Patent AT-E400760-T1: [Translated] SYSTEM AND METHOD FOR USING BENT TUBES IN A HIGH PURITY LIQUID TREATMENT SYSTEM

A novel method (500) for bending tubes (102; 410; 412; 414) suitable for use in high-purity fluid handling systems (400) includes selecting (502) a tube (102; 410; 412; 414) made from a material having a grain-size number of at least 5, and forming (504) a bend (104) in the tube with a bend radius (108) of greater than 1.5 times the diameter of the tube (102; 410; 412; 414). Tubes (102; 410; 412; 414) bent according to the present invention are incorporated into high-purity systems (400) as supply lines, product lines, and vacuum forelines, without the need for post-bend heat treatment or polishing (Fig. 5).