An enclosed version of our P3 pressure package, this project featured a 47 URAI blower, 10 HP motor, and starter panel on a custom fabricated skid with forklift slots for easy transport. The acoustical enclosure was galvanized steel with removable doors and roof and a 120V exhaust fan.
- Roots 47 URAI Positive Displacement Rotary Blower
- VersaBase 34 with Integral Belt Guard and associated brackets for accessory mounting
- Motor, 10 HP, TEFC, Premium Efficiency, 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, 4″, Paper Element, Universal CF-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 5 PSI
- Check Valve, 3″ MNPT, EPDM Seal
- Pressure Gauge, 2.5″ Dia., 0-15 PSI, Liquid Filled, Snubber & Gauge Cock
- Enclosure, Acoustical, Galvanized Steel, Removable Roof & Doors, 120V Exhaust Fan
- Fabricated Steel Sub-base for common mounting of package and enclosure, Forklift Slots
- Mechanical Run Test @ Design Conditions
- Simplex Starter Panel, NEMA4X
- UL489 Main Breaker
- Overload
- Contactor
- 30 mm HOA Switch
- 30 mm Red Light
- 30 mm Greem Light
- Hour Meter
- Control Transformer
- UL489 Control Breaker



Operating Conditions:
- Inlet Volume: 272 ACFM (240 SCFM)
- Site Elevation: 50′
- Barometric Pressure: 14.7 PSIA
- Inlet Temperature: 100 °F
- Inlet Pressure Drop: 0.3 PSI
- Blower Inlet Pressure: 14.4 PSIA
- Discharge Pressure Drop: 0.2 PSI
- Discharge Pressure: 4.0 PSIG
- Blower Differential Pressure: 4.5 PSI (64% of maximum)
Performance Data:
- Design Speed: 2,154 RPM (60% of maximum)
- Shaft Power: 7.4 BHP
- Discharge Temperature: 162 °F
- Differential Temperature: 62 °F (27% of maximum)
- Discharge Volume: 230 ACFM
- Estimated Noise Level: 76 dBa at 3 feet (with enclosure in place)
