Product features
Ventilates hazardous vapors or fumes from underground storage tanks and other below-ground locations
Has no moving parts for low maintenance and uses compressed air or steam to operate
Galvanized steel housing provides corrosion resistance
Lightweight cast aluminum base comes in standard API sizes
Static grounding lug to dissipate static electricity
Product description
The Air Systems ASI-2900 / ASI-4100 Venturi-style pneumatic air blower has a galvanized steel housing and cast aluminum base, and uses compressed air or steam to ventilate vapors and fumes from underground storage tanks or other below-ground locations. It has no moving parts for low maintenance. The housing is made from galvanized steel for corrosion resistance and can be replaced when it shows signs of wear. The base is made from lightweight cast aluminum and comes in standard API (American Petroleum Institute) base sizes. The blower comes with a static grounding lug to dissipate static electricity and prevent accidental ignition of vapors or fumes. It has a built-in steel handle for carrying. The air blower can operate at pressures up to 140 pounds per square inch (psi).
 
Specifications ASI-2900
 
Overall length    44.00"
Diameter of housing    13.00"
Diameter of base    11.16"
Bolt circle diameter    10.28"
Base slot    0.43"
Intake valve connection    1" NPT
Maximum Flow: 3340CFM
Weight    22.1 Lbs
 
Specifications ASI-4100
 
Overall length    46.50"
Diameter of housing    14.31"
Diameter of base    14.37"
Bolt circle diameter    13.18"
Base slot    0.56"
Intake valve connection    1" NPT
Maximum Flow: 5041CFM
Weight    32.3 Lbs
 
 
Venturi-style blowers, also known as air horns or eductors, use the principles of the Venturi effect to vent hazardous vapors and fumes from below-ground sources. The base of the blower is connected to the underground tank or source where the fumes and vapors are present, and compressed air or steam is brought into the blower through a nozzle. Its narrow base constricts the compressed air or steam, which increases its velocity as it moves toward the vent at the top of the horn. This decreases the ambient pressure in the horn and creates a partial vacuum, drawing fumes up through the base and out through the vent.
Air Systems International manufactures air filtration systems, breathing air compressors, confined space ventilation products, and other safety equipment for industrial, military, and emergency response applications. The company, founded in 1984, is headquartered in Chesapeake, VA, and meets International Organization for Standardization (ISO) 9001 standards for quality.
 
Unit are used but in perfect condition. ONLY $95 / each ASI-2900 or ONLY $150 / each ASI-4100