Often, differences in material compounding and processing can cause performance inconsistencies. This is especially true for Ethylene Propylene Rubber (EPM, EPR, EPDM) O-rings. To solve this problem, we utilize Parker E540-80, E515-80, E740-75, and EM163-80 Ethylene Propylene O-rings.
Zatkoff Seals & Packings is committed to offering innovative products with an unwavering commitment to quality, safety, and reliability. That's why we are proud to carry the largest Parker EP O-ring inventory in the world. With more than a half million parts in stock, we can ensure your complete access to these high-quality products.
Types of Parker Ethylene Propylene O-Rings
E540-80 O-Ring
E540-80, Parker's EPR copolymer ethylene propylene and ethylene-propylenediene rubber (EPDM) terpolymer is particularly useful when sealing phosphate-ester hydraulic fluids and in brake systems that use glycol- and silicone-based brake fluids.
Product Features
- Heat Resistance & Cold Flexibility
- Up to 302°F (150°C) — max. 400°F (204°C) in water and/or steam
- Down to approximately -70°F (-57°C)
- Chemical Resistance
- Hot water and steam up to 300°F (149°C)
- Glycol-based brake fluids (Dot 3 & 4) and silicone-based brake fluids (Dot 5) up to 300°F (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
- Certifications
- ASTM D2000 M2AA810 A13 EA14 F17
E515-80 O-Ring
E515-80, Parker's 80 durometer Ethylene Propylene (EPR) is compatible with solvents and other chemicals, and is known for being useful in sealing phosphate-ester hydraulic fluids and in brake systems that have a glycol or silicone base.
Product Features
- Recommended Temperature Range
- -70°F to 250°F (-57°C to 121°C)
- Chemical Resistance
- Hot water and steam up to 300°F (149°C)
- Glycol based brake fluids (Dot 3 & 4) and silicone-based brake fluids (Dot 5) up to 300°F (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
- Certifications
- MIL-P-82744
- NAS 1613 Rev 2
- ASTM D2000 M2AA810 A13 EA14 F17
E740-75 O-Ring
E740-75 is a terpolymer of ethylene and propylene with a diene third monomer used for cross linking. Parker's ethylene propylene is the most common material used for nuclear applications with particular advantages when sealing phosphate-ester hydraulic fluids and in glycol- and silicone-based brake systems.
Product Features
- Recommended Temperature Range
- -70°F to 250°F (-57°C to 121°C)
- Chemical Resistance
- Hot water and steam up to 400°F (204°C)
- Glycol-based brake fluids (Dot 3 & 4) and silicone-based brake fluids (Dot 5) up to 300°F (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
EM163-80 MIL/AERO O-Ring
Parker's EM163-80 is a best-in-class product for protection against low temperature leakage. EM163-80 also meets the NAS1613 Rev 6 specification, and provides enhanced low temperature performance and impressive resistance to all commercially available phosphate ester fluids.
Product Features
- Excellent resistance to all commercially available phosphate ester fluids (i.e., AS1241, Skydrol, Hyjet)
- Excellent low temperature performance
- 80 Shore M hardness
- Product capabilities include O-rings, molded shapes, extruded and spliced geometries
- Recommended Temperature Range
- -80°F to 250°F (-62°C to 121°C)
- Chemical Resistance
- Hot water and steam up to 300°F (149°C)
- Glycol based brake fluids (Dot 3 & 4) and silicone-based brake fluids (Dot 5) up to 300°F (149°C)
- Many organic and inorganic acids
- Cleaning agents, sodium and potassium alkalis
- Phosphate-ester based hydraulic fluids (HFD-R, Skydrol, Hyjet)
- Silicone oil and grease
- Many polar solvents (alcohols, ketones, esters)
- Certifications
- NAS 1613 Rev 6
- ASTM D2000 3DA815 A26 B36 EA14 Z1
At Zatkoff Seals & Packings, we are proud to carry a complete inventory of Parker E540-80, E515-80, E740-75, and EM163-80 O-rings. Together with Parker, Zatkoff is committed to ensuring your premium access to these industry-leading elastomers. Contact us today to request more information about the complete offering of Parker premium parts.