Many of the regular black o rings are butyl rubber which will break down in gasoline. This popular o ring material family comparison shows basic rubber material family properties and performance plastic properties.
O Ring Shelf Life Global O Ring And Seal
O ring material for gasoline. Basic o ring chemical resistance compatibility information is based on isolated generic o ring material testing in optimal conditions at room temperature and pressure. O rings are one of the most. Reference guide for o ring materials material use with do not use with comments nitrile buna n air water oils acetone lube oil good wear resistance autoaircraft duro. O ring material quick reference guide rubber sealing materials. O ring material family chemical compatibility temperature resistance and other properties all factor in to o ring material selection for an application. 1 the o ring is compressed resulting in zero clearance 2 the o ring material is vulcanized solid such that it is impermeable to the fluid or gas and 3 the o ring material is resistant to degradation by the fluid or gas.
Pantaz mechanical 20 dec 04 2233. O ring chemical compatibility chart learn how different o ring materials and chemicals interact. For the purposes of this article we will focus on just three common rubber types found in o rings and similar automotive seals. 70 standard fuels gasoline brake good compression set resistance temperature. Markez is similar to kalrez and chemraz at significant cost savings and custom o ring sizes are supplied without additional tooling or setup charges. Slightly harder durometer 75 shore a fluorocarbon viton rings can offer low swell and resist a diverse range of chemicals uv light and ozone.
These seals have a simple donut shaped ring technically called a toroid and are manufactured using pliable material such as elastomers like silicone buna n and ethylene propylene. Heres a very complete reference. Buna n viton and epdm. 35 to 250 engine coolant lpg fluids automatic good short term resilience. Note that each type is actually a family of rubber compounds. Fluorocarbon viton fkm.
Explosive decompression when elastomer seals are exposed to high pressure gas for a prolonged period the gas permeates into the seal material. The term buna n is really not much more specific than the term steel. O rings are installed in order to seal off connections between connectors pipes tubes etc. Static applications of o rings may include fluid or gas sealing applications in which. The high fluorine levels in fluorocarbon rings give them excellent swelling and permeability resistance. Get durable buna n and viton o rings from grainger to help tightly seal connections in a wide range of industrial applications.
15 to 400 degrees fahrenheit. Buna n rings with durometer 70 shore a can offer hood physical properties and provide excellent resistance to petroleum products. Buna n nitrile and viton are the most commonly found o ring materials compatible with gasoline. Broad chemical resistance transmission and blended gasoline. They also feature high temperature and chemical resistance.
Gallery of O Ring Material For Gasoline
