Introduction
Ethylene Propylene (EPDM) O-Rings with a 0.103-inch cross-section are widely used sealing components designed for reliable performance in vacuum systems, fluid handling equipment, and industrial machinery. EPDM elastomers are well known for their excellent resistance to heat, weathering, ozone, water, and many chemicals, making them suitable for demanding environments where long-term sealing stability is required.
These O-rings are commonly used in vacuum hardware, pumps, valves, and sealing interfaces where durability, flexibility, and chemical resistance are essential. The 0.103-inch cross-section corresponds to standard AS568 O-ring sizes frequently used in precision sealing applications.
Detailed Description
EPDM (Ethylene Propylene Diene Monomer) is a synthetic rubber widely recognized for its exceptional resistance to environmental degradation. Compared with many other elastomers, EPDM offers superior resistance to ozone, UV radiation, steam, and water, making it particularly suitable for outdoor and high-humidity environments.
O-rings manufactured from EPDM provide reliable sealing performance across a wide temperature range while maintaining flexibility and compression resilience. The 0.103-inch cross-section is a common standard dimension used in many industrial sealing systems, ensuring compatibility with standard grooves and sealing interfaces.
EPDM O-rings are especially effective in systems involving water, steam, glycol-based fluids, and certain mild chemicals. Their resistance to oxidation and environmental aging makes them ideal for long-term sealing applications in equipment that experiences frequent temperature fluctuations or exposure to outdoor conditions.
In vacuum systems and laboratory equipment, EPDM O-rings can provide dependable sealing performance for moderate vacuum levels. They are commonly used in vacuum pumps, KF centering rings, and vacuum connectors where elastomer seals are required.
These O-rings are typically manufactured through precision molding processes to ensure consistent dimensions, smooth surfaces, and uniform elasticity. High-quality EPDM compounds also offer excellent compression set resistance, allowing the O-rings to maintain sealing force over extended service periods.
It is important to note that EPDM O-rings are not recommended for use with petroleum-based oils, fuels, or hydrocarbon solvents, where other elastomers such as Viton® or NBR may be more suitable.
Applications
EPDM O-Rings with a 0.103-inch section are used in a wide range of industrial and vacuum sealing applications, including:
Vacuum systems and laboratory equipment
Vacuum pump seals and fittings
Water and steam sealing systems
HVAC and refrigeration equipment
Chemical processing equipment
Automotive cooling systems
General industrial sealing and gasket applications
Their resistance to weathering and moisture makes them especially suitable for environments exposed to water or outdoor conditions.
Technical Parameters
| Parameter | Typical Value / Range | Importance |
|---|---|---|
| Material | EPDM (Ethylene Propylene Diene Monomer) | Provides excellent chemical and weather resistance |
| Cross Section | 0.103 in (≈2.62 mm) | Standard AS568 sealing dimension |
| Hardness | 60 – 80 Shore A | Determines sealing flexibility and durability |
| Temperature Range | -40 °C to 150 °C | Suitable for many industrial environments |
| Chemical Resistance | Water, steam, glycol fluids | Ideal for fluid handling systems |
| Color | Black (standard) | Common industrial elastomer color |
Comparison with Related Materials
| Material | Key Advantage | Typical Application |
|---|---|---|
| EPDM | Excellent resistance to water, steam, and weathering | HVAC systems and water sealing |
| Viton® (FKM) | High resistance to oils and fuels | Chemical processing and fuel systems |
| Nitrile (NBR) | Good oil resistance and cost-effective | Hydraulic systems |
| Silicone (VMQ) | Wide temperature range and flexibility | Medical and food-grade sealing |
FAQ
| Question | Answer |
|---|---|
| What does the 0.103 section refer to? | It refers to the cross-sectional diameter of the O-ring, which is approximately 0.103 inches (2.62 mm). |
| Are EPDM O-rings suitable for vacuum systems? | Yes, they are suitable for moderate vacuum sealing applications commonly found in laboratory and industrial equipment. |
| What chemicals are EPDM O-rings resistant to? | EPDM offers excellent resistance to water, steam, glycols, and many mild chemicals. |
| Can EPDM O-rings handle high temperatures? | Yes, they typically operate in temperatures from -40 °C to about 150 °C. |
| Are EPDM O-rings compatible with oils and fuels? | No, EPDM is generally not recommended for petroleum-based oils or fuels. |
Packaging
Our Ethylene Propylene (EPDM) O-Rings (0.103 Section) are meticulously tagged and labeled externally to ensure efficient identification and maintain high standards of quality control. We take great care to prevent any potential damage during storage and transportation, ensuring the targets arrive in perfect condition.
