Types of o ring seals.
Nitrile o rings for ac.
They cover more surface than round profile o rings for a better seal in static applications such as hose pipe and faucet connections.
Neoprene can seal refrigerants in refrigeration and air conditioner units as well as petroleum oils and mild acid resistance silicate ester lubricants.
O ring material quick reference guide rubber sealing materials.
Hnbr o rings sometimes referred to as highly saturated nitrile hsn offers a temperature range of 25f to 350f.
O ring compatibility plays a critical role in o ring performance รข find the right material for your application and avoid o ring failures.
Seals for oil well applications.
Hnbr o rings do are a much better choice for use in r 134a auto ac systems.
These o rings have a square profile with flat edges on all four sides.
Used in all oil resistant applications including exposure to such oil additives as detergents anti oxidants and anti wear agents.
For example if you know your assembly works at more than 100 c nitrile will not be suitable.
Exposure to oil soured with metal sludge.
O ring material family chemical compatibility temperature resistance and other properties all factor in to o ring material selection for an application.
The proper o ring size is a fundamental aspect of proper o ring performance.
The result is an hnbr o ring that has superior heat ozone chemical resistance and mechanical characteristics over standard nitrile.
If the o ring quad ring x ring or square ring you need doesn t fit these standards custom.
The nitrile o ring temperature range is usually anywhere from 50 c to 120 c.
Whether your application conforms to u s japanese jis british bs or common metric sizing for o rings these o ring size charts will help you locate the right o ring size.
Viewing these two o ring materials at a glance it s easy to see some occasions where the decision of viton vs nitrile o rings will be clear to see.
The neoprene o ring temperature range is between 65 degrees fahrenheit and 300 degrees fahrenheit.
Rubber o rings are perhaps the most common type serving an enormous array of purposes and functions in less specific or demanding applications than some of the higher tech variants seen in heavy industrial.
This popular o ring material family comparison shows basic rubber material family properties and performance plastic properties.
