Abstract
The Safe Protector is a spiral - shaped sheath fabricated from polypropylene (PP), polyethylene (PE), or nylon (PA) through a hot - winding extrusion process. It represents a new - generation product that substitutes traditional metal protective springs in the field of hose protection. 

Spiral Safe Protector
The Safe Protector is a spiral - shaped sheath manufactured from polypropylene (PP), polyethylene (PE), or nylon (PA) through a hot - winding molding extrusion process. It is a novel product that replaces traditional metal protective springs for hose protection.

 Quality Distinguishing Standards of Safe Protector
1. Appearance Inspection
   - A high - quality Safe Protector should have a smooth and flat surface. There should be no material shortages, cracks, damage, or burrs. Additionally, it should be free from obvious blistering, unevenness, impurities, and color variegations. Any deviation from these standards indicates an inferior and unqualified product.
2. Hardness Requirement
   - The hardness of a high - quality and qualified Safe Protector typically ranges from 85 to 90 degrees on the Shore scale. A hardness below 85 degrees fails to provide sufficient protection and restraint for the internal products. If the hardness is too high, especially when used in low - temperature environments (such as cold regions like Northeast China), the Safe Protector is prone to embrittlement. If the deviation from the standard hardness is within 1% - 5%, it still cannot meet the usage requirements, significantly reducing the protection of the internal product.
3. High and Low - Temperature Resistance Test
   - A high - quality and qualified Safe Protector should exhibit excellent high and low - temperature resistance. Users can identify this by the following method: Place the Safe Protector at 80°C for 1 hour, then at room temperature for 0.5 hours, followed by - 40°C for 1 hour, and then back to room temperature for 0.5 hours. Repeat this cycle five consecutive times. If the Safe Protector shows no cracks, stickiness, dents, etc., it is of good quality. Otherwise, it is of inferior quality.
4. Oil Resistance Test
   - A high - quality and qualified oil - resistant Safe Protector has good oil resistance. The Safe Protector can be soaked in a mixture of 70# gasoline and 10% toluene for 5 minutes. If there is no discoloration or stickiness, it is considered qualified.
5. Anti - ultraviolet Performance
   - The Safe Protector has good anti - ultraviolet capabilities. The black Safe Protector, in particular, is produced by adding a certain proportion of carbon black to enhance its anti - ultraviolet ability. This is why the black Safe Protector offers better UV resistance compared to Safe Protectors of other colors.
6. Antistatic Performance
   - Safe Protector are mainly used in excavators, loaders, rollers, pavers, forklifts, cranes, pumping machinery, and other construction machinery, as well as injection - molding machine equipment and for the external protection of cables. When operating in underground or dry environments, it is advisable to choose a Safe Protector with strong antistatic properties. This can enhance the antistatic performance of internal products such as hydraulic pipe fittings and play a better safety - protection role for hydraulic pipes in various harsh environments.