Conclusion
Ethylene Propylene (EPDM) O-Rings with a 0.103-inch cross-section provide a reliable sealing solution for water, steam, vacuum, and industrial applications. Their excellent resistance to weathering, ozone, and temperature fluctuations ensures long-lasting performance in demanding environments.
With precise manufacturing, consistent material quality, and compatibility with standard sealing systems, EPDM O-rings are widely used across vacuum technology, HVAC systems, and industrial equipment.
For detailed specifications and a quotation, please contact us at sales@thinfilmmaterials.com.
Ordering Table
| Drawing | Reference | O-Ring Size | O-Ring Material | O-Ring OD | O-Ring ID | O-Ring Cross Section | O-Ring Color | Part Number |
| O-ring Seals, Ethylene Propylene (EPDM) | 102 | 5600-70 EPDM | 0.255 | 0.049 | 0.103 | Black | O-E102 |
| O-ring Seals, Ethylene Propylene (EPDM) | 103 | 5600-70 EPDM | 0.287 | 0.081 | 0.103 | Black | O-E103 |
| O-ring Seals, Ethylene Propylene (EPDM) | 104 | 5600-70 EPDM | 0.318 | 0.112 | 0.103 | Black | O-E104 |
| O-ring Seals, Ethylene Propylene (EPDM) | 105 | 5600-70 EPDM | 0.349 | 0.143 | 0.103 | Black | O-E105 |
| O-ring Seals, Ethylene Propylene (EPDM) | 106 | 5600-70 EPDM | 0.380 | 0.174 | 0.103 | Black | O-E106 |
| O-ring Seals, Ethylene Propylene (EPDM) | 107 | 5600-70 EPDM | 0.412 | 0.206 | 0.103 | Black | O-E107 |
| O-ring Seals, Ethylene Propylene (EPDM) | 108 | 5600-70 EPDM | 0.443 | 0.237 | 0.103 | Black | O-E108 |
| O-ring Seals, Ethylene Propylene (EPDM) | 109 | 5600-70 EPDM | 0.505 | 0.299 | 0.103 | Black | O-E109 |
| O-ring Seals, Ethylene Propylene (EPDM) | 110 | 5600-70 EPDM | 0.568 | 0.362 | 0.103 | Black | O-E110 |
| O-ring Seals, Ethylene Propylene (EPDM) | 111 | 5600-70 EPDM | 0.630 | 0.424 | 0.103 | Black | O-E111 |
| O-ring Seals, Ethylene Propylene (EPDM) | 112 | 5600-70 EPDM | 0.693 | 0.487 | 0.103 | Black | O-E112 |
| O-ring Seals, Ethylene Propylene (EPDM) | 113 | 5600-70 EPDM | 0.755 | 0.549 | 0.103 | Black | O-E113 |
| O-ring Seals, Ethylene Propylene (EPDM) | 114 | 5600-70 EPDM | 0.818 | 0.612 | 0.103 | Black | O-E114 |
| O-ring Seals, Ethylene Propylene (EPDM) | 115 | 5600-70 EPDM | 0.880 | 0.674 | 0.103 | Black | O-E115 |
| O-ring Seals, Ethylene Propylene (EPDM) | 116 | 5600-70 EPDM | 0.943 | 0.737 | 0.103 | Black | O-E116 |
| O-ring Seals, Ethylene Propylene (EPDM) | 117 | 5600-70 EPDM | 1.005 | 0.799 | 0.103 | Black | O-E117 |
| O-ring Seals, Ethylene Propylene (EPDM) | 118 | 5600-70 EPDM | 1.068 | 0.862 | 0.103 | Black | O-E118 |
| O-ring Seals, Ethylene Propylene (EPDM) | 119 | 5600-70 EPDM | 1.130 | 0.924 | 0.103 | Black | O-E119 |
| O-ring Seals, Ethylene Propylene (EPDM) | 120 | 5600-70 EPDM | 1.193 | 0.987 | 0.103 | Black | O-E120 |
| O-ring Seals, Ethylene Propylene (EPDM) | 121 | 5600-70 EPDM | 1.255 | 1.049 | 0.103 | Black | O-E121 |
| O-ring Seals, Ethylene Propylene (EPDM) | 122 | 5600-70 EPDM | 1.318 | 1.112 | 0.103 | Black | O-E122 |
