Tri-Lobe Blower Pressure Packages for Aeration System

A new aeration system at a sewage treatment plant required three large blower pressure packages with on-site startup and training. Each package features a 728 Tri-RAM tri-lobe blower.

Package Equipment

  • Roots 728 Tri-RAM Positive Displacement Rotary Blower / Factory Certifed ASME PTC-9 One-PSI Slip Test
  • Elevated Fabricated Steel Base with Integral Belt Guard and associated brackets for accessory mounting
  • Motor, 200 HP, TEFC, Inverter Duty, 1800 RPM, 1.15 SF, 230/460 Volts, 3 Phase 60 Hz
  • Motor Slide Base, Double Adjusting
  • Drive, V-Belt, minimum service factor of 1.4
  • Inlet Filter, 12″, Polyester Element, Universal CCF-12
  • Inlet Silencer, 12″, Chamber-Absorptive Type, Universal SDY-12
  • Discharge Silencer, 10″, Chamber-Absorptive Type, Universal SDY-10, 12″ Discharge Flange
  • Discharge Expansion Joint, 10″, Single Arch, EPDM
  • Relief Valve, Pressure, Weighted Type, Sutorbilt, 4″, Set at 9 PSI
  • Check Valve, 10″ Wafer Style, EPDM Seal
  • Pressure Gauge, 2.5″ Dia., 0-15 PSI, Liquid Filled, Snubber & Gauge Cock
  • Filter Restriction Differential Pressure Gauge, 0-20″ WC, Dwyer 2020, Snubber & Gauge Cock
  • Vibration Isolation Pads, Rubber/Cork Type
  • Spare Parts: One Set of V-Belts per Blower, One Filter Element Per Blower, One Case of Oil Per Blower
373204_oil
One of the packages is lubricated prior to testing
373204_package
Each blower package is driven by a 200HP motor
373204_728TRI-RAMblower
Each package features a 728 TRI-RAM blower
373204_shipping2
All three packages being loaded for shipment
373204_shipping1
The inlet silencers are detached and will be installed on site

Operating Conditions:

  • Inlet Volume: 3416 ACFM (3000 SCFM)
  • Site Elevation: 605′
  • Barometric Pressure: 14.4 PSIA
  • Inlet Temperature: 100 °F
  • Inlet Pressure Drop: 0.3 PSI
  • Blower Inlet Pressure: 14.1 PSIA
  • Discharge Pressure Drop: 0.2 PSI
  • Discharge Pressure: 8.0 PSIG
  • Blower Differential Pressure: 8.5 PSI

Performance Data:

  • Design Speed 2694 RPM (88% of maximum)
  • Shaft Power: 159 BHP
  • Discharge Temperature: 213 °F
  • Differential Temperature: 113 °F (49 % of maximum)
  • Discharge Volume: 2614 ACFM
  • Estimated Noise Level: 95 dBa at 3 feet
Latest Projects

Peanut Conveying Pressure Package

Positive displacement blower packages are a great choice for conveying the bulk materials of agriculture.  This large pressure package is going to a plant that takes peanuts straight from the field and processes them by cleaning, shelling, and sizing them.
Read More

HDPE & PPE Pellet Conveying Blower Package

One common application of positive displacement blowers is in the recycling industry.  These three pressure packages will be used to convey two different types of plastic pellets: HDPE (high-density polyethylene) and PP (polypropylene).
Read More