Polyethylene balls are practically nonabsorbent. HDPE won’t swell when exposed to moisture. It’s denser and more rigid than LDPE, plus more chemical resistant. Polyethylene balls often used in check valves, relief valves, and float valves, these balls won’t swell when exposed to water. Polyethylene balls offer good chemical resistance.
| Trade names: | Hostalen, Lupolen, Vestolen, Alathon, Stamylan |
| Diameter range: | 1,588 mm – 304,8 mm |
| Grades: | I – III |
| Shore-Hardness: | 64 (D) |
| Density: | 0,940 g/cm³ |
| Temperature resistance: | < 100 °C |
| Colours: | upon request |