Plumbing Blueprint Symbols Chart & Editor

Standard abbreviations include: WC = Water Closet (Toilet), LAV = Lavatory (Sink), CO = Cleanout, VTR = Vent Through Roof, WH = Water Heater, CW = Cold Water, HW = Hot Water, FD = Floor Drain, FCO = Floor Cleanout, PRV = Pressure Reducing Valve, and BFP = Backflow Preventer.

On blueprints, plumbing pipes use specific line types: Cold water is drawn as a continuous line with single dots (— • —), hot water with double dots (— • • —), sanitary drainage with heavy solid lines, and vent piping with broken dashed lines.

Yes, all vector symbols in this tool follow ASME/ANSI drafting conventions recognized by municipal building departments for residential and light commercial permit submissions.

FCO stands for Floor Cleanout, which is a flush-mount accessible cleanout cover set level with finished floors to allow drain auger and sewer camera access.

A Backflow Preventer (BFP / RPZ) is shown as two opposing check valve triangles with a center relief valve discharge port symbol.

Yes. In the drawing canvas above, you can drag and drop any blueprint symbol, position walls, route pipes, and export completed blueprints directly.