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Calculate – Triplex Pump Output Formula in Gallons Per Minute

Let’s find Pump Output for a Triplex Pump.

The Formula to find the output for a triplex pump is as follows:

Triplex Pump Output in gpm = [3 x (diameter^2 x 0.7854) x Stroke length] 0.00411 x strokes per minute

Now that we know the formula, let’s do an example given the following information -

- pump output = 90% efficiency

- liner size = 6.5 inch diameter by 12 inch stroke length

- strokes per minute – 90

Given the above information,

Triplex Pump Output in gpm = [3 x (6.5^2 x 0.7854) x 12] 0.00411 x 90

So,

Triplex Pump Output in gpm = 441.88 gpm