HellermannTyton 251-30309 PTFE Insulating Sleeve, White, 4.3 mm ID, 5.7 mm OD

This PTFE insulating sleeve stands out for its exceptional temperature range from -200 °C to +260 °C, making it suitable for extreme environments where standard sleeving fails. The white polytetrafluoroethylene construction offers excellent chemical and UV resistance, ensuring long-term reliability in demanding applications.

Highlights

• Material: Polytetrafluoroethylene (PTFE)
• Colour: White
• Inner diameter: 4.3 mm
• Outer diameter: 5.7 mm
• Temperature range: -200 °C to +260 °C
• Dielectric strength: > 50 kV/mm
• Flame retardancy: Self-extinguishing (UL 224 VW-1)
• Halogen-free

In daily use

The sleeve provides reliable electrical insulation and mechanical protection for wires and cables in high-temperature, chemically aggressive, or UV-exposed settings. Its high flexibility and very low moisture absorption make it easy to install and maintain performance over time.

Full specifications

• Product type: Insulating Sleeve
• Wall thickness: 0.7 mm
• Chemical resistance: Excellent
• UV resistance: Excellent
• Abrasion resistance: Good
• Flexibility: High
• Moisture absorption: Very low
• Standards met: MIL-I-22129, UL 224 VW-1
• Application: Electrical insulation, mechanical protection, high-temperature, chemical protection
• Shrink ratio: Non-shrinkable

Final note

A dependable choice for engineers needing a non-shrinkable, high-performance insulating sleeve in white PTFE.