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The VALUE COLLECTION ZBD9984-18 is a Dash 140 O-ring made from Nitrile Butadiene Rubber (NBR), designed for static and dynamic sealing applications across plumbing, hydraulic, pneumatic, and fluid-handling systems. It measures 2.25 inches inside diameter, 2.44 inches outside diameter, and 0.09 inches thick with a round cross section. The 70-durometer hardness rating makes it suitable for moderate-pressure environments where a firm, resilient seal is required. NBR compound provides solid resistance to petroleum-based fluids, oils, and fuels. Licensed trades and maintenance technicians working on pumps, valves, fittings, and manifold assemblies commonly specify this O-ring size.
This O-ring fits standard Dash 140 groove dimensions per AS568 sizing conventions. It is appropriate for residential and light commercial plumbing, pool and spa equipment, HVAC refrigerant-adjacent fluid circuits, and general industrial fluid-handling assemblies. The NBR material performs across a wide service temperature range, making it a reliable choice in both indoor mechanical rooms and outdoor equipment enclosures. Always confirm groove dimensions and fluid compatibility before installation.
Designed as a standard Dash 140 replacement O-ring for any application specifying AS568 Dash 140 groove dimensions with NBR compound compatibility.
O-ring installation should be performed by a licensed plumber, HVAC technician, or qualified maintenance professional. Depressurize and isolate the system before removing the existing O-ring. Clean the groove thoroughly and inspect for scoring or damage before seating the new ring. Apply a compatible lubricant approved for the fluid service to ease installation and prevent rolling or pinching during assembly.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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