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Description Shore 70 EPDM AS568 O rings
Shore 70 EPDM AS568 O rings
EPDM O-rings are used on many components in automobile engines. Here are some common automotive engine accessories where EPDM O-ring seals may be needed.
1. water pump
The water pump is a key component in the engine cooling system, used to circulate coolant to maintain normal engine operating temperature. EPDM O-rings are often used at the connections of water pumps to ensure tightness and prevent coolant leakage.
2. oil filter
Engine oil filters filter impurities and contaminants in engine lubricating oil. EPDM O-rings are usually used at the installation port of oil filters to ensure the sealing of the connection and prevent oil leakage.
3. fuel nozzle
The fuel nozzle is an important part of the engine fuel system and is used to inject fuel into the engine combustion chamber. EPDM O-rings are often used at the connection of fuel nozzles to ensure the sealing between the nozzle and the fuel system and prevent fuel leakage.
4. intake manifold
The intake manifold introduces air into the engine combustion chamber. EPDM O-rings can be used at the connection between the intake manifold and the engine block to ensure tightness and prevent air leakage.
5. timing chain cover
Timing chain covers are used to cover the engine timing chain and gears, protecting and lubricating their movement. EPDM O-rings are often used in the installation port of the timing chain cover to ensure the sealing of the connection and prevent oil leakage.
| Technical Data Sheet | |||
| Compound: EP70 – EPDM (Ethylene Propylene Diene Monomer) | |||
| Colour: Black | |||
| Complies with: ASTM D2000 M2BA710 A14 B13 F19 | Although the technical details and recommendations made correspond to the best of our knowledge and experience, all the above information must, in every case, be taken as merely indicative and subject to confirmation after long-term practical application; for this reason, anyone who intends to use Linde Polymer products must ensure beforehand that it is suitable for the envisaged application. In every case, the user alone is fully responsible for any consequences deriving from the use of the product. |
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| Required | Tested | ||
| Mechanical Properties | |||
| Shore Hardness (Sh. A): | 70 | 71 | |
| Tensile Strength (MPa): | 10 | 14 | |
| Elongation at Break (%): | 250 | 385 | |
| Specific Gravity: | n/a | 1.19 | |
| Thermal Properties | |||
| Operating Temperature Range (°C): | n/a | - 45to +145 | |
| Compression Set Test @ 70°C for 22 Hours (%): | 25 | 13 | |
| Heat Resistance Test @ 100°C X 70 Hours | |||
| Hardness Change Points: | ± 15 | +3 | |
| Tensile Strength Change (%): | ± 30 | +1 | |
| Elongation Change (%): | - 50 | -9 | |
| Low Temperature Brittleness Test @ -55°C X 3 Min | Pass | Not Brittle | |
| Temperature Range Up to 150°C (Intermittant) Down to -45°C Recommended temperature range -30°C to +125°C |
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| Chemical resistance Hot water and steam up to 149°C with special compounds up to 260°C Glycol-based brake fluids (Dot 3 & 4) and silicone-based brake fluids (Dot 5) up to 149°C Many organic and inorganic acids Cleaning agents, sodium and potassium alkalis Phosphate-ester-based hydraulic fluids (HFD-R) Silicone oil and grease Many polar solvents (alcohols, ketones, esters) Ozone, aging, and weather resistant Not compatible with: Mineral oil products (oils, greases, and fuels) |
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| Model | ID (Inches) | Cross Section (Inches) | ID (Actual) | OD (Inches) | Cross Section (Actual) |
|---|---|---|---|---|---|
| AS568-001 | 1/32 | 1/16 | .029" | 3/32 | .070" |
| AS568-002 | 3/64 | 1/16 | .042 | 9/64 | .070" |
| AS568-003 | 1/16 | 1/16 | .056" | 3/16 | .070" |
| AS568-004 | 5/64 | 1/16 | .070" | 13/64 | .070" |
| AS568-005 | 3/32 | 1/16 | .101" | 7/32 | .070" |
| AS568-006 | 1/8 | 1/16 | .114" | 1/4 | .070" |
| AS568-007 | 5/32 | 1/16 | .145" | 9/32 | .070" |
| AS568-008 | 3/16 | 1/16 | .176 | 5/16 | .070" |
