High Purity Fluoropolymer Needle Valve Series LVN Caution 1. Connect tubing with special tools. Refer to the pamphlet “High-Purity Fluoropolymer Fittings Hyper fitting/Series LQ1, 2 Work Procedure Instructions” (M-E05-1) for connecting tubing and special tools. (Downloadable from our web site.) 2. Tighten the nut to the end surface of the body. As a guide, refer to the proper tightening torques shown below. Tightening torque for piping Body class 1.5 to 2.0 3.0 to 3.5 7.5 to 9.0 2 3 4 Torque (N.m) Piping Specific Product Precautions Body class Note) Refer to page 788 for information on changing tubing sizes. �ｱ Basic size �� With reducer 2 3 4 4 6 8 10 12 1/8" 3/16" 1/4" 3/8" 1/2" �� �ｱ �� �� Metric sizes Inch sizes �ｱ �� �ｱ �� �� �ｱ �� �ｱ �� �ｱ Tubing O.D. Different Diameter Tubing Applicable with Reducer Standard Specifications Model LVN20 LVN30 LVN40 4, 6 1/8", 3/16", 1/4" o4.4 12 0.5 0.055 6, 8, 10 1/4", 3/8" o8 33.6 1.4 1 0 to 0.5 5 to 90 0 to 60 0.115 10, 12 3/8", 1/2" o10 52.8 2.2 0.185 Tubing O.D. Note) Metric size Inch size Orifice diameter Flow characteristics Av x 10-6m2 Cv Withstand pressure (MPa) Operating pressure (MPa) Fluid temperature (°C) Ambient temperature (°C) Weight (kg) Different diameter tubing can be selected (within a body class) by using a nut and Be sure to read before handlings. insert bushing (reducer). Applicable fitting: LQ2 Refer to front matter 41 for Safety Instructions. Number of needle rotations Flow rate (L/min) Number of needle rotations Flow rate (L/min) Number of needle rotations Flow rate (L/min) Differential pressure Differential pressure Differential pressure Flow Characteristics (Fluid: Water) LVN20 LVN30 LVN40 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 0 2 4 6 8 10 ΔP0.01MPa ΔP0.03MPa ΔP0.05MPa 0 2 4 6 8 10 0 1 2 3 4 5 6 7 8 ΔP0.01MPa ΔP0.05MPa ΔP0.03MPa 0 2 4 6 8 10 0 2 4 6 8 10 12 14 ΔP0.01MPa ΔP0.05MPa ΔP0.03MPa Note) For details of the applicable tubing sizes, refer to page 823. 817 LVC LVA LVH LVD LVQ LVP LVW LQ1 LQ3 LVN LQHB TL TIL TLM TILM TD TID TH TIH