CAD Drawings The CAD drawings provided represent typical installation layouts. Please contact ONICON's sales office at (727) 447-6140 or email for assistance. CAD Drawing Description File Type To download file, right-click on the File Type link and select "Save Target As..." Insertion Turbine Flow Meter Installation .dwg version F-3500 Flow Meter Installation .dwg version Vortex Flow Meter Installation .dwg version F-3100 Flow Meter Installation .dwg version F-3200 Flow Meter Installation .dwg version System-10 BTU Meter Installation Layout .dwg version System-30 BTU Meter Installation Layout .dwg version Hot Tap Thermowell .dwg version