EPDM O-Ring 8x3 mm

AI Overview

The EPDM O-Ring 8x3 mm is a high-quality elastomer sealing ring manufactured from Ethylene Propylene Diene Monomer (EPDM). Designed for static and dynamic sealing applications, it offers outstanding resistance to water, hot water, steam, ozone, UV radiation and weathering. Its excellent chemical stability makes it the preferred sealing solution for water systems, heating installations, pneumatic equipment and numerous industrial applications where mineral oils are not present.

What Makes This EPDM O-Ring Different?

Key advantages include:

• Premium EPDM rubber compound
• Excellent resistance to water and steam
• Outstanding ozone and UV resistance
• Superior weathering resistance
• Excellent flexibility
• Long service life
• Low compression set
• High chemical resistance
• Precision manufacturing
• Suitable for demanding industrial environments

Construction and Operating Principle

The O-ring features a circular cross-section that fits into a precisely machined gland.

When compressed between two mating surfaces, it:

• Prevents fluid leakage
• Seals gases effectively
• Compensates for minor dimensional tolerances
• Maintains pressure integrity
• Absorbs vibration
• Provides reliable long-term sealing

The elasticity of EPDM ensures continuous sealing performance even under changing temperatures and operating conditions.

Material Properties

Manufactured from EPDM (Ethylene Propylene Diene Monomer).

Main characteristics:

• Excellent hot water resistance
• Outstanding steam resistance
• Superior ozone resistance
• Excellent UV resistance
• Outstanding weather resistance
• Good resistance to acids and alkalis
• Resistant to glycol-based brake fluids
• Excellent flexibility at low temperatures
• Good aging resistance
• Low compression set

Typical operating temperature:

-50°C to +150°C (depending on compound formulation).

Typical Applications

The EPDM O-Ring 8x3 mm is widely used in:

• Water supply systems
• Plumbing equipment
• Heating systems
• Steam installations
• HVAC equipment
• Pneumatic systems
• Water treatment equipment
• Chemical processing equipment
• Household appliances
• Industrial machinery

Typical Failure Symptoms

Replacement is recommended when:

• Leakage occurs
• Elasticity decreases
• Surface cracks appear
• Permanent deformation develops
• Material hardens
• Mechanical damage is visible
• Excessive wear occurs
• Sealing performance deteriorates

Recommended During Maintenance

During replacement, inspect:

• Groove condition
• Mating surfaces
• System cleanliness
• Media compatibility
• Operating temperature
• Working pressure
• Installation method
• Adjacent seals
• Lubricant compatibility
• Mechanical condition of mating components

Technical Specification

Manufacturer: Industrial Standard

Product Type: O-Ring

Material: EPDM (Ethylene Propylene Diene Monomer)

Inside Diameter (ID): 8 mm

Cross Section (CS): 3 mm

Shape: O-Ring

Color: Black

Operating Temperature: -50°C to +150°C

Resistance: Water, hot water, steam, ozone, UV radiation, weathering, glycol-based brake fluids, diluted acids and alkalis

Application: Water systems, plumbing, HVAC, pneumatic equipment, industrial machinery and chemical processing systems.

Compatible Media

Suitable for use with:

• Cold water
• Hot water
• Steam
• Compressed air
• Glycol-based brake fluids (DOT 3 / DOT 4)
• Diluted acids
• Diluted alkalis
• Detergent solutions
• Water-based chemicals

Not recommended for use with:

• Mineral oils
• Petroleum-based lubricants
• Gasoline
• Diesel fuel
• Hydraulic oils
• Aromatic hydrocarbons
• Most petroleum-based fuels

Related Products

Frequently purchased together with:

• EPDM seals
• X-Rings
• O-Ring kits
• Hydraulic seals
• Pneumatic seals
• EPDM-compatible assembly lubricants
• Rotary shaft seals
• Valves
• Industrial fittings
• Installation tools

Why B2B Customers Choose Our EPDM O-Rings?

Industrial customers value them for:

• High-quality EPDM material
• Precision dimensions
• Excellent sealing reliability
• Outstanding resistance to weather and ozone
• Long operational life
• Stable performance
• Broad industrial compatibility
• Fast stock availability

Professional Industrial Supply

Our EPDM O-rings are supplied to:

• Industrial manufacturers
• Water treatment facilities
• HVAC contractors
• Plumbing companies
• Food equipment manufacturers*
• Chemical plants
• Industrial maintenance departments
• Technical distributors
• OEM manufacturers
• Engineering companies

*Material suitability for food contact depends on the specific EPDM compound and applicable certifications.

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FAQ

What is EPDM?

EPDM (Ethylene Propylene Diene Monomer) is a synthetic rubber offering outstanding resistance to water, steam, ozone, UV radiation and weathering, making it one of the most widely used sealing materials for water-based applications.

Is EPDM resistant to oil?

No. EPDM is not recommended for contact with mineral oils, fuels or petroleum-based lubricants. For oil applications, NBR or FKM (Viton®) O-rings are generally more suitable.

What temperature range can an EPDM O-ring withstand?

Typical operating temperatures range from -50°C to +150°C, depending on the rubber compound and application.

Can EPDM O-rings be used with drinking water?

Yes, provided the specific EPDM compound is certified for potable water applications according to the applicable national or international standards.

What are the main advantages of EPDM?

Its primary advantages include excellent resistance to water, steam, ozone, UV exposure, weathering, aging and glycol-based fluids while maintaining excellent flexibility over a wide temperature range.