Bell-gossett 193 TECHNOVAR VARIABLE SPEED PUMP CONTROLLER AND I Manual do Utilizador descarregar pdf (Página 36)

Operating Instruction

8.4 Single Pump – System Curve Compensation

The Technovar can automatically compensate for system friction losses due to increased flow.

Tables are available in most pump catalogs, indicating the amount of friction losses that can

be expected in various sizes of pipes at different flow rates. Use these tables to determine the

friction losses for the pipe size you are using at maximum flow rate.

This Diagram shows a typical system curve. The system pressure set point is shown at shutoff

and pressure increase is shown for increasing flow.

Calculate the pressure required to overcome friction losses at maximum flow.

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Bell-gossett 193 TECHNOVAR VARIABLE SPEED PUMP CONTROLLER AND I Manual do Utilizador Página 36