Duct Blowers / Inline Blowers

• We are the industry leader in the manufacture of inline blowers. We are the only one who does not buy the “heart” (the internal FC blower) from others as we manufacture such FC blowers as a core business.
• Our position is so strong that we sell them private labeled to other well known fan companies.
• Our volume in these permits an attractive price and quick availability.
• As part of an HVAC system Delhi Duct Blowers will not “surge”, “hunt”, or “stall”.
• The variable speed motor pulley permits field adjustment (typically + or - 15%) to match air delivery needs.
• For the quietest operational needs we offer optional internal spring isolation of the blower/motor from the housing thus greatly reducing radiated cabinet noise.
• Our twins (two duct blowers on a common shaft) is a wide but not tall solution for situations where vertical space is limited.
• Quiet forward curved blowers operate at ½ the rpm of other inline solutions.
• An outdoor series, 9200, is available.

Specifications for Inline Blowers:

• Wheel Diameters: 7” through 20”
• CFM: Approximately 500 to 12,500 CFM in a single blower (Twins available)
• Static Pressure: Usage to about 3” static pressure is common, although allowable range is higher

Industries Served

Delhi's Inline Blowers are used in a variety of industries including:

• Commercial HVAC
• Ventilation
• Heating
• Cooling
• Construction

Typical Applications for our Inline Blowers

There are many applications for Delhi's Inline Blowers, they typically indlude:

• An Inline make-up air solution for cases where a rooftop curb mounted solution is not available.
• As an air moving module for systems built up with other components such as heating/cooling coils.
• Noise sensitive areas - the low rpm forward curved wheel typically radiates less vibration than higher rpm backward inclined wheel solutions.
• When the application requires an air mover in a duct system located in a ceiling space.
• Redistribution or recirculation of air in a work space.
• Interlocked with entry doors to prevent entry of cold outdoor air into retail sales space and thus greet customers with warmth.
• Toilet room/ rest room exhaust - one duct blower serving multiple intakes.

Materials

Delhi Inline Blowers are constructed from cold rolled steel, with attractive green enamel. The Outdoor unit uses protective galvaneal steel under the enamel.

Value Added Services

Delhi offers our Delair Fan Seletion Software available for immediate download. The Delair Fan Selection Software can be used to select an appropiately sized inline blower.

• Factory mounted motors and drives available.
• Optional internal spring isolation of the blower/motor from the housing thus reducing radiated cabinet noise.
• Optional Internal 1/2“ fiberglass insulation to prevent condensation. (Standard on outdoor 9200 Series)

Frequently Asked Questions

What’s the availability?

Single units are typically in stock and can be shipped right away. (Add two days if motor to be mounted.) Twins typically take 4 weeks.

Available in 3 configurations to meet your requirements.

All models have shafts keywayed on both ends for CW or CCW drive. Twin units available with common shaft to ensure balanced air supply. All units are ETL Listed and AMCA Certified

Optional Accessories

• Hot Water and Chilled Water Coils
• Filter Sections and Intake Hoods
• Rubber, Spring or Hanging Spring Vibration Isolators.

AMCA Certified for Sound and Air Performance

Delhi Industries Inc. certifies that the 200 & 200-2 and 9200 & 9200-2 Series Duct Blowers shown herein are licensed to bear the AMCA seal. The ratings are based on tests and procedures performed in accordance with AMCA Publication 211 and Publication 311 and comply with the requirements of the AMCA Certified Ratings Program

Contact Us with your Requirements