Engineering Drawing: Symbolic Representation

Mechanical Drawing Symbols

Mechanical systems drawing is a type of technical drawing that shows information about heating, ventilating, and air conditioning. It is a powerful tool that helps analyze complex systems. These drawings are often a set of detailed drawings used for construction projects; it is a requirement for all HVAC work. They are based on the floor and reflected ceiling plans of the architect. After the mechanical drawings are complete, they become part of the construction drawings, which is then used to apply for a building permit. They are also used to determine the price of the project.

ConceptDraw DIAGRAM v12 diagramming and vector drawing software extended with Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park provides a set of drawing tools and predesigned mechanical drawing symbols for fast and easy design various mechanical engineering diagrams, drawings and schematics.

Bearings
The vector stencils library "Bearings" contains 59 symbols of ball bearings, roller bearings, shafts, springs, gears, hooks, spindles, and keys. Use it to design engineering drawings of machine tools and mechanical devices.

Fluid Power - Equipment he vector stencils library "Fluid Power Equipment" contains 113 symbols of hydraulic and pneumatic equipment including pumps, motors, air compressors, cylinders, meters, gauges, and actuators. Use it to design fluid power and hydraulic control systems.
Fluid Power - Valves The vector stencils library "Fluid Power Valves" contains 93 symbols of pre-made hydraulic and pneumatic valves, including directional control valves, flow control valves, pressure control valves, and electrohydraulic and electropneumatic valves.
Hydraulic Pumps and Motors The vector stencils library "Hydraulic Pumps and Motors" contains 74 symbols of hydraulic pump vector stencils, hydraulic motor symbols for engineering drawings of fluid power and hydraulic control systems.
Pneumatic Pumps and Motors The vector stencils library "Pneumatic Pumps and Motors" contains 39 symbols of pneumatic pumps, motors and pump-motors for designing the engineering drawings of pneumatic circuits.
Valve Assembly The vector stencils library "Valve Assembly" contains 141 symbols of pressure and flow regulators, flow direction indicators, controls, and symbols to design flow paths of control valves. Use these valve assembly shapes to design the engineering drawings of hydraulic and pneumatic valve assemblies in fluid power systems.
Welding The vector stencils library "Welding" contains 38 welding joint symbols to identify fillets, contours, resistance seams, grooves, surfacing, and backing. Use it to indicate welding operations on working drawings.

All these predesigned objects are vector, so you can resize them without loss of quality, change their color to make your mechanical drawing more interesting, bright and attractive.

Example 2. Mechanical Drawing Symbols - Pneumatic Pumps and Motors Library
To design your own Mechanical Drawing in minutes, follow the next steps: