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Overview Specifications Documentation & Tools ;
Overview

Overview

Product Features
  • Reliable, energy efficient, and easy to maintain
  • Diverse technologies available to suit any aeration need

Various blower options available

Numerous blower options are available to meet specific wastewater treatment plant requirements.

Rotary lobe blowers offer the advantage of low upfront capital investment costs and low efficiency. A pair of spinning rotors delivers a fixed volume of air for each rotation. Rotary lobe blowers rely upon external compression where the air is compressed by the system backpressure.

Screw rotor blowers provide higher efficiency than other positive displacement blowers thanks to the use of internal compression. A pair of intermeshing screws progressively reduce the volume of air as it moves along the length of the screw element.

Multi-stage centrifugal blowers are employed for larger flows and require less capital investment than other types of centrifugal blowers. Multiple impellers are mounted on a single low-speed shaft normally operating at a fixed speed.

Single-stage, integrally geared blowers are more efficient than positive displacement and multi-stage centrifugal blowers. A single impeller achieves higher rotational speed via a step-up gear. These can be equipped with variable inlet guide vanes and diffuser vanes to achieve high efficiency over a range of operating flows.

Variable-speed, single-stage, high Speed direct-drive Turbo blowers are more efficient for higher flows in comparison to positive displacement and multistage blowers. A dual impeller or preferably a single impeller for better efficiency  is mounted directly onto the shaft of a high-speed motor with the low-friction magnetic or air foil bearings.  The integrated variable frequency drive (VFD) matches pressure and flow rate demands. 

Specifications

Specifications

General Information
Positive Displacement Blower
Centrifugal Blower
Size
Generally best for 150 Hp or less
Generally best for 150 Hp or less
Type
Vertically mounted, positive displacement rotary type with top inlet and bottom outlet
Multi-Stage Centrifugal
Configuration
Factory assembled package to include blower, motor with slide base, V-belt drive, flexible expansion joints, drive guard, steel base, inlet filter, inlet and discharge silencers, pressure relief valve, check valve, discharge isolation valve, inlet and dis
Rotors and Shaft
Positive Displacement Blower
Centrifugal Blower
Rotors and shaft material
Ductile Iron
Gears and Bearings
Positive Displacement Blower
Centrifugal Blower
Gears and bearings material
Heat-Treated Alloy Steel
Lubrication and Seals
Positive Displacement Blower
Centrifugal Blower
Types of lubrication and seals
Lube oil system with sight glass, reservior, and lip seal. Timing gears and gear end bearings to be splash oil lubricated. Drive and bearings to be grease lubricated.
Blower Casing
Positive Displacement Blower
Centrifugal Blower
Blower casing material
Cast Iron
Impellers
Positive Displacement Blower
Centrifugal Blower
Impeller material
Fabricated or Cast Aluminum
Blower Shaft Bearings
Positive Displacement Blower
Centrifugal Blower
Bearing type
Conrad Type Deep Groove Ball Bearings
Motor and Coupling
Positive Displacement Blower
Centrifugal Blower
Motor and coupling configuration
Mount blower and motor on a common steel baseplate with a flexible coupling between motor and blower
Accessories
Positive Displacement Blower
Centrifugal Blower
Types of accessories
Flexible rubber inlet and outlet isolation sleeves, cast iron butterfly valves for inlet and outlet, cast iron discharge check valve, inlet air filter/silencer, and motor input ammeter.
Documentation & Tools

Documentation & Tools