x6.99
- ISO 3601 size
- 278.77x6.99
- Product code
- OR-EPDM70-278-77x6-99
- Country of origin
- Germany
- Availability
- Available to order
Technical specifications
| Product data | |
|---|---|
| Material | EPDM |
| Hardness (Shore A) | 70 Sh A |
| Color | black |
| Certifications | WRAS, KTW |
| Indicative values for EPDM | |
| Temperature range | -40 °C to 130 °C |
| Tensile strength | 12 MPa |
| Ultimate elongation | 350 % |
| Compression set | 20 % |
| Density | 1.15 g/cm³ |
These values apply to the EPDM material family as a whole, not to this specific size and hardness. Always verify suitability for your specific application before use.
Cross-standard size references
- Standard code
- ISO3601-278.77x6.99
- ISO 3601
- 278.77x6.99
- DIN 3771
- 278.77x6.99
Material properties
EPDM is an ethylene propylene diene rubber with excellent resistance to water, steam, polar solvents, glycol-based brake fluids, ester oils, ozone, UV radiation and weathering. Operating temperature range is -40 °C to +130 °C (sulfur-cured), peroxide-cured grade up to +150 °C and for steam. It is not resistant to mineral oils, fuels and most hydrocarbon oils. Available grades meet WRAS, KTW, DVGW, NSF 61 potable water approvals and EPDM-FDA for food contact.
- Material
- EPDM
- Chemical name
- Ethylene Propylene Diene Monomer
- Also known as
- EPM, ethylene-propylene
- Trade names
- Arlanxeo Keltan, Dow Nordel, Lion Elastomers Royalene
Suitable for various industries
EPDM O-rings are used in potable water systems, steam lines, HVAC installations, brake systems (DOT 3/4/5.1), solar assemblies, roofing applications and outdoor enclosures. Typical applications: water fittings, heat exchangers, automotive brake lines, pharmaceutical CIP/SIP (peroxide-cured).
Application notes
The only choice for potable water and glycol-based brake fluids (DOT). Not suitable for mineral oils or fuels — substituting NBR causes immediate failure. For steam use peroxide-cured grade.
Advantages
- Resistant to potable water and steam (peroxide-cured grade)
- Compatible with glycol-based brake fluid
- Excellent ozone, UV and weathering resistance
- Operating range -40 °C to +130 °C
- Available grades with WRAS, KTW, NSF 61 for drinking water
Price tiers
| Quantity | per piece |
|---|---|
| from 1 pc | €8.96 |
| from 10 pcs −10% | €8.06 |
| from 100 pcs −25% | €6.72 |
| from 1,000 pcs −35% | €5.82 |
Prices exclude VAT. The volume discount is applied automatically in the cart.
Documentation
Related products
Equivalents, alternative materials, and cross-references.
O-ring 278.77×6.99 NBR 70 Shore A
- Dimensions
- 278.77 × 6.99 mm · OD 292.75 mm
- Material
- NBR · 70 ShA
Product code OR-NBR70-278-77x6-99
€3.57excl. VAT
O-ring 278.77×6.99 FKM 80 Shore A
- Dimensions
- 278.77 × 6.99 mm · OD 292.75 mm
- Material
- FKM · 80 ShA
Product code OR-FKM80-278-77x6-99
€20.70excl. VAT