What temperature are O-rings good for?
There are many advantages to using an o-ring for your sealing needs, including their ability to hold a strong seal through a wide range of temperatures. The general accepted range for o-ring use is approximately -75 degrees and 620 degrees Fahrenheit.
What is the highest temp O-ring?
204°C
FEP O-rings The maximum temperature resistance of FEP is 204°C and it encapsulates standard elastomeric cores such as silicone or Viton®.
What are AC O-rings made out of?
Nitrile (Buna), Neoprene, Ethylene Propylene (EPDM Rubber), Silicone, Fluorocarbon (Viton), and PTFE (Teflon) are among the most commonly used compounds for O-rings and seals.
What is the temperature range of Viton O-rings?
Viton seals provide an indefinite seal for temperatures up to 400°F, and for temperatures up to 600°F they offer an excellent seal for more than 48 hours.
What is the difference between black O-rings and green O-rings?
Black o rings are primarily neoprene or Nitrile or, in some cases, a mix of the two materials. Black o rings are most commonly used for auto air conditioning applications. Green o rings are hydrogenated Nitrile, also known as highly saturated Nitrile, or more commonly known as HNBR.
Are rubber O-rings fuel resistant?
Buna (Nitrile or NBR) O-rings: general purpose sealing Buna O-rings, also known as nitrile or NBR O-rings, offer excellent sealing and mechanical properties at a low cost. Buna O-rings have resistance to common lubricants and are recommended for crude oil, gasoline, propane, petroleum oils and water.
Are rubber O-rings heat resistant?
EPDM O-Ring Material: A synthetic rubber providing excellent chemical resistance and heat resistance. Has an operating temperature range of -60° to 300°F (-51° to 150°C) and a hardness range of 40-90 durometer.
Are AC O-rings fuel resistant?
Buna O-rings have resistance to common lubricants and are recommended for crude oil, gasoline, propane, petroleum oils and water.
Is Viton better than Nitrile?
General Suitability: Viton® is best suited for diverse sealing jobs that require high temperature and chemical resistance. This makes Viton® far superior to Nitrile in these regards. They are also designed to resist most oils and lubricants, more importantly petroleum-based lubricants.
What is the difference between black o rings and green o rings?
Is Viton better than nitrile?
Are Viton O-rings heat resistant?
Viton ® o-rings from Marco Rubber offer excellent compatibility with a range of chemicals, oils and resist high temperatures up to 400F. Viton is also known as FKM made of fluoroelastomer one of the most versatile and widely used sealing materials.
What should the temperature be for an O ring?
Recommended O-ring application service temperature limits for basic polymer types. Degrees in Fahrenheit (F ) Degrees in Celsius (C ) Polymer Type. 25° to 450°. – 4° to 232°. AFLAS. – 75° to 250°. – 59° to 120°.
What are the tolerances for O-ring rubber?
Molded Tolerances Standard o-ring tolerance charts, x-ring tolerances, molded rubber tolerances, extruded tolerances and rubber sheet tolerances. This guide is intended for general reference use only. The materials and compound numbers listed are the most commonly used.
How to determine the end-use temperature range?
The most practical way of determining an end-use temperature range is testing in the actual application conditions. Consult a Marco Engineer for more details. Explore Groove Designs O-ring groove dimension guidelines for standard o-ring grooves, metric o-ring grooves, JIS o-ring grooves, and other o-ring gland designs.
Is there a high or low temperature range for rubber?
Here is a rubber temperature chart that provides high and low temperature ranges for all popular rubber materials. The closer that your material is to the limit of your rubber temperature range, the faster the material will degrade. Also, notice that Silicone has high rubber temperature resistance and also great low rubber temperature resistance.