# Mechanical Drawing Symbols

Working as a mechanic being responsible for making the appropriate drawings, including technical ones, working with ventilating, heating or air conditioning, you may find it exhausting creating all of schemes by hand using the ruler, for example. In this case we can recommend to download ConceptDraw DIAGRAM which is professional software that can make your life simpler and help you to achieve your goals at work in your business.

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 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.

**Example 1.** Mechanical Drawing Symbols — Fluid Power Equipment Library

Mechanical Engineering Solution offers 602 commonly used mechanical drawing symbols and objects which are professionally designed and grouped in 8 libraries:

- 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.

- Dimensioning and Tolerancing
The vector stencils library "Dimensioning and Tolerancing" contains 45 symbols of geometric dimensions and mechanical tolerances, geometric symbols, callouts, and text boxes and inserts. Use these geometric dimensioning and tolerancing shapes to create annotated mechanical drawings.

- 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:

- create new ConceptDraw document,
- drag the required objects from the libraries,
- arrange and connect these objects,
- type the text and apply colors, if needed.

**Example 3.** Mechanical Engineering Diagram — Hydraulic Circuits

This mechanical engineering diagram was created in ConceptDraw DIAGRAM software using the mechanical drawing symbols from the libraries of Mechanical Engineering Solution and shows the schemes of hydraulic circuits. An experienced user spent 25 minutes creating this sample.

Use the Mechanical Engineering Solution for ConceptDraw DIAGRAM software to create your own mechanical engineering diagrams quick, easy and effective.

All source documents are vector graphic documents. They are available for reviewing, modifying, or converting to a variety of formats (PDF file, MS PowerPoint, MS Visio, and many other graphic formats) from the ConceptDraw STORE. The Mechanical Engineering Solution is available for all ConceptDraw DIAGRAM or later users.

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