One of our current packages is unique in that it features two separate blower packages housed on a duplex base. This pressure system will be exported to South America to provide aeration in a water treatment application. Our customer wanted this unique configuration so the blower packages can be alternated, while saving space with a small footprint.
Each Package Contains
- Roots 47 URAI Positive Displacement Rotary Blower
- Motor, 15 HP, TEFC, Premium Efficiency, 1800 RPM, 1.15 SF, 230 Volts, 1 Phase 60 Hz
- Motor Slide Base, Double Adjusting
- Drive, V-Belt, minimum service factor of 1.4
- Inlet Filter, 4″, Paper Element, Universal CCF-4
- Inlet Silencer, 4″, Chamber-Absorptive Type, Universal SD-4
- Discharge Silencer, 3″, Chamber-Absorptive Type, Universal SD-3
- Discharge Flex Connector, 3″, Silicone Impregnated Fiberglass
- Relief Valve, Pressure, Spring Type, Kunkle 337, 2″, Set at 6 PSI
- Check Valve, 3″ MNPT, EPDM Seal
- Pressure Gauge, 2.5″ Dia., 0-15 PSI, Liquid Filled, Snubber & Gauge Cock
- Butterfly Valve, Wafer Style, 3″, Lever Actuated, Discharge Isolation
Common to both packages
- Starter Panel for 208V/1/60 Hz
- Logic to Alternate Usage of the two blower packages
- UL489 Main Breaker
- Overload
- Contactor
- 30 mm HOA Switch
- 30 mm Red Light
- 30 mm Greem Light
- Hour Meter
- Control Transformer
- UL489 Control Breaker
- Wiring from control panel to motor
- Discharge manifold piping
- Common Base
Operating Conditions (each blower):
- Inlet Volume: 313 ACFM (284 SCFM)
- Site Elevation: 10′
- Barometric Pressure: 14.7 PSIA
- Inlet Temperature: 92 °F
- Inlet Pressure Drop: 0.3 PSI
- Blower Inlet Pressure: 14.4 PSIA
- Discharge Pressure Drop: 0.2 PSI
- Discharge Pressure: 4.75 PSIG
- Blower Differential Pressure: 5.25 PSI
Performance Data:
- Design Speed 2443 RPM (68% of maximum)
- Shaft Power: 9.8 BHP
- Discharge Temperature: 162 °F
- Differential Temperature: 70 °F (31 % of maximum)
- Discharge Volume: 259 ACFM
- Estimated Noise Level: 88 dBa at 3 feet
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