Buna O Rings Temperature Rating

But for short working periods it will take even higher temperatures. While both viton and buna seals both serve as great sealing options at moderate temperatures viton is far superior to buna for high temperature applications. Find o ring temperature ranges in the attached o rings temperature guide for o ring compounds and general elastomers including viton fluorosilicone nitrile silicone epdm kalrez neoprene and aflas materials.

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Buna o rings temperature rating.

1 to 249 f. Buna buna n buna 70 8707. These buna n o rings are made of fda listed material for use with food and beverage. Material certification with shelf life cure date and.

O ring material family chemical compatibility temperature resistance and other properties all factor in to o ring material selection for an application. 250 to 499 f. Depending on the grade the working temperature range is considered to be 26 c to 205 230 c 15 f to 400 440 f. Viton seals hold indefinitely at temperatures up to 400 f and can last up to 48 hours at temperatures up to 600 f.

Filter by clear all no filters selected. O ring temperature ranges by o ring compound temperature guidelines for o rings and o ring compounds. Oil resistant clean room buna n o rings. N507 buna buna n buna 90.

However before you choose silicone for an o ring seal due to it s o ring temperature range there are also other silicone shortcomings so make sure that it can withstand your particular environment by going to our rubber properties section and rubber chemical resistance chart. 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. As a sealing option the crucial difference between buna and viton is the temperature range the materials function in. Low temperature 30 f minimum operating temperature.

Nitrile 90 durometer o ring low temperature mil aero n0507 90 product series filter. Viton is the choice over buna for high temperature applications. Degrees in fahrenheit f degrees in celsius c polymer type 25 to 450 4 to 232 aflas 75 to 250 59 to 120. Maximum temperature 249 to 0 f.

O ring material quick reference guide rubber sealing materials. Parker s nitrile rubber nbr o rings are compatible with oils and gases. Get your parker account today. Also notice that silicone has high rubber temperature resistance and also great low rubber temperature resistance.

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