| O-ring Seals, Ethylene Propylene (EPDM) | 123 | 5600-70 EPDM | 1.380 | 1.174 | 0.103 | Black | O-E123 |
| O-ring Seals, Ethylene Propylene (EPDM) | 124 | 5600-70 EPDM | 1.443 | 1.237 | 0.103 | Black | O-E124 |
| O-ring Seals, Ethylene Propylene (EPDM) | 125 | 5600-70 EPDM | 1.505 | 1.299 | 0.103 | Black | O-E125 |
| O-ring Seals, Ethylene Propylene (EPDM) | 126 | 5600-70 EPDM | 1.568 | 1.362 | 0.103 | Black | O-E126 |
| O-ring Seals, Ethylene Propylene (EPDM) | 127 | 5600-70 EPDM | 1.630 | 1.424 | 0.103 | Black | O-E127 |
| O-ring Seals, Ethylene Propylene (EPDM) | 128 | 5600-70 EPDM | 1.693 | 1.487 | 0.103 | Black | O-E128 |
| O-ring Seals, Ethylene Propylene (EPDM) | 129 | 5600-70 EPDM | 1.755 | 1.549 | 0.103 | Black | O-E129 |
| O-ring Seals, Ethylene Propylene (EPDM) | 130 | 5600-70 EPDM | 1.818 | 1.612 | 0.103 | Black | O-E130 |
| O-ring Seals, Ethylene Propylene (EPDM) | 131 | 5600-70 EPDM | 1.880 | 1.674 | 0.103 | Black | O-E131 |
| O-ring Seals, Ethylene Propylene (EPDM) | 132 | 5600-70 EPDM | 1.943 | 1.737 | 0.103 | Black | O-E132 |
| O-ring Seals, Ethylene Propylene (EPDM) | 133 | 5600-70 EPDM | 2.005 | 1.799 | 0.103 | Black | O-E133 |
| O-ring Seals, Ethylene Propylene (EPDM) | 134 | 5600-70 EPDM | 2.068 | 1.862 | 0.103 | Black | O-E134 |
| O-ring Seals, Ethylene Propylene (EPDM) | 135 | 5600-70 EPDM | 2.131 | 1.925 | 0.103 | Black | O-E135 |
| O-ring Seals, Ethylene Propylene (EPDM) | 136 | 5600-70 EPDM | 2.193 | 1.987 | 0.103 | Black | O-E136 |
| O-ring Seals, Ethylene Propylene (EPDM) | 137 | 5600-70 EPDM | 2.256 | 2.050 | 0.103 | Black | O-E137 |
| O-ring Seals, Ethylene Propylene (EPDM) | 138 | 5600-70 EPDM | 2.318 | 2.112 | 0.103 | Black | O-E138 |
| O-ring Seals, Ethylene Propylene (EPDM) | 139 | 5600-70 EPDM | 2.381 | 2.175 | 0.103 | Black | O-E139 |
| O-ring Seals, Ethylene Propylene (EPDM) | 140 | 5600-70 EPDM | 2.443 | 2.237 | 0.103 | Black | O-E140 |
| O-ring Seals, Ethylene Propylene (EPDM) | 141 | 5600-70 EPDM | 2.506 | 2.300 | 0.103 | Black | O-E141 |
| O-ring Seals, Ethylene Propylene (EPDM) | 142 | 5600-70 EPDM | 2.568 | 2.362 | 0.103 | Black | O-E142 |
| O-ring Seals, Ethylene Propylene (EPDM) | 143 | 5600-70 EPDM | 2.631 | 2.425 | 0.103 | Black | O-E143 |
| O-ring Seals, Ethylene Propylene (EPDM) | 144 | 5600-70 EPDM | 2.693 | 2.487 | 0.103 | Black | O-E144 |
| O-ring Seals, Ethylene Propylene (EPDM) | 145 | 5600-70 EPDM | 2.756 | 2.550 | 0.103 | Black | O-E145 |
| O-ring Seals, Ethylene Propylene (EPDM) | 146 | 5600-70 EPDM | 2.818 | 2.612 | 0.103 | Black | O-E146 |
| O-ring Seals, Ethylene Propylene (EPDM) | 147 | 5600-70 EPDM | 2.881 | 2.675 | 0.103 | Black | O-E147 |
| O-ring Seals, Ethylene Propylene (EPDM) | 148 | 5600-70 EPDM | 2.943 | 2.737 | 0.103 | Black | O-E148 |
| O-ring Seals, Ethylene Propylene (EPDM) | 149 | 5600-70 EPDM | 3.006 | 2.800 | 0.103 | Black | O-E149 |
| O-ring Seals, Ethylene Propylene (EPDM) | 150 | 5600-70 EPDM | 3.068 | 2.862 | 0.103 | Black | O-E150 |
