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Split Flow Pump Feature Reduces Costs
When process designs use API Standard 610 centrifugal pumps for DUAL-SERVICE
applications, use of the Split Flow feature provides unique benefits,
i.e.:
- Permits use of two pumps instead of four ?Capital Savings
- Allows use of smaller motors ?kW Savings
- Provides better pump-to-system hydraulic fit, references: API
Standard 610 criteria and juxtaposed curves.
?Results in longer MTBR (mean time between repairs) for seals & bearings.
Little
Split Flow is used with single-stage, overhung-type pumps
(horizontal or vertical inline) up to 200 hp. The feature allows for
use of smaller diameter impellers. Impeller diameter can be a restraining
parameter for some overhung pump services.
For larger sizes, Big Split Flow is used with multi-stage,
between-bearings API type pumps, e.g. two-stage radial split case
(for rated temperature up to 800°F) or multi-stage horizontal
split case types for service temperatures below 400°F and specific
gravities above 0.70.
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