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Summary Comparison of Big and Little Split Flow features.   Little Split Flow™ Big Split Flow™ Pump Type - Generic Overhung: Horizontal & Vertical Between Bearings: Horizontal API Standard 610 Type OH2 & OH3 BB2 Discharge (Standard Sizes) 1 inch Through 10 inch 2 inch Through 10 inch Casing Radial Split Radial Split Number of Stages / Impellers    Primary:    Secondary: - One + Auxiliary - Single Suction - Drilled Hole Type up to 40 GPM    Radial Type over 40 GPM & - Two - Double Suction 1st Stage * - Single Suction 2nd Stage Minimum Flow Bypass (discussion)    Primary Discharge:    Secondary Discharge:   - Required - Not required with drilled hole impeller - Required with radial impeller   - Not Required - Required High Pressure Secondary Flow Up to 30% of total 2000 gpm Maximum Horsepower - Nominal Maximum @ 3600 RPM 200 2000 Bearings Ball or Roller Journal: Ball or Sleeve Thrust: Ball or Tilt-pad Reasons To Use (Applicable to both types) Save kW by avoiding an oversized pump & motor to envelop a high-head secondary flowstream Save capital cost by combining two services into one pump Optimize the pump-to-system hydraulic fit and operate closer to BEP (Best Efficiency Point) Pump Manufacturers Licensed by Split Flow - CPC Pumps, Int'l. - Flowserve - Sulzer CPC Pumps, Int'l. * Single suction first stage impeller is used with smaller size pumps.

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