| O-ring Seals, Ethylene Propylene (EPDM) | 151 | 5600-70 EPDM | 3.193 | 2.987 | 0.103 | Black | O-E151 |
| O-ring Seals, Ethylene Propylene (EPDM) | 152 | 5600-70 EPDM | 3.443 | 3.237 | 0.103 | Black | O-E152 |
| O-ring Seals, Ethylene Propylene (EPDM) | 153 | 5600-70 EPDM | 3.693 | 3.487 | 0.103 | Black | O-E153 |
| O-ring Seals, Ethylene Propylene (EPDM) | 154 | 5600-70 EPDM | 3.943 | 3.737 | 0.103 | Black | O-E154 |
| O-ring Seals, Ethylene Propylene (EPDM) | 155 | 5600-70 EPDM | 4.193 | 3.987 | 0.103 | Black | O-E155 |
| O-ring Seals, Ethylene Propylene (EPDM) | 156 | 5600-70 EPDM | 4.443 | 4.237 | 0.103 | Black | O-E156 |
| O-ring Seals, Ethylene Propylene (EPDM) | 157 | 5600-70 EPDM | 4.693 | 4.487 | 0.103 | Black | O-E157 |
| O-ring Seals, Ethylene Propylene (EPDM) | 158 | 5600-70 EPDM | 4.943 | 4.737 | 0.103 | Black | O-E158 |
| O-ring Seals, Ethylene Propylene (EPDM) | 159 | 5600-70 EPDM | 5.193 | 4.987 | 0.103 | Black | O-E159 |
| O-ring Seals, Ethylene Propylene (EPDM) | 160 | 5600-70 EPDM | 5.443 | 5.237 | 0.103 | Black | O-E160 |
| O-ring Seals, Ethylene Propylene (EPDM) | 161 | 5600-70 EPDM | 5.693 | 5.487 | 0.103 | Black | O-E161 |
| O-ring Seals, Ethylene Propylene (EPDM) | 162 | 5600-70 EPDM | 5.943 | 5.737 | 0.103 | Black | O-E162 |
| O-ring Seals, Ethylene Propylene (EPDM) | 163 | 5600-70 EPDM | 6.193 | 5.987 | 0.103 | Black | O-E163 |
| O-ring Seals, Ethylene Propylene (EPDM) | 164 | 5600-70 EPDM | 6.443 | 6.237 | 0.103 | Black | O-E164 |
| O-ring Seals, Ethylene Propylene (EPDM) | 165 | 5600-70 EPDM | 6.693 | 6.487 | 0.103 | Black | O-E165 |
| O-ring Seals, Ethylene Propylene (EPDM) | 166 | 5600-70 EPDM | 6.943 | 6.737 | 0.103 | Black | O-E166 |
| O-ring Seals, Ethylene Propylene (EPDM) | 167 | 5600-70 EPDM | 7.193 | 6.987 | 0.103 | Black | O-E167 |
| O-ring Seals, Ethylene Propylene (EPDM) | 168 | 5600-70 EPDM | 7.443 | 7.237 | 0.103 | Black | O-E168 |
| O-ring Seals, Ethylene Propylene (EPDM) | 169 | 5600-70 EPDM | 7.693 | 7.487 | 0.103 | Black | O-E169 |
| O-ring Seals, Ethylene Propylene (EPDM) | 170 | 5600-70 EPDM | 7.943 | 7.737 | 0.103 | Black | O-E170 |
| O-ring Seals, Ethylene Propylene (EPDM) | 171 | 5600-70 EPDM | 8.193 | 7.987 | 0.103 | Black | O-E171 |
| O-ring Seals, Ethylene Propylene (EPDM) | 172 | 5600-70 EPDM | 8.443 | 8.237 | 0.103 | Black | O-E172 |
| O-ring Seals, Ethylene Propylene (EPDM) | 173 | 5600-70 EPDM | 8.693 | 8.487 | 0.103 | Black | O-E173 |
| O-ring Seals, Ethylene Propylene (EPDM) | 174 | 5600-70 EPDM | 8.943 | 8.737 | 0.103 | Black | O-E174 |
| O-ring Seals, Ethylene Propylene (EPDM) | 175 | 5600-70 EPDM | 9.193 | 8.987 | 0.103 | Black | O-E175 |
| O-ring Seals, Ethylene Propylene (EPDM) | 176 | 5600-70 EPDM | 9.443 | 9.237 | 0.103 | Black | O-E176 |
| O-ring Seals, Ethylene Propylene (EPDM) | 177 | 5600-70 EPDM | 9.693 | 9.487 | 0.103 | Black | O-E177 |
| O-ring Seals, Ethylene Propylene (EPDM) | 178 | 5600-70 EPDM | 9.943 | 9.737 | 0.103 | Black | O-E178 |
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