Value Collection ZMSCS70224 Silicone O-ring Dash 224 50pk

Product Description

The VALUE COLLECTION ZMSCS70224 is a Dash 224 silicone O-ring with a round cross section, designed for static and dynamic sealing applications across HVAC, plumbing, and industrial fluid systems. It measures 1.75 inches inside diameter, 2 inches outside diameter, and 0.125 inches thick. Made from silicone with a Shore A hardness of 70, this O-ring is rated for service from -80 degrees F to 450 degrees F, making it a reliable choice where wide temperature range performance and dry heat resistance are required. It arrives in a package quantity of 50 rings, suited for bench stock or service van inventory.

This O-ring is appropriate for residential and light commercial HVAC equipment, plumbing assemblies, pump housings, and fluid handling systems where sealing against oils, chemicals, and solvents is needed. Its silicone compound offers good weather and ozone resistance, making it usable in both indoor and outdoor mechanical environments. Licensed technicians and journeymen plumbers typically use Dash 224 O-rings when servicing valve bodies, union connections, filter housings, and similar components that see elevated or cycling temperatures.

Key Features

• Silicone compound rated from -80 degrees F to 450 degrees F for wide temperature range service
• Shore A hardness of 70 provides a firm, resilient seal under compression
• Round cross section in standard Dash 224 sizing for straightforward groove fitment
• Good weather and ozone resistance extends service life in outdoor or exposed installations
• Compatible with oils, chemicals, and solvents in typical trade sealing applications
• Package of 50 supports bulk stocking for service operations

Compatibility

Designed as a standard Dash 224 O-ring replacement for any groove or port machined to accept a 1.75 inches ID by 2 inches OD by 0.125 inches thick round-cross-section seal in HVAC, plumbing, or fluid-handling equipment.

Installation Notes

De-energize or shut off fluid flow and relieve system pressure before removing any fitting, valve, or housing that retains this O-ring. Inspect the groove for burrs, scoring, or residual sealant before seating the replacement ring. Silicone O-rings should be installed dry or with a compatible silicone-based lubricant only — petroleum-based greases can degrade silicone over time. Work performed on pressurized systems must comply with applicable mechanical and plumbing codes.