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
One of the packages is lubricated prior to testing
Each blower package is driven by a 200HP motor
Each package features a 728 TRI-RAM blower
All three packages being loaded for shipment
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

VFD Control System with Remote Radio Control

This customer was faced with an interesting challenge at an environmental cleanup site.  A pump was needed to pull water at a variable rate from a deep well in a very remote location.  Due to the unique circumstances of this...
Read More

Direct Drive Package for Blower Integrator

At pdblowers we work with all types of customers, from end users and resellers to OEMs and other equipment integrators.  This package was designed for a direct drive 4005 Tuthill blower and 15 HP motor which will be integrated by...
Read More