Parker O-Rings and Materials

If you have an automobile, you are probably aware of the need for Parker O-Rings. But what are these special rings, and what’s the best material for them? Thankfully, the company offers an o-ring sizing chart to help you choose the right one. To help you with this, they also offer a handy tool called the Parker O-Ring Selector. With this tool, you can quickly determine the proper o-ring size and materials.


As the leading manufacturer of polyurethane O-Rings, Parker is a leader in the field of NBR. These materials are derived from a reaction between a polyol and a diisocyanate. They are characterized by excellent strength, durability, and tear and permeation resistance. As a result, they are used widely in various applications, from gaskets to seals.

The numbering system of Parker o-rings helps you identify each type. These rings are sorted by their compounds, polymers, and hardness. You can easily identify which size fits your needs by using the Parker O-Ring Selector. The tool also helps you choose the right material for your needs. For more information, visit website. To choose the right o-ring for your application, contact the Parker team today.

Nitrile Buna-N O-Rings are used in many applications. Many manufacturers produce these products. They are inexpensive, durable, and can withstand extreme temperatures. They are also resistant to sunlight, ozone, and heat. However, they are not suitable for use in petroleum-based fluids and aeronautical brake systems. For this reason, Parker recommends nitriles for most applications.

Choose the right o-ring based on the type of sealing you need. A variety of materials can be used in various applications. Aside from the high-quality, Parker O-Rings are also available in a variety of materials. The range of materials and sizes available is vast. You can choose the best o-rings for your application by contacting an Authorized Distributor today. So, if you’re looking for a reliable supplier, trust the Parker O-Rings brand.


Nitrile Parker O-Rings offer a variety of advantages over standard O-Rings. These compounds can be used in a variety of applications, including high-pressure sealing and compression-compression fittings. They have excellent chemical and abrasion resistance and are non-toxic. Nitrile is also available in various hardness levels, including abrasive and hard. This article will discuss the differences between nitrile and standard O-Rings and how they are used.

Nitrile rubber o-rings, sometimes called Buna-N, are a common sealing elastomer. They are composed of copolymers of acrylonitrile and butadiene. Nitrile o-rings can be non-magnetic, metal-detectable, or non-magnetic. The High-Visibility Nitrile O-Rings, on the other hand, are a special type of nitrile, which maintains the properties of the original compound while displaying a distinct neon green color.

The most popular type of NBR O-ring is the Buna-N type. It has excellent sealing properties and is widely used in hydraulic and petroleum applications. Its characteristics include good abrasion, tensile strength, compression set resistance, and electrical resistance. While the Buna-N O-rings have the highest degree of resistance to most fluids, they aren’t resistant to ozone or ultraviolet degradation.


General Purpose EU Polyurethane O-Rings are highly durable and strong. Also known as millable gum urethane, this material is moderately expensive and is usually reserved for applications that require a certain combination of physical properties. Common end uses include pneumatic and industrial seals. The following tables provide some general sizes and descriptions. They are available in standard metric and inch sizes.

Among the common applications for polyurethane o-rings, gaskets, and seals is bulk materials transfer systems. The material’s excellent chemical and abrasion resistance makes it the ideal choice in many challenging environments. This material also exhibits high elasticity and rebound properties. Moreover, it is highly resistant to heavy loads. While polyurethane is not compatible with every application, it is ideal for many. Typical applications for polyurethane gaskets and o-rings include automotive, hydraulics, bulk material transfer systems, and hydrostatic testing.

Polyurethane O-Rings offer excellent wear resistance and compression set. They are insensitive to peaks in pressure and exhibit high abrasion resistance. Polyurethane O-Rings are ideal for high-pressure applications and are suitable for a wide range of temperatures. The Parker Pradifa Ultrathane(r) O-Ring is an ideal material for pneumatic valves.

High-performance polyurethane materials make this material a suitable option for static head seals. Its unique design and symmetrical geometry minimize installation risks and backup blowout. Its extrusion resistance makes it easier to install and maintain and works effectively in diverse environments. Further, its high-quality polyurethane material also provides high resistance to temperatures and aggressive chemistries.

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Nitrile copolymer

Parker O-Rings made from Nitrile Copolymer are a common material in a wide range of industries. Nitrile is a versatile elastomer that has a wide range of mechanical properties and is widely used in the seal industry. Unlike Fluoroelastomers, Nitrile is economical and offers a wide range of mechanical properties. It is an excellent fuel and oil-resistant material, and it has a high level of resistance to many oils, silicone greases, and hydraulic fluids. In addition to its good resistance to water and oil, Nitrile rubber is non-polar and is a good choice for applications requiring a high level of chemical resistance.

Nitrile copolymer is the standard material for hydraulic applications, and it is also a popular material for other industries, such as the aerospace industry. The physical properties of Nitrile copolymer can be modified to meet particular needs, such as UV resistance or flame retardancy. The percentage of acrylonitrile in the base polymer plays an important role in determining the quality of Nitrile-compounds.

These types of O-Rings may display several signs of corrosion or failure. Depending on the chemical media used, they can exhibit cracks, blisters, and changes in hardness. Some O-rings can also become discolored. Chemicals that react with certain elastomers can increase the cross-link density of the elastomer, creating a hard, durable material. Other chemicals, however, can cause a soft tacky material.

Nitrile Buna-N O-Rings are the most common o-ring material in the world, with the lowest cost and highest inventory of all. However, they are not recommended for harsh chemicals, sunlight, or outdoor weathering. However, their mechanical properties make them a great choice for many industries. There are many benefits to using Nitrile Buna-N O-Rings

In addition to being cheap, Nitrile Copolymer O-Rings are a great choice for many applications. Despite their low price, they still provide excellent performance. Whether you need a high-quality O-Ring or an inexpensive one, they will help you find the best solution. With the many benefits of Nitrile Copolymer, you can find the right elastomer for any application.

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