Nitrile is unique among synthetic rubbers in that it is generally resistant to chemicals such as oil and fuel among other substances such as mineral and vegetable oils diluted acids.
Buna o ring material.
O ring materials compatible with ammonia anhydrous select a material to show its compatible chemicals aflas 0 buna n nitrile 3 butyl 4 chemraz 3 epichlorohydrin 0 ethylene propylene 4 fluorocarbon 1 fluorosilicone 1 hypalon 0 kalrez 4 natural rubber 1 neoprene 4 nitrile hydrogenated 3 polyacrylate 1 polysulfide.
Which seal for your application.
Its versatility makes it an ideal material for o rings seals gaskets and custom molded components for all industries and applications.
As a sealing option the crucial difference between buna and viton is the temperature range the materials function in.
Buna n also known as nitrile or nbr is a synthetic rubber material.
O rings are an integral component in most industrial and mechanical systems.
O ring material quick reference guide rubber sealing materials.
Buna n o rings also referred to as nbr o rings and nitrile o rings are the most widely used o ring material in the word because of low cost good mechanical performance with resistance to water most basic oils lubricants and some fuels many pneumatic hydraulic systems and the default choice for basic applications.
Therefore the best o ring material is the material best suited for the application.
Viton is the choice over buna for high temperature applications.
Has an operational temperature range of 40 f to 250 f 40 c to 121 c and a hardness range of 40 90 durometer.
Viton seals hold indefinitely at temperatures up to 400 f and can last up to 48 hours at temperatures up to 600 f.
O rings made from nitrile are typically used for general sealing purposes which includes sealing of hydraulic fluids petroleum oils water and so on.
Buna n sometimes shortened to just buna is a trade name for nitrile rubber known internationally as nbr.
Standard durometer is 70.
A synthetic rubber with excellent oil resistance and fair to good chemical resistance.
O ring material family chemical compatibility temperature resistance and other properties all factor in to o ring material selection for an application.
Because o ring material selection is driven by an industrial or mechanical system that system will define which material is best suited to fulfill the application requirements of the o ring.
Buna nitrile o ring material description.
Buna n o rings buna n o rings.
What is the best o ring material.
Nitrile buna n o ring the material nitrile also known as buna n or acrylonitrile butadiene rubber functions at a temperature range of between 65 f and 300 f.
O ring and rubber seal materials.
It is normally the least expensive of the rubber types we will discuss here.
Nitrile elastomers are copolymers of acrylonitrile and butadiene.
