Value Collection TEV80129 O-ring Dash 129 Ptfe Viton

Product Description

The VALUE COLLECTION TEV80129 is a Dash 129 O-ring constructed with a polytetrafluoroethylene (PTFE)-encapsulated Viton core. This round cross-section seal measures 1.563 inches inside diameter and 1.75 inches outside diameter, with a thickness of 0.0937 inches (3/32 inches). The PTFE outer layer provides chemical inertness and broad fluid compatibility, while the Viton core delivers elasticity and resilience. Rated hard at 80 Shore A hardness, this O-ring handles a working temperature range of -75 degrees F to 400 degrees F. It is commonly installed by plumbers, HVAC technicians, and industrial mechanics wherever a chemically resistant static or dynamic face seal is required.

This O-ring is suited for use in fluid handling systems, chemical processing lines, refrigeration and HVAC equipment, and instrumentation assemblies where exposure to aggressive media, high temperatures, or wide thermal swings demands more than a standard nitrile or EPDM seal. The PTFE encapsulation makes it appropriate for applications involving acids, solvents, fuels, and steam that would degrade uncoated elastomers. Sold individually, this part fits standard Dash 129 groove dimensions per AS568 sizing conventions.

Key Features

• PTFE-encapsulated Viton construction provides superior chemical resistance compared to uncoated elastomers
• Wide service temperature range from -75 degrees F to 400 degrees F
• 80 Shore A hardness rating for firm sealing under pressure
• Round cross-section profile seats cleanly in standard Dash 129 O-ring grooves
• Black color for visual identification against most sealing surfaces
• Sold as individual unit with no minimum order quantity above one piece

Compatibility

Designed as a direct-fit replacement for any application requiring a Dash 129 O-ring with a 1.563 inches inside diameter and 1.75 inches outside diameter per AS568 standard groove specifications.

Installation Notes

Installation of O-rings should be performed with the system fully depressurized and, where applicable, drained of fluid. Lubricate the O-ring with a compatible lubricant before seating to prevent tearing during assembly. Avoid using metal tools that can nick or score the sealing surface or the O-ring itself. Verify that the mating groove dimensions conform to Dash 129 specifications before installation.