Value Collection ZMSCS70222 Silicone O-ring Dash 222

Product Description

The VALUE COLLECTION ZMSCS70222 is a silicone O-ring designed for static and dynamic sealing applications across HVAC, plumbing, and industrial systems. It features a 1.5-inch inside diameter, a 1.75-inch outside diameter, and a 0.125-inch thickness with a round cross section. The durometer hardness is rated at 70, placing it in the hard hardness range. Silicone compound provides reliable performance across a wide temperature range, from -80 degrees F to 450 degrees F, making it well suited for applications where standard nitrile or EPDM materials fall short. Sold in a package quantity of 50 units.

This O-ring is used in systems that require sealing against oils, chemicals, and solvents, with particular strength in dry heat resistance, weather resistance, and ozone resistance. It is commonly installed in HVAC equipment, hydronic systems, refrigeration assemblies, and industrial fluid-handling components where wide temperature cycling is a regular service condition. Note that oil resistance is limited with silicone compound, so verify fluid compatibility before installation in high-oil environments.

Key Features

• Silicone material rated for -80 degrees F to 450 degrees F operating range
• Round cross section, 0.125-inch thickness for standard groove fitment
• 70 durometer hardness for firm compression sealing
• Dash 222 standard sizing for drop-in replacement use
• Good weather and ozone resistance for outdoor or exposed installations
• Compatible with oils, chemicals, and solvents — limited oil resistance; verify application before use

Compatibility

Designed as a standard Dash 222 O-ring replacement for any groove or port dimensioned to accept a 1.5-inch ID, 1.75-inch OD, 0.125-inch cross section seal in silicone compound.

Installation Notes

O-rings of this type are installed by licensed HVAC technicians, plumbers, and industrial maintenance professionals. Always depressurize and drain the system before removing old seals or installing new ones. Inspect the mating groove for burrs, scoring, or corrosion that could compromise the seal. Avoid stretching the O-ring excessively during installation; use an appropriate silicone-compatible lubricant to seat it properly without twisting the cross section.