Allegro 16" Axial AC Plastic Blower with Canister & Ducting — High-Output Confined Space Ventilation
The Allegro 9553-15 is a 1 HP, 115V AC axial blower engineered for high-volume air movement in large confined spaces. Built from corrosion-, UV-, and chemical-resistant polyethylene and rated at 3,200 CFM free air, it is purpose-built for demanding environments such as paper mills, tank purging, utility sites, and industrial manufacturing facilities. The unit ships complete with a storage canister and 15 feet of ducting, allowing crews to deploy a full ventilation system without sourcing additional components. Certified to CSA Standard C22.2 No.113, UL Recognized, and CE Certified, it meets the compliance requirements contractors and safety managers need on regulated job sites.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | ALLEGRO |
| Item # | 9553-15 |
| UPC | 741851955322 |
| Country of Origin | China |
| Power | 1 HP, 115V AC, 60 Hz, Single Phase |
| Fan | Polypropylene three-blade fan |
| Housing Material | Polyethylene (corrosion-, UV-, and chemical-resistant) |
| Color | Safety orange |
| Airflow — Free Air | 3,200 CFM |
| Airflow — One 90° Bend | 2,350 CFM |
| Airflow — Two 90° Bends | 2,250 CFM |
| Airflow Direction | Positive (ventilate) and negative (exhaust) |
| Blower Weight (unit only) | 40 lbs. |
| Shipping Weight (with canister & 15' ducting) | 66 lbs. |
| Ducting Included | 15 ft. (4.57 m) |
| Certifications | UL Recognized, CSA Certified (CSA Standard C22.2 No.113), CE Certified |
| Applications | Construction, Industrial, Manufacturing, Confined Space |
| Technical Tips | Pair with duct-to-duct connector for extended distances |
Available Items
| Item # | Description | Ducting | Weight (with canister) |
|---|---|---|---|
| 9553 | 16" Axial AC Plastic Blower (no canister) | None | 40 lbs. |
| 9553-15 | 16" Axial AC Plastic Blower with Canister & 15' Ducting | 15 ft. (4.57 m) | 66 lbs. |
| 9553-25 | 16" Axial AC Plastic Blower with Canister & 25' Ducting | 25 ft. (7.62 m) | 72 lbs. |
Unlike metal-housing axial blowers, the polyethylene construction of the 9553-15 eliminates corrosion concerns in wet or chemically active environments while keeping the overall system weight manageable for a 16" class blower. The quick-connect clipping system allows workers to attach the canister to either the input side for extraction or the output side for ventilation without tools, providing operational flexibility that metal-frame alternatives typically cannot match at this price point.
Key Features & Benefits
High-Output 3,200 CFM Airflow
Delivering 3,200 CFM free air and maintaining 2,250 CFM through two 90° bends, this blower moves substantial air volume even in ducted configurations with multiple direction changes. For contractors working in large confined spaces, that sustained airflow means faster purge times and more reliable atmospheric control throughout the work area.
Bidirectional Airflow (Positive & Negative)
The three-blade polypropylene fan supports both positive-pressure ventilation and negative-pressure exhaust from a single unit. This eliminates the need to carry separate supply and exhaust blowers to a job site, reducing equipment costs and transport weight.
Quick-Connect Canister System — Tool-Free Setup
The quick-connect clipping system lets workers attach the storage canister to either the input or output side of the blower without tools. This speeds up deployment and reconfiguration in the field, which is critical when atmospheric conditions in a confined space require a rapid change from ventilation to extraction mode.
Corrosion-, UV-, and Chemical-Resistant Polyethylene Housing
The polyethylene housing and canister assembly resist the corrosive chemicals, UV exposure, and moisture common in industrial and utility environments. Contractors working in wastewater, refinery, or chemical processing sites can rely on the housing to maintain structural integrity over extended service life.
Enclosed Electrical Components & Molded Carry Handle
A bottom enclosure protects electrical components from debris, moisture, and incidental contact — a meaningful safety and durability feature in dirty job-site conditions. The carry handle is molded directly into the housing, providing a secure, ergonomic grip without the risk of a separate handle loosening over time.
Integrated Ducting Storage & On/Off Switch
The 15' ducting stores conveniently within the canister, keeping the system compact and organized during transport. The built-in On/Off switch on the carry handle allows the operator to control the blower without reaching around the unit, improving both convenience and safety.
Safety Orange Color for High Visibility
The safety orange finish makes the blower easy to spot in busy work environments, reducing the risk of trip hazards or accidental contact in congested confined-space entry areas.
Triple Certification (UL, CSA, CE)
UL Recognized, CSA Certified to C22.2 No.113, and CE Certified, the 9553-15 satisfies the compliance documentation requirements that safety managers and general contractors commonly require before equipment is approved for use on regulated job sites.
Common Applications
Confined Space Entry Ventilation
Provides the sustained airflow required to purge hazardous gases and maintain safe atmospheric conditions in manholes, vaults, tanks, tunnels, and vessels prior to and during worker entry.
Tank Purging
Delivers high-volume airflow to rapidly remove gases from storage tanks and large vessels before entry, a primary use case for this blower class according to Allegro's own application guidance.
Paper Mill Ventilation
The chemical-resistant polyethylene housing makes this blower well-suited for paper mill environments where airborne chemicals and moisture would degrade metal or standard plastic housings.
Utility Site Ventilation
Portable enough for transport between utility job sites and powerful enough to ventilate large underground or enclosed utility structures effectively.
Industrial & Manufacturing Facilities
Suitable for general industrial ventilation tasks in manufacturing plants, distribution centers, and similar large enclosed work areas where high CFM output is required.
Construction Site Confined Spaces
Supports OSHA-compliant confined space ventilation programs on construction sites, including work in pipelines, silos, hoppers, and similar structures.
Compatible Materials
- Standard flexible ducting (15 ft. included; 25 ft. option available)
- Extended duct runs via duct-to-duct connector (sold separately)
- Compatible with Allegro inline axial booster blowers for longer duct distances
Product Documents
Frequently Asked Questions
Q: Can this blower be used for both supply ventilation and exhaust extraction?
A: Yes. The 9553-15 supports both positive airflow (ventilation) and negative airflow (exhaust), and the canister can be attached to either the input or output side of the blower using the tool-free quick-connect clipping system.
Q: What is the airflow output when ducting is used with bends?
A: Free air output is 3,200 CFM. With one 90° bend the blower delivers 2,350 CFM, and with two 90° bends it delivers 2,250 CFM. CFM figures are calculated using 15' x 16" ducting.
Q: How can I extend the reach of this blower beyond the included 15' of ducting?
A: Allegro recommends pairing the blower with a duct-to-duct connector for extended distances. Inline axial booster blowers can also be used as velocity accelerators for longer duct runs.
Q: Is a 25' ducting version available?
A: Yes. The 9553-25 includes a canister and 25 feet (7.62 m) of ducting and weighs 72 lbs. complete.
Q: What certifications does this blower carry?
A: The 9553-15 is UL Recognized, CSA Certified to CSA Standard C22.2 No.113 (Fans and Ventilators), and CE Certified.
Q: Is this blower suitable for hazardous (explosive) atmospheres?
A: No. The 9553-15 is a standard AC plastic axial blower and is not explosion-proof. For hazardous environments, Allegro offers a separate 16" Axial Explosion-Proof Plastic Blower line (model 9558 series).