Need 70-Durometer NSF 61 EPDM O-rings Tomorrow?
Datwyler is committed to being the leading supplier of EPDM O-rings for NSF/ANSI Standard 61 (NSF 61). That standard sets limits for the amount of chemicals permitted to seep into drinking water. Datwyler’s low-cost, general-purpose, peroxide-cured 5323-70 EPDM compound is certified to NSF 61. Compound 5323-70 meets the Federal Drug Administration (FDA) standard requirements for food-handling applications. We’ve doubled our inventory, cut our prices 15 percent, and reduced or minimum order to about $5. So when you need peroxide-cured EPDM O-rings that meet NSF 61, you no longer have to check more than one source for available inventory and competitive prices. Make Datwyler your first choice for NSF 61 O-rings.
5323-70 Meets Your Needs
1. Outstanding Resistance to Compression Set
Datwyler seals made from peroxide-cured 5323-70 have excellent resistance to compression set. After testing 5323-70 for 22 hours at 257°F, it had a compression set of only 13 percent. At 13 percent, 5323-70 significantly outperforms similar sulfur cured EPDM compounds. 5323-70’s excellent compression set allows it to better maintain its elastomeric properties and original thickness, preserving seal integrity.
2. Excellent Resistance to Chloraminated Water
Datwyler’s peroxide-cured 5323-70 compound has superior resistance to volume swell in chloraminated water applications. After testing for 70 hours at 212°F in chloraminated water, 5323-70 seals experienced volume swell of one percent. That low volume swell makes seals made from peroxide-cured 5323-70 substantially better than similar sulfur-cured compounds. Datwyler recommends its 5323-70 compound for chloraminated or chlorinated applications such as faucets, hose bibs, and other residential plumbing fixtures.
3. Exceptional Prices and Inventory
Datwyler’s 5323-70 prices are the lowest in the industry. We work with the best suppliers, buy in large volumes, and sell in standard quantity bags. Those features allow us to provide you with 5323-70 O-rings at great prices. Additionally, we carry over 10 million pieces of 5323-70. And we stock all 369 standard sizes. If we receive your order before 2:30 p.m. Pacific time, you can receive your parts as soon as the next day.
Key Features
| Datwyler’s 5323-70 EPDM seals are ideal for use in chloraminated water applications. Key features include: |
| NSF 61 Listed: Datwyler 5323-70 seals are approved for materials used in drinking water service (listed for maximum exposure of seal material 1.3in2/liter of commercial hot water at 180°F; listing includes domestic hot and cold water). |
| FDA Conforming: Datwyler 5323-70 seals conform to FCDA standard 177.2600, which provides approval for repeated use in food handling equipment. |
| Outstanding resistance to compression set: Datwyler 5323-70 peroxide-cured seals had a compression set of only 13 percent after 22 hours at 257°F. |
| Excellent resistance to chloraminated water: Datwyler 5323-70 seals had a volume swell of 1 percent after 70 hours at 212°F in chlorminated water. |
| Wide range of service temperatures: Datwyler 5323-70 seals are suitable for applications ranging from -50 to +250°F. |
Chemical Resistance
| USE WITH | DO NOT USE WITH |
|---|---|
| Acetone Automotive Brake Fluid Skydrol Steam Water | Automatic Transmission Fluid Gasoline Military Aircraft Hydraulic Fluid |
Typical Values for Compound 5323-70
General-purpose 70-durometer, NSF 61 listed EPDM
| Section of Spec. | Physical Property | Requirement | Typical Value | ASTM Test Method |
|---|---|---|---|---|
Z1 | Original Properties Hardness, Shore A Tensile strength, MPa (psi), min. Ultimate elongation, pct., min. Modulus at 100 pct. elongation, psi | 70 ± 5 10.0(1450) 200 Report | 68 14.2(2059) 268 2.5(363) | D2240 D412 D412 D412 |
Basic | Heat Aging 70 hours at 150°C (302°F) Hardness change, pts., Shore A Tensile strength change, pct. Ultimate elongation change, pct., max. | ±15 ±30 -50 | 3 -5 -13 | D573 |
| B36 | Compression Set, Solid 22 hours at 150°C (302°F) pct. of original deflection, max. | 40 | 17 | D395 Method B |
| EA14 | Fluid Aging, Water 70 hours at 100°C (212°F) Volume change, pct. | ±5 | 2 | D471 |
F19 | Low Temperature Property Nonbrittle after 3 min. at -55°C | Pass | Pass | D2137 |
CONCLUSION:
Datwyler import ethylene-propylene-diene compound 5323-70 meets the requirements of ASTM D2000 M2DA710 A26 B36 EA14 F19 Z1.
ASTM is the acronym for the American Society for Testing and Materials.
Source: Test Report 2577.
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