Lightweight transparent smooth-walled hose made of natural (non-regenerated) fluoropolymer PFA (perfluoroalkoxy), a material with properties similar to PTFE. The hose features excellent chemical resistance, dimensional and shape thermal stability, a very smooth, micropore-free internal and external surface, high pressure resistance, and crack resistance due to excessive stress. Good transparency of the hose allows for easy observation of level or flow. UV resistant. Designed for low-pressure installations of aggressive chemicals or when high purity and chemical inertness of the hose material are required. Commonly used in laboratories, chemical and pharmaceutical industries. Due to its excellent insulating properties (dielectric strength 3 to 4 times greater than PTFE), it is used in the electronics and semiconductor industries. The hose is not antistatic (does not dissipate electric charges for non-conductive substances). Not recommended for pneumatic plug connections. Flame retardant (UL94 V-0) and with a high oxygen index (LOI). Safety factor n = 4:1. The burst and working pressure of the hose decreases at operating temperatures above 20°C and is dependent on its height. Hose material: PFA. Shore hardness (D) 60. Operating temperature: from -200°C to +260°C. Working pressure: from 7 bar to 19.5 bar – depending on the diameter and wall thickness of the hose.