Unisource now offers the ideal flexible pigtail for use with small molecule gases. Style TSCZEL Tefzel ETFE pigtails offer permeation rates far lower than standard PTFE pigtails, with a cost that is a fraction of that of welded all-stainless steel pigtails.
Style TSCZEL pigtails are used throughout the industry in the filling of helium and hydrogen cylinders and can also be used for many other high-pressure gases. (Contact Unisource for specific gas compatibility).
Smooth bore, medium-pressure ETFE tubing is protected by an exterior stainless steel braid. Standard Style TSCZEL pigtails are rated for 3000 PSIG maximum working pressure. Special order styles include ratings of 3600 PSIG and 5000 PSIG. Style TSCZEL Tefzel hose has a temperature range of -100°F to 250°F. Like standard PTFE pigtails, it offers extreme flexibility and light-weight characteristics. Options include end fittings of brass or stainless steel and configurations of 1/4” FNPT, 1/4” FNPT swivel, 1/4” MNPT, and an assortment of other fittings equal to those offered for standard PTFE pigtails. For additional safety, these pigtails can be manufactured with our stainless steel anti-whip, anti-kink armor casing. In addition, CGA nut and nipple combinations can be factory installed, along with options such as check valve nipples, hand-tight adapters, elbows, and other adapters. Style TSCZEL pigtails are degreased, 100% tested to 1-1/2 times the working pressure, and ready for installation. Not recommended for oxygen service. Tefzel is a trademark of E.I. duPont Nemours & Co.