Crushproof Plastic Vacuum Hose This type of plastic vacuum hose is spiral wound from a plastic profile and although relatively smooth inside, does have a slight separation between the profiles. The blend of polyethylene plastic used to make this vacuum hose generally provides good resistance to most chemical and petroleum products. The average working temperature range of this hose is neg 65 degree F to pos 140 degree F. The minimum bend radius will vary depending on the profile used to make the hose but generally ranges around two inches. The negative and positive pressure rating will also vary depending on the profile used to make the hose but for 1-1/2 inch inside diameter hose is approximately 20 inch HG negative and 20 PSI positive pressure.
The vacuum hose classification of light, medium, or heavy duty is dependent on inside diameter and hose usage.