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EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
Specifications
Model Number :
Customized
Packaging Details :
PE inside , Carton Outside
MOQ :
100 USD
Delivery Time :
7-45 work days
Size :
Any sizes are acceptable
Hardness :
30 ~ 90 shore
Certification :
FDA,ROHS,ISO9001,TS16949
Payment Terms :
L/C,L/C,Paypal
Color :
BLACK , GREEN , YELLOW , PURPLE
Temprature Range :
-35 ~ 140 ℃
Brand Name :
ORK
Place of Origin :
Guangdong,China
Price :
0.01 ~ 2 USD/PCS
Standard :
AS568 bs
Supply Ability :
30000000 PCS / Month
Material :
EPDM
Description
EPDM Rubber O-Ring — Ozone & Steam Resistant Sealing Solution

Our EPDM rubber O-rings are precision-molded sealing components manufactured from high-quality ethylene propylene diene monomer (EPDM) rubber. Designed for demanding sealing applications, these O-rings deliver exceptional resistance to ozone, UV radiation, and weather aging, making them ideal for long-term outdoor service. They perform reliably in hot water and steam environments and offer good tolerance to dilute acids and alkalis. With low compression set and stable elasticity, they provide consistent, leak-proof sealing in water valves, HVAC systems, and a wide range of industrial equipment.
In addition to EPDM, we supply O-rings in NBR, Silicone, FKM, and HNBR to meet diverse working condition requirements. Standard AS568 sizes are available from stock, and custom dimensions, hardness, and colors are accepted. All products are RoHS compliant and suitable for sanitary and potable water sealing applications.

Key Features & Benefits
  • Premium EPDM rubber compound with excellent resistance to ozone, UV radiation, and weather aging
  • Outstanding hot water and steam resistance — stable performance in humid environments
  • Good tolerance to dilute acids, alkalis, and polar chemical media
  • Low compression set ensures reliable leak-proof sealing after long-term compression
  • High elasticity and flexibility for easy installation in standard AS568 grooves
  • Multiple alternative rubber materials available: NBR, Silicone, FKM, and HNBR for different working conditions
  • Standard sizes in stock; custom dimensions, hardness, and color accepted
  • RoHS compliant — suitable for sanitary and drinking water applications
Product Specifications
MaterialEPDM (Ethylene Propylene Diene Monomer). Alternative materials: NBR, Silicone, FKM, HNBR
StandardAS568 standard sizes available; custom sizes supported
HardnessCommonly 40 Shore A to 90 Shore A; customizable
ColorBlack as standard; custom colors available upon request
Temperature Range-50°C to +150°C
Key PropertiesOzone resistant, UV resistant, weather aging resistant, steam & hot water resistant, resistant to dilute acids and alkalis
ApplicationWater treatment, HVAC, automotive cooling systems, plumbing, sanitary equipment, outdoor machinery, pumps and valves
PackingStandard export packing or customized packing
MOQSmall orders acceptable for stock items; bulk orders for custom specifications
Material Performance Data

The following tables present the original properties, heat resistance, compression set, ozone resistance, water resistance, and low-temperature brittleness test results for our standard 70A EPDM O-ring compound.

Cure Schedule
ProcessConditions
Press Cure — Sheet5 min at 170°C
Press Cure — Button10 min at 170°C
Post Cure — Sheet1 hour at 125°C
Post Cure — Button1 hour at 125°C
Original Properties
PropertySpecificationTest Result
Hardness, Shore A70° ± 570
Tensile Strength, MPa, min1414.9
Ultimate Elongation, %, min300327
Specific Gravity (g/cm³)—1.15
Heat Resistance — 70 h at 100°C
PropertySpecificationTest Result
Change in Hardness, points102
Change in Tensile Strength, %-25-4.1
Ultimate Elongation, max %-25-3.4
Compression Set — 22 h at 70°C
PropertySpecificationTest Result
Compression Set, max258
Resistance to Ozone — Exposure Method B
PropertySpecificationTest Result
Ozone Exposure, Method BNo CrackPass
Water Resistance — 100°C, 70 h (EA14)
PropertySpecificationTest Result
Volume Change, %± 53.7
Low-Temperature Brittleness — Nonbrittle after 3 min at -55°C (F19)
PropertySpecificationTest Result
Low-Temperature Brittleness (F19)NonbrittlePass
Product Image
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
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EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing

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Product Detail
Model Number :
Customized
Packaging Details :
PE inside , Carton Outside
MOQ :
100 USD
Delivery Time :
7-45 work days
Size :
Any sizes are acceptable
Hardness :
30 ~ 90 shore
Contact Supplier
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing
EPDM Rubber O Ring, Ethylene Propylene O-Ring Seal, NBR Silicone FKM HNBR Optional, Ozone & Steam Resistant for Water Valve and HVAC Sealing

Dongguan Ruichen Sealing Co., Ltd.

Verified Supplier
12 Years
guangdong, dongguan
Since 2006
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Trading Company, Seller
Main Products :
FKM O Rings, NBR O Ring, Silicone O Rings
Total Annual :
15000000-30000000
Employee Number :
200~300
Certification Level :
Verified Supplier
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