The vector stencils library "HVAC ductwork" contains 55 ducts, vents and HVAC mechanical components symbols. 
Use the design elements library "HVAC ductwork" for drawing the HVAC ductwork system diagrams, heating, ventilation, air conditioning, refrigeration, automated building control and environmental control system layout floor plans.
"Ducts are used in heating, ventilation, and air conditioning (HVAC) to deliver and remove air. These needed airflows include, for example, supply air, return air, and exhaust air. Ducts also deliver, most commonly as part of the supply air, ventilation air. As such, air ducts are one method of ensuring acceptable indoor air quality as well as thermal comfort.
A duct system is often called ductwork. Planning ('laying out'), sizing, optimizing, detailing, and finding the pressure losses through a duct system is called duct design." [Duct (HVAC). Wikipedia]
The shapes library "HVAC ductwork" is included in the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
                        
                                                
                    Use the design elements library "HVAC ductwork" for drawing the HVAC ductwork system diagrams, heating, ventilation, air conditioning, refrigeration, automated building control and environmental control system layout floor plans.
"Ducts are used in heating, ventilation, and air conditioning (HVAC) to deliver and remove air. These needed airflows include, for example, supply air, return air, and exhaust air. Ducts also deliver, most commonly as part of the supply air, ventilation air. As such, air ducts are one method of ensuring acceptable indoor air quality as well as thermal comfort.
A duct system is often called ductwork. Planning ('laying out'), sizing, optimizing, detailing, and finding the pressure losses through a duct system is called duct design." [Duct (HVAC). Wikipedia]
The shapes library "HVAC ductwork" is included in the HVAC Plans solution from the Building Plans area of ConceptDraw Solution Park.
Building Drawing Software for Design Registers, Drills and Diffusers
Use the appropriate stencils from Registers, Drills and Diffusers library for create building plans. 
                                    Building Drawing Software for Design Shipping and Receiving
For create port terminal plans use the appropriate stencils from shipping and receiving library. 
                                    -  Ducting Drawing Symbols 
-  Drawing Symbols  For Diffuser In  Ducting 
-  Ducting Symbol 
-  Ducting Symbols 
- Mechanical  Drawing Symbols  | Design elements - HVAC  ductwork  ...
-  Ductwork Symbols 
- HVAC Plans |  Ducting  Circle Simbol  Drawing 
- Mechanical  Drawing Symbols  | Process Flowchart | Design ...
- Building  Drawing  Software for Design Registers, Drills and Diffusers ...
-  Ducting Drawing  Image
- Mechanical  Duct Symbols 
- How to Create a HVAC Plan | Building  Drawing  Software for Design ...
- Process Flowchart | Design elements - HVAC  ductwork  | Mechanical ...
- Mechanical  Drawing Symbols  | Mechanical Engineering ...
-  Symbol  Of Air  Duct  Grill In Hvac  Drawing 
- Design elements - HVAC  ductwork  |  Ductwork  layout | HVAC ...
- Package Ac  Ducting  Section  Drawings  Images
-  Duct Drawing  All  Symbol  Name
- Hvac Supply Return  Drawing Symbols 

 
                                     
                                     
                             
                             
                             
                            