Description General description For precise flow-monitoring of liquids and gases. Clear PC safety shield permits use at high temperatures and pressures. Fluid contacts PTFE body, borosilicate glass tube, Viton® O-rings, and floats (glass, 316 SS, or ruby). NPT-male end bushings are PP with PTFE inserts that accept flexible hose. For high-purity applications, order PTFE coupling adapters to prevent fluids from contacting the bushings. Accurate: ±5% of the reading or ±2 mm of the scale length (scale = 100 divisions). Take direct air and water readings without calibration curves. An "R factor" chart and formulas are included to convert scale readings for other fluids or for floats other than glass. Accepts 3/8 in. I.D. tubing (sizes 14 and 15 accept 5/8 in. I.D. tubing). Note: Flow rates are at standard temperature and pressure (20°C and 14.7 psi). Legal Information Gilmont is a registered trademark of Gilmont Instruments, Inc. Viton is a registered trademark of E. I. du Pont de Nemours and Company