Product Overview A rubber o ring is one of the most versatile and essential sealing
solutions used in modern engineering. These doughnut shaped
elastomers are designed to be seated in a groove and compressed to
create a leak proof barrier between two or more parts. Our 75 Shore
A EPDM O rings are specifically engineered for heavy duty
industrial use, providing a reliable seal that prevents the escape
of fluids or gases in both static and dynamic applications. Whether
you are dealing with high pressure water systems or outdoor
electrical enclosures, these rings ensure long term operational
safety. | | |
Why Choose EPDM?Understanding the difference between EPDM and other common
materials is crucial for ensuring the longevity of your equipment: EPDM vs Nitrile (NBR): While Nitrile is the best choice for
oil and fuel contact, it has very poor resistance to weather and
sunlight. EPDM outlasts Nitrile significantly in any outdoor or
water based application.EPDM vs Silicone: Silicone can handle higher temperatures but is
very soft and easily torn. EPDM offers much better mechanical
strength and abrasion resistance, making it better for moving
parts.EPDM vs Viton (FKM): Viton is excellent for harsh chemicals and
high heat but is far more expensive. For steam, water, and general
outdoor weatherproofing, EPDM provides a more cost effective and
efficient solution.
Technical Parameters and Specifications | Material | Ethylene Propylene Diene Monomer (EPDM) | Color | Black and others | Hardness | 75 Shore A (plus or minus 5) | Temperature Range | -50 degrees Celsius to +150 degrees Celsius (-60 degrees Fahrenheit
to +300 degrees Fahrenheit) | Critical Diamension Measurement | ID* C/S (mm) |
Company ProfileWelcome to Shanghai Qinuo Industry. Backed by our state-of-the-art,
ISO 9001:2015 certified manufacturing base—Jiangsu Ruowei Energy
Technology—we stand at the forefront of delivering high-performance
rubber solutions.Our production base in Nantong is equipped with over 30 advanced
vulcanizing machines, delivering a monthly capacity of 20 tons
(40,000 lbs) across 20+ product categories. Strategically located
near Shanghai’s major air and sea ports, we ensure streamlined
logistics and reliable global delivery. Under our registered brands Royal Way® and SHQN®, we remain committed to our core principle: "Quality for
Stability, Innovation for Progress." We provide the energy sector
with durable, precision-engineered sealing solutions you can depend
on.Hot Selling ProductsFAQQuestion 1: Why is 75 Shore A hardness recommended for outdoor
seals?
Answer: A 75 Shore A rating provides a balance of toughness and
flexibility. It is firm enough to resist being pushed out of place
by wind or water pressure but flexible enough to maintain a tight
seal against uneven surfaces.Question 2: Does EPDM crack when exposed to direct sunlight?
Answer: No. Unlike natural rubber or Nitrile, EPDM has a saturated
polymer backbone that prevents UV rays from breaking the molecular
bonds. This makes it highly resistant to the cracking commonly seen
in outdoor seals.Question 3: Can I use these O rings for steam pipes?
Answer: Yes, EPDM is excellent for steam applications. It remains
stable in high temperature water and steam environments up to 150
degrees Celsius.Question 4: What is the shelf life of an EPDM O ring?
Answer: When stored in a cool, dark place, EPDM O rings can have a
shelf life of up to 10 years or more, as the material is very slow
to age or degrade.Question 5: Are these seals compatible with cleaning chemicals?
Answer: EPDM is highly resistant to many common cleaning agents,
including dilute bleach and alkaline cleaners, making it ideal for
equipment that requires regular sanitization. |
