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Series 6 Nominal Volume at 1725 RPM
See note at bottom

Flow
Rate
(GPH)

Gallons Per Hours
Pressure (PSI)

Brake Horsepower
Pressure (PSI)

50 100 150 200 250 50 100 150 200 250
660 663 660 657 654 651 0.50 0.95 1.40 1.85 2.35
600 612 609 606 603 600 0.50 0.90 1.35 1.80 2.30
540 552 549 546 543 540 0.50 0.85 1.30 1.70 2.00
480 489 486 483 480 477 0.45 0.75 1.15 1.50 1.80
420 435 432 429 426 423 0.45 0.70 1.00 1.35 1.75
360 372 369 366 363 360 0.40 0.65 0.95 1.25 1.55
300 303 300 297 294 291 0.35 0.55 0.85 1.15 1.45

Capacities & Horsepower Graph

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Note: Nominal flow rating for each pump is based on operating the pump at a speed of 1725 rpm, at a discharge pressure of 100 psi, with 70 F tap water as the fluid.  The values are measured averages; individual pumps will deviate from these values.  Because the pumps are positive displacement pumps, the discharge flow (in gallons per hour) is directly proportional to the speed at which the pump is being driven (800 rpm - minimum, 1725 rpm - maximum for series 6,  2300 rpm - maximum for Series 1, 2, 3, 4 & 5).  Use these charts to find your actual flow and minimum power requirements.