Choose Viton fluoroelastomer when you want an O-Ring that s compressible like kalrez but will stand up to low temperatures. Viton O Rings by Resist boric and Citric acids, ketones, hydrocarbons, and animal and vegetable oils. Temperature range is -10° to 400° F. Viton/FKM compounds are widely used in chemical, automotive, aerospace and industrial applications.

40 durometer O-rings. Item # 001, O-Rings, Buna/ Nitrile. from Arizona Sealing Devices, Inc. Arizona Sealing Devices, Inc. Compound Designation: BN. Standard Color: Black. Description: Presently the seal industry's most widely used and economical elastomer, Nitrile combines excellent resistance to petroleum-based oils and fuels, silicone ...

Depends on the application. In some applications the 90 Durometer o-ring would be better. I actually have 5 kits. Standard Buna-N 70 Durometer kit, Viton 75 Durometer kit, Buna-N 90 Durometer hydraulic tube kit, Metric Buna-N 70 Durometer kit, Neoprene Air Conditioning kit and a Quad-Seal Buna-N 70 Durometer kit.

An O-ring is a donut, or torus shaped seal typically used to prevent the passing of air or fluid. In other words, O-rings are used to keep fluid or air IN or OUT of a defined space. For example, My underwater camera uses O-rings to keep water out and my SCUBA regulator uses O-rings to prevent precious air from escaping.

O-Ring Durometer Chart. The hardness of rubber o-ring compounds are measured by the Shore A durometer; the higher the durometer, the harder the compound. 70-durometer hardness should be used whenever possible as it offers the best combination of properties for most o-ring applications. Durometer Shore A scale is a type of measurement for rubber ...

Choose from our selection of Durometer 55D O-rings, including over 900 products in a wide range of styles and sizes. In stock and ready to ship.

To seal properly, o-ring materials need to deform into a seal groove. Modulus is a key function in determining how much deformation a rubber material will experience under different pressures. Rubber compounds typically range from 40 to 90 Shore A durometer. The lower the durometer the more deformation you will get.

O-ring is a 241, Buna-n, round shape. Mcmaster has three choices, 50,70 90 shore. Order a package of the middle one (McMaster #9452K351 $9.56/pk50). If it's too hard, order the softer one; if too soft, order the harder one. - Leigh.

Low Durometer O-Ring . The simple solution to lowering the compressive load of an O-ring is to switch to a softer O-ring material. Changing to a softer durometer material can result in up to 50% reduction in the force needed to compress an O-ring. For example, with a .070" cross sectional thickness, a 90 durometer O-ring compressed 20% needs ...

Primary considerations for O-ring material selection include chemical compatibility, application temperature compatibility, sealing pressure, durometer, size and cost. Depending on the application, factors such as electrical properties, dynamic resistance, tear resistance and ozone resistance should also be considered.

Durometer specifications are in the O-ring handbook. Sealing Devices offers Parker Seal O-rings, Stat-O-Seals®, lathe cuts, packing, extruded seals, molded shapes, seals and tubing. Sealing Devices is an authorized Parker Sealing Technology Center and fully authorized Parker O-ring distributor. Contact us today at 716-684-7600.

Nitrile (Buna-N): This is the most commonly used o-ring material with a 40 to 90 durometer shore hardness. Providing excellent resistance to petroleum products. It also offers an excellent compression set, tear, and abrasion resistance. It does not offer good resistance to ozone, sunlight, or weather unless it is specifically compounded to do so.

The hardness of rubber compounds is measured by the Shore A durometer; the higher the durometer, the harder the compound. 70-durometer hardness should be used whenever possible as it offers the best combination of properties for most O-Rings applications. Softer compounds stretch easier and seal better on rough surfaces. Harder compounds offer greater abrasion resistance […]

on O-ring drive belts and their application will be found in O-Ring Applications, Section III. 1.2 What is an O-Ring Seal? An O-ring seal is used to prevent the loss of a fl uid or gas. The seal assembly consists of an elastomer O-ring and a gland. An O-ring is a circular cross-section ring molded from rubber (Figure 1 …

Choose our PC lab software to log measurements and chart data or the data collection system with tablet and Android App for use some of our digital durometer testers. We carry test stands for greater testing accuracy than handheld measurements, or testing kits for O-Rings and very thin materials.

Generally, most rubber materials fall under the rubber durometer scale of Shore A. Thus, if you need a rubber or O-ring durometer that feels like a running shoe sole, review our rubber hardness chart below, then pick Shore 70A. A rubber durometer of Shore 70A is the most commonly chosen material hardness for all applications. a. Shore 20A ...

