Value Collection ZMSCTFE021 Ptfe O-ring Dash 021 Pack 50

Product Description

The VALUE COLLECTION ZMSCTFE021 is a Dash 021 PTFE O-ring designed for sealing applications that demand chemical resistance and wide temperature tolerance. Made from white polytetrafluoroethylene (PTFE) resin, it features a round cross section with a 0.926-inch inside diameter, a 1.063-inch outside diameter, and a 0.0625-inch (1/16 inch) thickness. PTFE material provides chemical inertness, zero water absorption, low friction, and strong dielectric strength — properties that make it suitable for demanding fluid, gas, and chemical system sealing tasks. Licensed trades including plumbers, HVAC technicians, and industrial service professionals install this type of O-ring in valves, fittings, and mechanical assemblies.

This O-ring is suited for both residential and commercial applications where standard elastomeric seals would fail due to chemical exposure, extreme temperature, or moisture. The Dash 021 sizing standard makes it a direct fit for equipment engineered to that specification. It performs across a broad temperature range, from -300 degrees F to 500 degrees F, covering cryogenic service as well as high-heat process environments. Each package contains 50 O-rings, making it practical for service technicians who stock common seal sizes for field repairs and scheduled maintenance.

Key Features

• PTFE construction offers chemical inertness and zero water absorption for harsh fluid and gas environments
• Rated from -300 degrees F to 500 degrees F for cryogenic through high-temperature service
• Round cross section in standard Dash 021 sizing for drop-in replacement compatibility
• Low friction surface reduces wear on mating surfaces in valve and fitting assemblies
• Medium hardness (55) balances sealing compression with flexibility
• Sold in a pack of 50 for bench stock and field service replenishment

Compatibility

Designed for use in valves, fittings, pumps, and mechanical assemblies requiring a Dash 021 PTFE O-ring with a 0.926-inch inside diameter and 1.063-inch outside diameter. Consult equipment service documentation to confirm Dash 021 sizing before installation.

Installation Notes

PTFE O-rings are installed by licensed plumbers, HVAC technicians, and mechanical service professionals working on valve, fitting, and fluid-handling assemblies. Always depressurize and isolate the system before removing existing seals or installing new ones. Inspect the O-ring groove for damage, debris, or scoring before seating the new ring. PTFE does not require lubricant for installation, but verify compatibility with any lubricant used on mating components.