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The Hypertherm 044028 is a 70 Shore A durometer Buna-N (Nitrile) O-ring specifically designed for use in high-capacity plasma cutting and marking systems. It conforms to the AS568-028 standard, functioning as a pressure-energized seal to prevent fluid and gas leaks within the plasma arc assembly.
Features
Pressure-energized sealing for fluid and gas containment
Resistance to petroleum-based oils and hydrocarbon fuels
Resistance to dilute acids and silicone lubricants
Abrasion resistance
Tensile strength maintenance in water applications
Compatibility with ethylene glycol base fluids (Hydrolubes)
Resistance to Di-ester base lubricants (MIL-L-7808)
Specifications
Manufacturer: Hypertherm Inc.
Part Number: 044028 (HY044028)
Material: Buna-N (Nitrile / NBR)
Durometer: 70 Shore A
Standard: AS568-028
Inside Diameter (ID): 1.364" (34.65mm)
Cross-Section (CS): 0.070" (1.78mm)
Nominal ID: 1-3/8"
Nominal OD: 1-1/2"
Nominal CS: 1/16"
Operating Temperature Range: -40°F to +250°F (-40°C to +121°C)
