CO₂‑Resistant O‑Rings

Rubber O-rings guarantee a tight seal between two components. They are used to prevent leakage of the working medium. This type of sealing is most commonly applied in applications operating in environments with very high pressure. They are used in static, dynamic, hydraulic, and pneumatic applications. An O-ring seal is most often made of a high-quality elastomer (polymeric synthetic material or natural rubber). They are sold individually or in sets. The price of O-rings depends on the material from which they are made as well as the order quantity. The PowerRubber rubber products store offers a wide range of O-rings.

If you need additional information, please contact us.

O-ring seals for carbon dioxide (CO₂)

What is carbon dioxide (CO₂)?

Carbon dioxide (CO₂) is a colorless and odorless gas occurring naturally in the environment.

Effect of carbon dioxide on O-ring seals

Over time, O-rings made of soft materials may swell as a result of gas absorption. Swelling has a negative effect on the seal and may lead to internal damage (cracking). The PowerRubber store and manufacturer offers O-ring seals resistant to CO₂. We provide sealing rings made of polyurethane, PTFE, nitrile, and fluoroelastomers.

Nitrile sealing rings

Nitrile O-rings are considered hard and durable general-purpose seals. Ideal for use in temperatures ranging from -50°C to +120°C. NBR rubber (Buna-N) guarantees excellent sealing properties and a hardness range from 40 to 90 Shore A. It is characterized by very good strength and mechanical properties. The product ensures low gas permeability and high abrasion resistance. NBR rubber is suitable for contact with alcohol, water, hydraulic fluids (HSA and HSB oil-water emulsions, HSC polyglycol-water mixtures), oils and petroleum-derived fuels, and silicone greases. Very good resistance to oxygen, ozone, and atmospheric conditions. The rubber shows low resistance, among others, to glycol-based brake fluids.

HNBR seals

Hydrogenated acrylonitrile butadiene rubber (HNBR) is characterized by high strength, thermal stability, and resistance to abrasion, ozone, weather conditions, and acidic gases. It should be noted that HNBR shows chemical resistance to aliphatic hydrocarbons such as propane, butane, gasoline, lubricating oil, mineral oils, as well as hydraulic fluids of the HFA, HFB, and HFC types. The product performs well in contact with animal and vegetable fats and oils, as well as with diluted acids and bases at moderate temperatures.

PTFE sealing rings

PTFE is a plastic material characterized by resistance to low and high temperatures, weather conditions, and excellent thermal and electrical insulation properties. The PowerRubber store offers PTFE (Teflon®) O-rings impermeable to virtually all liquids and gases in the temperature range from approximately -50°C to +260°C.

Fluoroelastomer sealing rings

Fluoroelastomers are fluorocarbon compounds used in environments where excellent resistance to compression, degradation caused by sunlight, and ozone is required. FPM (Viton®) is distinguished by low gas absorption and resistance to a wide range of chemicals. The fluorine content ensures non-flammability. Fluorocarbon rubber (Viton®/FKM/FPM) has a wide temperature range from -50°C to +205°C / +230°C. Fluorocarbon rubber shows excellent resistance to acids, mineral and vegetable oils, non-flammable hydraulic fluids, aliphatic, aromatic, and chlorinated hydrocarbons. Available in various colors (green, brown, black). A detailed description of all products offered by the PowerRubber store can be found on our website. The cost of sealing rings depends on the order quantity.

Seals for CO₂ and HP cylinders

We offer O-ring seals for CO₂ and HP cylinders, 20 pcs, made of very high-quality rubber, which due to its properties is also used for the production of seals applied in high-pressure hydraulics and pneumatics. They are perfect for home use and workshop applications.

Check whether rubber O-rings are required in sports weapons (e.g. Umarex, Walther, Beretta airguns).

According to available data, CO₂ pistols using 12 g cartridges belong to a category of weapons that does not require a permit. Thanks to CO₂ pistols, sport shooting enthusiasts can safely pursue their interests, for example using reactive targets. O-rings are required for CO₂ pistols (e.g. CO₂ capsule O-rings 88 g for the Umarex Airmagnum 850 carbine).

For more information about CO₂-resistant O-rings, contact us by phone at +48 22 292 40 24 or +48 505 16 03 03, by email (Power@PowerRubber.com), or via our contact form.

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