For example, a 90A durometer will result in a very hard O-ring, while a 30A durometer is quite soft. The difference between the two is the 90A will have a lower sound reduction, but will feel more solid and less spongy. A 30A O-ring will have most sound reduction but can result in an unpleasant feel. Material Type

Expert Knowledge Test Procedures of Elastomer Components from O-Ring Prüflabor Richter , an accredited testing laboratory for elastomers and seals. This article is an in-depth technical and historical review of the development of Shore A durometer testing …

Our o-ring groove design guides list default o-ring groove dimensions for the most basic applications and are intended to be used with the following o-ring groove design considerations to engineer an o-ring gland to optimize specific application performance. The wrong size groove makes the best o-ring …

Care must be taken in choosing the right O-Ring for your application. Below are details of the materials G.L. Huyett offers. Durometer, also known as shore, is the measure of the hardness of a material. ... Offered in 70A or 90A Durometer 225° ... G.L. Huyett offers a variety of O-Rings and O-Ring accessories to fit your individual application ...

Thus, if you need a rubber or O-ring durometer that feels like a running shoe sole, review our rubber hardness chart below, then pick Shore 70A. A rubber durometer of Shore 70A is the most commonly chosen material hardness for all applications. Shore A Durometer (Hardness) Chart.

O-Ring Design Considerations What to Know About O-Ring Squeeze, Stretch, Compression, and More . Our o-ring groove design guides list default o-ring groove dimensions for the most basic applications and are intended to be used with the following o-ring groove design considerations to engineer on o-ring gland to optimize specific application performance.

When choosing O-rings, consider the material and whether it's suitable for your sealing application. #5) Hardness. Don't forget to consider the hardness when choosing O-rings. Hardness is usually measured with a Shore A Durometer. A hardness rating of 40 indicates the O-ring is relatively soft, whereas a hardness rating of 90 indicates the ...

standard P.A.I. O-ring sire. Dual turn rings conform to MS 28782 and match the dash numbers of an AN 6227 series of O-rings. MS 28783 back-up rings match the dash numbers an AN 6230 O-rings. Good practice is to use a back-up ring on either side of the O-ring, even though the pressure on the ring may be from one side only. The only time you

M Scale Durometers. O-Rings. This system is designed specifically for measuring small cross section O-rings and thin pieces of rubber (not less than 1.25mm thick). The Type 3 Operating Stand (indenter to specimen) is required for all Type M Durometers. Hydraulic, pneumatic dampening, or electromechanical shall be capable of controlling the rate ...

O-Rings are available in almost all durometers, with 70 or 90 durometer, the most common in most compounds. Softer sealing materials, with lower hardness readings, will more easily flow into the microfine grooves and imperfections of the mating parts, but softer compounds, like 50 durometer compounds, wear and extrude very quickly.

Red SBR (red rubber) is generally 75-80A, and Viton is typically 75A. Molded rubber products are available in hardnesses from 20A to 90A. O-ring hardness is usually 70A and, as with all rubber products, options are available. All hardnesses have a tolerance of +/- 5 points. This means a 70A rubber can measure 65A, and a 60A rubber can also ...

Walker 'O' ring number Refer to How to order section on page 7 for precise specification details relating to back-up rings for Chart 50, Chart 72 and Chart 17000 applications. Back-up ring for use with existing 'O' ring 1) Identify appropriate Chart and part number for existing 'O' ring. (Note: If a standard 'O' ring …

Parker's Fluorocarbon O-Ring, 70 Durometer (VB185-70) Fluorocarbon has increased chemical resistance over traditional fluorocarbon materials. Chemical resistance is expanded to Nictric, Sulfuric Acid, Ammonium Hydroxide Acid, Phosphoric Acid and Hydrochloric Acids. • Heat resistance — Up to 204°C (400°F) • Cold flexibility — Down to ...

Now, follow the steps below to design your own o-ring seal and o-ring groove. Step 1. Choose your rubber properties by going to our O-ring Material Guide section. Step 2. Make sure that the material you choose will withstand the temperature of your system by …

O-rings are solid-rubber seals that are shaped like a doughnut. When pressed between two mating surfaces, O-rings block the passage of liquids or gases. Types of Seals. O-rings can form a static or dynamic seals. A static seal is where the O-ring does not move and is used simply for containing pressure or maintaining a vacuum.

The Durometer of the O-Ring – Harder durometers are generally considered to be more extrusion resistant. This is due to the fact that harder durometer materials typically have higher moduli when compared with those of lower durometer versions.

O-Rings are available in almost all durometers, with 70 or 90 durometer, the most common in most compounds. Softer sealing materials, with lower hardness readings, will more easily flow into the microfine grooves and imperfections of the mating parts, but softer compounds, like 50 durometer …

Importance of Choosing the Best O-Ring Material Wisely. David Fenton August 06, 2021 27 Leave a comment. O-Rings and seals are widely used across various industries. They help in tightly sealing the connection between pipes, tubes, and other elements of complex hydraulic and pneumatic systems. Due to many applications, there is also a wide ...

145.72mm ID x 150.82mm OD Dash 162 Buna-N O-Ring 3/32" Thick, Durometer 90 DURO O-RING, -40 to 250°F. MSC# 79285896 Value Collection (ZMSCH90162) Backordered. Price: $11.15.