Free MEP and Electrical Details

Mechanical, electrical and plumbing details: water and sewer lines, pump stations, power, lighting and controls. Every file here is public domain: open it in your browser, then download it and use it for anything.

1814 drawings · DWG, DXF, PDF, SVG, DWF and more · public domain

219 drawings in MEP & electrical · Clear all

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Electrical single-line diagram (Visio)
Single-line diagram of an office building supply: transformer, main breaker, busbar, eight feeders, generator and ATS.
5 KBDetails & download
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HVAC maintenance checklist (Word)
Quarterly preventive maintenance checklist for rooftop HVAC units, with task tables for filters, refrigeration, heating and controls.
39 KBDetails & download
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Wall hung WC plan - Plumbing and HVAC CAD Symbol
Original wall hung wc plan, 590 x 675 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 590 x 675 x 0 mm. Nominal size: 590 x 675 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
24 KBDetails & download
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Wall extractor fan - Plumbing and HVAC CAD Symbol
Original wall extractor fan, 500 x 500 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 500 x 500 x 0 mm. Nominal size: 500 x 500 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Wall basin plan - Plumbing and HVAC CAD Symbol
Original wall basin plan, 600 x 480 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 600 x 480 x 0 mm. Nominal size: 600 x 480 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
23 KBDetails & download
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Volume control damper - Plumbing and HVAC CAD Symbol
Original volume control damper, 600 x 530 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 600 x 530 x 0 mm. Nominal size: 600 x 530 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Utility sink plan - Plumbing and HVAC CAD Symbol
Original utility sink plan, 600 x 550 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 600 x 550 x 0 mm. Nominal size: 600 x 550 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
23 KBDetails & download
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Urinal plan - Plumbing and HVAC CAD Symbol
Original urinal plan, 450 x 500 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 450 x 500 x 0 mm. Nominal size: 450 x 500 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Thermostat - Plumbing and HVAC CAD Symbol
Original thermostat, 300 x 300 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 300 x 300 x 0 mm. Nominal size: 300 x 300 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
21 KBDetails & download
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Strainer symbol - Plumbing and HVAC CAD Symbol
Original strainer symbol, 700 x 400 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 700 x 330 x 0 mm. Nominal size: 700 x 400 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
23 KBDetails & download
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Square supply diffuser - Plumbing and HVAC CAD Symbol
Original square supply diffuser, 600 x 600 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 600 x 600 x 0 mm. Nominal size: 600 x 600 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Shower tray plan - Plumbing and HVAC CAD Symbol
Original shower tray plan, 900 x 900 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 900 x 900 x 0 mm. Nominal size: 900 x 900 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Round supply diffuser - Plumbing and HVAC CAD Symbol
Original round supply diffuser, 560 x 560 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 560 x 560 x 0 mm. Nominal size: 560 x 560 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Return air grille - Plumbing and HVAC CAD Symbol
Original return air grille, 600 x 300 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 600 x 300 x 0 mm. Nominal size: 600 x 300 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
23 KBDetails & download
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Pressure reducing valve symbol - Plumbing and HVAC CAD Symbol
Original pressure reducing valve symbol, 700 x 470 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 700 x 470 x 0 mm. Nominal size: 700 x 470 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Plumbing symbols A3 sheet - CAD Collection
A3 sheet with 22 individually named original CAD blocks and real sizes; DXF retains each block's 1:1 millimetre geometry. Print PDF or SVG at 1:30. Overall 12 x 8.3 x 0 m. Nominal size: A3. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
65 KBDetails & download
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Pipe tee symbol - Plumbing and HVAC CAD Symbol
Original pipe tee symbol, 700 x 440 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 700 x 440 x 0 mm. Nominal size: 700 x 440 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Pipe reducer symbol - Plumbing and HVAC CAD Symbol
Original pipe reducer symbol, 700 x 240 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 700 x 240 x 0 mm. Nominal size: 700 x 240 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Pipe flange symbol - Plumbing and HVAC CAD Symbol
Original pipe flange symbol, 700 x 360 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 700 x 360 x 0 mm. Nominal size: 700 x 360 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Pipe elbow symbol - Plumbing and HVAC CAD Symbol
Original pipe elbow symbol, 440 x 440 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 440 x 440 x 0 mm. Nominal size: 440 x 440 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Pipe cap symbol - Plumbing and HVAC CAD Symbol
Original pipe cap symbol, 350 x 180 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 385 x 180 x 0 mm. Nominal size: 350 x 180 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Pedestal basin plan - Plumbing and HVAC CAD Symbol
Original pedestal basin plan, 600 x 480 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 600 x 480 x 0 mm. Nominal size: 600 x 480 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
29 KBDetails & download
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Linear slot diffuser - Plumbing and HVAC CAD Symbol
Original linear slot diffuser, 1200 x 120 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 1200 x 120 x 0 mm. Nominal size: 1200 x 120 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
22 KBDetails & download
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Kitchen sink plan - Plumbing and HVAC CAD Symbol
Original kitchen sink plan, 800 x 480 mm graphic envelope. DXF is 1:1 in millimetres with a clean insertion origin; named A3 PDF/SVG proof included. Overall 800 x 480 x 0 mm. Nominal size: 800 x 480 mm. DXF drawing at 1:1 in millimeters with named layers; opens in AutoCAD, LibreCAD, Revit and the viewer. Export to DWG, PDF, SVG and other formats from the viewer. Drawn at nominal real-world dimensions for layout and documentation; verify against local codes and the actual product before construction. Original Innerscene model, released CC0.
24 KBDetails & download

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