Value Collection ZMSCS70230 Silicone O-ring Dash 230

Product Description

The VALUE COLLECTION ZMSCS70230 is a silicone O-ring with a round cross section, sized to Dash 230 standards with a 2.5-inch inside diameter, 2.75-inch outside diameter, and 0.125-inch thickness. Rated at 70 Shore A hardness, this O-ring is manufactured from silicone compound suited for sealing applications that demand a broad operating temperature range. It performs from -80 degrees F up to 450 degrees F, making it appropriate for high-heat and wide-swing thermal environments. Plumbers, HVAC technicians, and mechanical contractors install this type of seal in fluid and gas handling assemblies where consistent compression and dimensional accuracy are required. Each package contains 10 O-rings.

This silicone O-ring is used in residential and commercial mechanical systems where exposure to wide temperature swings, dry heat, weather, and ozone is expected. It carries limited oil resistance and is compatible with oils, chemicals, and solvents in appropriate concentrations. Typical applications include pump housings, valve stems, pipe fittings, and equipment access ports in HVAC, plumbing, and light industrial service. It is not FDA approved and should not be used in food-contact or potable-water-contact applications without independent verification of suitability.

Key Features

• Silicone material with round cross section provides consistent radial compression and reliable static sealing
• Wide temperature range of -80 degrees F to 450 degrees F suits high-heat HVAC and mechanical applications
• 70 Shore A hardness rating classified as hard, resisting extrusion under moderate system pressures
• Good weather and ozone resistance extends service life in outdoor or exposed installations
• Compatible with oils, chemicals, and solvents in general mechanical service environments
• Packaged in quantities of 10 to support multi-point repairs or stocking of service vehicles

Compatibility

Designed as an OEM-style replacement or service seal for mechanical assemblies requiring a Dash 230 O-ring with 2.5-inch inside diameter, 2.75-inch outside diameter, and 0.125-inch cross-section thickness.

Installation Notes

Installation is performed by licensed plumbers, HVAC technicians, or qualified mechanical contractors. Always depressurize and isolate the system before removing the existing seal. Inspect the groove for wear, corrosion, or debris that could compromise the new O-ring seat. Avoid twisting the O-ring during installation, as torsional stress can cause premature failure at operating temperature.