Confined Space Ventilation Ducting


Confined space ventilation ducts are designed for use with confined space fans for providing fresh air supply and ventilating hazardous gases & fumes from basements, manholes and chemical processing... Read More

StyleModelLengthDiameterColorPrice (inc. GST)
ASVH-CND866 ft.8"Black SGD 223.70
ASVH-CND81515 ft.8"Black SGD 396.78
ASVHCND121515 ft.12"Black SGD 851.81
ASVH-CND82525 ft.8"Black SGD 581.55
ASVHCND122525 ft.12"Black SGD 988.44
StyleModelLengthDiameterConstructionColorPrice (inc. GST)
ASVH-33 ft.8"Vinyl and PolyesterYellow SGD 91.46
ASVH-66 ft.8"-Yellow SGD 158.90
ASVH-506 ft.8"PVCYellow SGD 738.72
ASVH-121515 ft.12"-Yellow SGD 406.97
ASVH-1515 ft.8"-Yellow SGD 281.80
ASVH-2525 ft.8"-Yellow SGD 331.56
ASVH-122525 ft.12"-Yellow SGD 582.36

Lay Flat Disposable Ductings

StyleModelDiameterPrice (inc. GST)
ASVH-LF88" SGD 729.28
BSVH-LF8C8" SGD 3487.44
ASVH-LF1212" SGD 1093.77
ASVH-LF1616" SGD 1709.27

Ventilation Ducts, PVC, Vinyl Coated Polyester Construction

Americ ventilation ducts direct fumes & foul air outside and draws fresh air into enclosed spaces. They feature PVC, vinyl coated polyester construction to withstand UV-radiation, humidity & extreme environmental conditions and can easily connect to ventilator fans or blower lips for negative or positive airflow. Further, these UL-listed ducts have easy retractable Schafer duct hoses to handle large volumes of air at low pressures and can collapse into the conveniently attached carrying bags. They are integrated with quick connect couplers, reducing media spillage and are available in lengths of 15 & 25 inches.
Raptor Supplies also offers Americ Disposable Ventilation Duct that can be cut in the lengths as required.

StyleModelLengthDiameterConstructionPrice (inc. GST)
AGAM-DS081515ft.8"PVC Vinyl Coated Polyester SGD 182.83
AGAM-DS121515ft.12"PVC Vinyl Coated Polyester SGD 215.26
BGAM-DS1225CB25ft.12"PVC Vinyl Coated Polyester SGD 438.22
BGAM-DS0825CB25ft.8"PVC Vinyl Coated Polyester SGD 338.62
AGAM-DS122525ft.12"PVC Vinyl Coated Polyester SGD 408.25
AGAM-DS082525ft.8"PVC Vinyl Coated Polyester SGD 264.73
AGAM-DS202525ft.20"PVC Vinyl Coated Polyester SGD 757.15
StyleModelLengthDiameterConstructionColorPrice (inc. GST)
AGAM-DDISP500500ft.12"PolyethyleneClear SGD 577.46
AGAM-DDISP500FR500ft.12"PolyethyleneClear SGD 775.47

Ventilation Ducts

StyleModelLengthDiameterConstructionColorPrice (inc. GST)
AFDT-21624046BR15ft.8.5"2-Ply Flame Retardant Polyvinyl with Polyester Reinforcement, End Finish: Cinch Belt x RingYellow SGD 329.26
BFDT-1215CBB15ft.12"Antistatic-2-Ply Flame Retard. PVC on Polyester Fabric-End Finish, Cinch Belt x Cinch BeltBlack SGD 1130.40
AFDT-30534005BB16ft.12"2-Ply Flame Retardant Polyvinyl with Polyester Reinforcement, End Finish: Cinch Belt x Cinch BeltYellow SGD 542.91
BFDT-1225CBB25ft.12"Antistatic-2-Ply Flame Retard. PVC on Polyester Fabric-End Finish, Cinch Belt x Cinch BeltBlack SGD 1832.11
BFDT-1625CBR25ft.16"Antistatic-2-Ply Flame Retard. PVC on Polyester Fabric-End Finish, Cinch Belt x RingBlack SGD 2187.85
AFDT-21624076BR25ft.8.5"2-Ply Flame Retardant Polyvinyl with Polyester Reinforcement, End Finish: Cinch Belt x RingYellow SGD 533.58
AFDT-1625BR25ft.16"2-Ply Flame Retardant Polyvinyl with Polyester Reinforcement, End Finish, Cinch Belt x RingYellow SGD 866.95

Standard Duct

StyleModelPrice (inc. GST)
AFDT-1615BR SGD 391.73
AFDT-1625BR SGD 686.66
AFDT-21624046BR SGD 245.40
AFDT-21624076BR SGD 416.50
AFDT-30534005BB SGD 405.24
AFDT-30534010BB SGD 668.65

Disposable Duct

StyleModelPrice (inc. GST)
AFDT-12DISP100 SGD 200.37
AFDT-16DISP100 SGD 315.19

Reinforced Duct

StyleModelPrice (inc. GST)
AFDT-0825CR SGD 418.75
AFDT-1215CBB SGD 796.98
AFDT-1225CBB SGD 1312.53
AFDT-1615CBR SGD 907.29
AFDT-1625CBR SGD 1542.17
BFDT-081207BB SGD 508.80

