Three high-temperature grades for 150 to 175 °C continuous service, beyond the 105 °C limit of standard polyolefin tubing.
| Models | HTR-S silicone / HTR-F fluororubber / HTR-P HT polyolefin |
|---|---|
| Shrink ratio | 2:1 |
| Recovered wall | 0.50–1.20 mm by size |
| Operating temp | -55 to +175 °C |
| Standards | UL 224, IEC 60684, ASTM D2671, RoHS |
Standard radiation-crosslinked polyolefin tubing is rated for continuous service at 105 °C. Near heaters, engines, transformers and high-current busbars, conductor and ambient temperatures can exceed this limit for long periods, and ordinary tubing embrittles. The high temperature line extends our crosslinked polyolefin platform with two specialty elastomer grades, silicone and fluororubber, for continuous service at 150 to 175 °C.
HTR-P is a high-temperature crosslinked polyolefin for 150 °C service. HTR-S is a silicone grade rated to 175 °C with the best low-temperature flexibility. HTR-F uses fluororubber (FKM) for 175 °C service where oils, fuels and hydraulic fluids are present. Our existing polyolefin grades already pass 158 °C×7-day oven aging and 250 °C×4 h heat-shock tests in production quality control, and the new grades are specified against the same test regime.
| Size | Expanded ID (mm) | Recovered ID (mm) | Wall (mm) | Spool (m) |
|---|---|---|---|---|
| Φ3.0 | 3.4 ±0.3 | 1.4 ±0.1 | 0.50 ±0.10 | 100 |
| Φ6.0 | 6.4 ±0.4 | 2.8 ±0.2 | 0.60 ±0.10 | 100 |
| Φ10 | 10.5 ±0.4 | 4.8 ±0.2 | 0.70 ±0.10 | 100 |
| Φ16 | 16.5 ±0.5 | 7.7 ±0.3 | 0.80 ±0.10 | 100 |
| Φ20 | 21.0 ±0.5 | 9.7 ±0.3 | 0.90 ±0.10 | 50 |
| Φ30 | 30.8 ±0.8 | 14.0 ±1.0 | 1.00 ±0.15 | 25 |
| Φ50 | 51.0 ±1.0 | 24.0 ±1.0 | 1.20 ±0.15 | 25 |
Standard color: black. Custom colors available — contact our sales team.
Insulation for conductors routed close to heaters, ovens and industrial furnaces at up to 175 °C.
HTR-F fluororubber covers fuel and oil lines and wiring in engine compartments.
Thermal protection on connections where continuous loading heats conductors above 105 °C.
Still deciding? Contact our engineers.
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