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The VALUE COLLECTION ZBD9500-230 is a Dash 230 Viton O-ring designed for static and dynamic sealing applications in plumbing, HVAC, and industrial fluid systems. With a 2.5-inch inside diameter, a 2.75-inch outside diameter, and a cross-section thickness of 0.125 inches, this round-profile ring provides a reliable compression seal in grooves machined to Dash 230 dimensions. The Viton (FKM) compound delivers strong resistance to fuels, oils, hydraulic fluids, and high-temperature media. Rated from -15 degrees F to 400 degrees F, it holds up in demanding thermal cycles where standard Buna-N or EPDM rings would fail. Hardness is rated at 75 Shore A, which falls into the hard classification for dimensional stability under pressure.
This O-ring is suited for use in pump housings, valve bodies, manifold fittings, refrigerant line fittings, and chemical-handling assemblies where elevated temperature or chemical exposure rules out softer elastomers. It is commonly installed by licensed plumbers, HVAC technicians, and industrial maintenance professionals during equipment overhaul, leak repair, or preventive maintenance. The Dash 230 size is a widely standardized dimension, making this ring a direct drop-in for any groove engineered to that AS568 dash number.
Designed as a standard Dash 230 replacement O-ring for any pump, valve, fitting, or housing machined to AS568 Dash 230 groove dimensions with a 2.5-inch inside diameter and 0.125-inch cross section.
Power down or depressurize the system completely before removing the old O-ring and inspect the groove for nicks, corrosion, or debris that could compromise the seal. Apply a light coat of compatible lubricant to the O-ring before seating to prevent rolling or tearing during assembly. Do not stretch the ring beyond its natural diameter when installing, and confirm the groove dimensions match Dash 230 specifications before torquing the fitting. This part is not FDA approved and should not be used in food-contact or potable-water applications.
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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