Pressure Duct

StyleModelPrice (inc. GST)
AFDT-1810MSR SGD 670.90
BFDT-185MSR SGD 391.73

Quick Couple Canister

StyleModelPrice (inc. GST)
AED7004CL SGD 461.53
AED7004CS SGD 393.99
BEF7004CL SGD 2030.71
BEF7004CS SGD 1542.17

Quick Couple Long Canister

StyleModelPrice (inc. GST)
AED7004CL/DS SGD 715.93
BEF7004CL/DS SGD 1967.68
StyleModelLengthPrice (inc. GST)
AFDT-0815CBB15ft. SGD 908.65
AFDT-0825CBB25ft. SGD 1567.96

Vent Duct, 12 Inch Diameter, 33 Feet Length, Yellow

ModelItemPrice (inc. GST)
FDT-30534010BBAF4EJZ SGD 896.62

Unreinforced Layflat Duct, 25 Feet Length

ModelItemPrice (inc. GST)
FDT-1625SMECL6VQZ SGD 637.13
See Details

Confined Space Ventilation Ducting

Ventilation ducts are designed for use with confined space fans for providing fresh air supply and ventilating hazardous gases & fumes from basements, manholes and chemical processing plants. Raptor Supplies offers a wide array of Allegro, Ecko, Americ, Ramfan and Air Systems International blower exhaust ducts featuring a flexible design for ensuring quick installation in tough-to-reach spaces. Allegro ventilation ducts feature a statically conductive design for discharging the static build-up and preventing accidental sparks in hazardous locations, and a neoprene coating for withstanding temperatures up to 250 degrees F. Ventilation ducts from Air Systems International are made of polyethylene / vinyl for maintaining structural rigidity and also facilitate ease-of-storage & maximum job-site portability. Choose from a wide range of these ducts available in diameters ranging from 8 to 26 inches.

Working Mechanism

  • HVAC ducting is installed in voids above a suspended ceiling.
  • The ducting is responsible for supplying and extracting air from occupied spaces below.
  • Diffuser grilles are used to distribute the air into the room or extract air from the room.
  • Fans or air handling units are used to draw or blow air through the ducts.
  • The airflow is controlled and directed to achieve proper heating, ventilation, and air conditioning in the building.


Allegro Statically Conductive Ducts :

Air Systems International Standard and Conductive Ducts :

  • They feature a 3/4 HP electric motor with 115VAC, 11.2A and 60Hz power supply.
  • These ducting units come with a GFI power cord for added safety.
  • They have an aluminium non-sparking blower wheel to prevent sparks in hazardous environments.
  • These ducts have a polyethylene fan housing for durability and corrosion resistance.
  • They come with a powder coat tubular steel frame with dual handles for easy transportation and stability.
  • These ducting units have moulded safety guards for protection during operation.
  • They feature an 8-inch intake and exhaust flange for efficient airflow.
  • These lightweight & portable ducts deliver a free air delivery of 1570 cfm.

Frequently Asked Questions

How long are these ducting units?

They are available in sizes ranging from 6 to 825 ft.

When does confined space ventilation matter?

Ventilation in confined spaces is always important. According to OSHA's confined space standard (1910.146 Permit Required Confined Spaces), no workers are permitted to enter a space if a gas detector detects an atmospheric hazard. Employees are also not permitted to enter a space until forced air ventilation has been used to eliminate atmospheric hazards and this ventilation must continue until all employees have left the workspace.

Are these ducts ideal for use in extreme environmental conditions?

Americ ventilation ducts are made of PVC, vinyl coated polyester and can withstand UV radiation, humidity and extreme environmental conditions. They can also be easily connected to ventilator fans or blower lips for negative or positive airflow.

How do I clean maintain confined space ventilation ducting?

  • Perform visual inspections regularly to check for damage, wear, or blockages.
  • Remove any accumulated debris, dust, or obstructions inside the ducting.
  • Mix water with a mild ducting cleaner or detergent for a suitable cleaning solution.
  • Use a soft brush or cloth to apply the cleaning solution to the interior surface of the ducting.
  • Gently scrub the interior surface to remove dirt, grease or residues without causing damage.
  • Thoroughly rinse the ducting with clean water to remove the cleaning solution and debris.
  • Allow the ducting to air dry completely to prevent moisture buildup.
  • Check seals, joints, and connections for wear or damage, and replace them as needed.
  • Store the cleaned and dried ducting in a clean, dry area away from potential damage or contamination.

How to install confined space ventilation ducting?

  • Prepare the work area by clearing obstacles and debris.
  • Measure the length and width of the installation area and plan the ducting route.
  • Gather all the necessary equipment for installation.
  • Connect the sections of ducting using appropriate connectors and clamps.
  • Position the ducting along the planned route and secure it with straps or hangers.
  • Install the inlet and outlet components, such as grilles or diffusers, ensuring proper alignment.
  • Seal the joints and connections using duct tape or other sealing methods.
  • Test the system for proper airflow, functionality, and potential leaks or obstructions.

What are the safety precautions to consider while using confined space ventilation ducts?

It is important to ensure that the ducting is properly secured and does not obstruct pathways or create trip hazards. Regular inspection and maintenance should be conducted to identify any damage or wear and replace any worn-out components.

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