The EPDM 70 O-Ring, featuring a 3.5mm cross-section (CS) and a 22mm inner diameter (ID), is a premium sealing component engineered for durability and resistance in demanding environments. Made from EPDM (Ethylene Propylene Diene Monomer) rubber with a 70 Shore A hardness rating, this O-ring offers exceptional resistance to weathering, heat, steam, water, and a range of chemicals. It is ideal for applications exposed to outdoor conditions, high temperatures, or fluid systems involving water and steam.

Material Properties:

• Material: EPDM (Ethylene Propylene Diene Monomer)
• Hardness: 70 Shore A
• Temperature Range: -45°C to +150°C (-49°F to +302°F)
• Resistance: Outstanding resistance to water, steam, ozone, UV rays, weathering, and certain chemicals such as weak acids and alkalis.
• Aging Resistance: Long-lasting performance in both indoor and outdoor applications due to superior resistance to environmental degradation.

Applications: This EPDM 70 O-Ring is designed for a broad range of sealing applications, including:

• Plumbing and water systems: Provides a durable seal for applications like faucets, valves, and fittings where resistance to water and steam is critical.
• Outdoor equipment: Ideal for outdoor sealing applications such as electrical enclosures and irrigation systems due to its resistance to ozone and UV exposure.
• Automotive applications: Commonly used in cooling systems, brake systems, and other automotive applications involving water, glycol, or brake fluid.
• HVAC systems: Perfect for seals in heating, ventilation, and air conditioning systems, where EPDM’s resistance to high temperatures and steam ensures long-term reliability.

Key Features:

• Superior water and steam resistance: Delivers reliable sealing performance in applications where exposure to water and steam is common, such as plumbing and HVAC systems.
• Wide temperature range: With its high-temperature tolerance, this O-ring maintains its sealing performance in extreme heat or cold.
• Exceptional weather resistance: EPDM is highly resistant to weathering, ozone, and UV exposure, making it ideal for outdoor applications.
• Chemical compatibility: Provides good resistance to weak acids, alkalis, and polar fluids like alcohols and glycol-based fluids, making it suitable for use in chemical processing and automotive applications.

Dimensions:

• Cross-Section (CS): 3.5mm
• Inner Diameter (ID): 22mm
• Outer Diameter (OD): 29mm

Industry Compliance:

• ISO 3601: This O-ring is manufactured to international standards for O-ring dimensions and materials, ensuring reliability and consistency across a wide range of applications.
• NSF/ANSI 61 Compliance: Suitable for potable water applications due to EPDM’s water resistance and safe material composition.

Advantages of EPDM Material:

• Resistant to environmental exposure: EPDM’s superior resistance to ozone and UV radiation makes it an excellent choice for outdoor applications where prolonged exposure to the elements is common.
• High-temperature performance: Performs well in applications where extreme temperatures and heat exposure are concerns, making it ideal for automotive and HVAC systems.
• Non-reactive to polar fluids: EPDM offers excellent resistance to fluids like glycol, alcohols, and water-based solutions, giving it a wide range of industrial applications.

Limitations:

• Not suitable for petroleum-based fluids: EPDM is not recommended for use with oils, fuels, or other petroleum-based products. For such applications, Buna-N or Viton O-rings are more appropriate.

The EPDM 70 O-Ring 3.5mm CS x 22mm ID is a reliable and durable sealing solution for industries that require excellent resistance to water, steam, and environmental conditions. Its versatility across plumbing, automotive, and outdoor applications makes it an essential component for reliable sealing performance in harsh and challenging environments. With a wide temperature range and chemical compatibility, it is a go-to solution for both indoor and outdoor use, ensuring long-term performance and durability.