NBR compounds are among the most commonly used elastomers for traditional sealing products such as O-rings and other molded seals. Physical and chemical resistance may vary depending on compound formulation. The typical operating temperature range for NBR 90A O rings is -30 °C to +120 °C.
Applications
Pneumatic systems
Hydraulic systems
Gas supply applications
Pumps and valves
Cylinders and general industrial sealing
Medium
Petroleum oils and greases
Hydraulic fluids
Alcohol
Ambient water
Silicone greases
Mineral oil and grease
Di-ester base lubricants
Ethylene-glycol-based fluids
Aliphatic hydrocarbons (propane, butane, diesel fuel, fuel oils)
Compatible with HFA, HFB and HFC fluids
Material Limitations
Limited resistance to high temperatures and ozone
Not recommended for aromatic hydrocarbons, halogenated hydrocarbons, ketones, phosphate ester fluids, or strong acids
Poor resistance to ultraviolet (UV) exposure
Should be protected from prolonged direct sunlight
QZSEALS is a manufacturer of O-rings, offering a wide range of NBR 90A O rings in standard AS568 sizes, with regular stock available for fast delivery. In addition to standard sizes, custom and non-standard O-rings can be produced according to drawings or specific application requirements.
For more information on available sizes, inventory, or custom solutions, please feel free to contact us.
Reviews
There are no reviews yet.