Value Collection ZMSCS70150 Silicone O-ring Dash 150

Product Description

The VALUE COLLECTION ZMSCS70150 is a Dash 150 silicone O-ring with a round cross section, designed for static and dynamic sealing applications across HVAC, plumbing, and industrial fluid systems. It measures 2.875 inches inside diameter, 3.063 inches outside diameter, and 0.094 inches thick with a hardness rating of 70 Shore A. The silicone compound gives this O-ring a wide service temperature range of -80 degrees F to 450 degrees F, making it a dependable choice where standard rubber O-rings would fail under dry heat or thermal cycling. Licensed tradespeople and MRO technicians install this part when replacing worn or damaged seals in equipment that runs hot or sees wide ambient swings.

This O-ring is suited for applications that demand good dry heat resistance, weather resistance, and ozone resistance. It carries limited oil resistance, so it is appropriate where contact with oils and solvents is minimal or controlled. Typical use cases include sealing flanges, pump housings, valve bodies, and equipment access covers in residential and light commercial HVAC systems, plumbing assemblies, and process equipment. Each purchase includes a package of 10 O-rings, which is practical for service techs who stock common seals on the truck.

Key Features

• Silicone material rated from -80 degrees F to 450 degrees F for wide-temperature-range applications
• Dash 150 standard sizing for drop-in replacement in existing grooves and ports
• Round cross section for reliable compression sealing in standard O-ring glands
• 70 Shore A hardness provides firm, durable seating without excessive deformation
• Good weather and ozone resistance for outdoor or exposed equipment
• Sold in a 10-piece package to support field stocking and batch repairs

Compatibility

Designed as a standard Dash 150 O-ring replacement compatible with equipment using 2.875-inch ID O-ring grooves per standard dimensional specifications. Compatible with oils, chemicals, and solvents at low to moderate concentrations; verify chemical compatibility before use in high-concentration solvent environments.

Installation Notes

O-ring installation is performed by plumbers, HVAC technicians, and industrial maintenance trades. Always depressurize and isolate the system before removing the old seal. Clean the gland groove of debris, old sealant, and corrosion before seating the new O-ring. Avoid twisting or stretching the O-ring during installation, as distortion reduces seal life and can cause premature failure.