TSP141 is an AS568-141 white PTFE (Teflon) 55 Shore D Back-Up Ring built to an inside diameter of 2.3 in (58.42 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.506 in (63.65 mm). In service, this back-up ring installs on the low-pressure side of an o-ring to prevent extrusion into the clearance gap at elevated pressure.
It resists solvents, strong acids and bases, and oxidizing media. PTFE (Teflon) is valued for non-stick, non-contaminating surface characteristics and near-universal chemical inertness. Rated temperature range runs from -65°F (-53.9°C) to 500°F (260°C) in continuous service.
Typical settings include laboratory equipment, semiconductor fabrication, and food and beverage.
Order part number TSP141, sold individually. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Description *2107-141 PTFE SPIRAL B/U FDA
Actual Cross Section 0.103 inch (2.62 mm)
Actual Inside Diameter 2.3 inch (58.42 mm)
Actual Outside Diameter 2.506 inch (63.65 mm)
Measurement System Imperial
Product Category O-Rings - Backup Rings