Value Collection ZMSCS70227 Silicone O-ring Dash 227 10-pack

Product Description

The VALUE COLLECTION ZMSCS70227 is a round-cross-section silicone O-ring in the standard Dash 227 size, packaged in a quantity of 10. It measures 2.125 inches inside diameter, 2.375 inches outside diameter, and 0.125 inches thick, with a hardness rating of 70 Shore A. Silicone compound gives this O-ring a broad service temperature range of -80 degrees F to 450 degrees F, making it well suited for applications that demand reliable sealing under dry heat, wide thermal cycling, or outdoor exposure. Plumbers, HVAC technicians, and industrial maintenance professionals install this type of seal where standard nitrile or EPDM compounds fall short on temperature performance.

The ZMSCS70227 is appropriate for static and low-dynamic sealing applications involving exposure to oils, chemicals, and solvents within the material's rated limits. Typical install scenarios include HVAC equipment flanges, plumbing fittings, pump housings, and general mechanical assemblies where a Dash 227 groove has been machined or specified. Good weather and ozone resistance makes it a practical choice for rooftop equipment and outdoor installations. The package quantity of 10 suits service stock or small-batch assembly work. Note that oil resistance for silicone is limited compared to nitrile compounds; verify fluid compatibility before use.

Key Features

• Silicone compound rated from -80 degrees F to 450 degrees F for wide thermal range service
• Dash 227 standard sizing: 2.125 inches ID, 2.375 inches OD, 0.125 inches thick
• 70 Shore A hardness for firm, consistent sealing in static groove applications
• Good weather and ozone resistance — suitable for outdoor and rooftop equipment
• Compatible with oils, chemicals, and solvents within rated limits; limited oil resistance compared to nitrile
• Packaged 10 per order for service stock convenience

Compatibility

Designed as a standard Dash 227 O-ring replacement for any groove machined or specified to the Dash 227 dimension standard. Verify groove dimensions and fluid compatibility with the silicone compound before installation.

Installation Notes

Install by a qualified mechanic, plumber, or HVAC technician following the equipment manufacturer's assembly procedures. Shut down and depressurize the system completely before removing the old O-ring and seating the replacement. Inspect the groove for burrs, corrosion, or damage before installing the new ring; a damaged groove will cause premature seal failure. Confirm that the sealing fluid is compatible with silicone compound before placing the system back in service.