# Application Information

Ft. Head x GPM

3960

Ft. Head x GPM

3960

Ft. Head x GPM

3960 x EFF

WHP

BHP

**WHP** = Water Horsepower

**BHP** = Brake Horsepower

**EFF** = Pump Efficiency

To determine the approximate horsepower required for an ACE centrifugal pump at a given flow and pressure:

GPM x PSI

1714 x .5

To determine the speed at which a liquid is traveling:

.408 x GPM

(pipe diameter)^{2}

To determine the heat generated from by-passed hydraulic oil:

**BTU Per Hour** = GPM x PSI x 1.48

**12,000 BTU/HR** = 1 Ton Refrigeration

Weight of one U.S. Gallon of water = **8.34 pounds**
One Cubic foot(cu.ft.) of water contains **7.48 gallons**

PSI(water) x 2.31

specific gravity

**PSI(pounds per square inch)** = Feet Head x .433

**Specific gravity of water(sp.gr.)** = 1.0

## Specific Gravity

Water weighs 8.34 lbs./gallon and has a specific gravity of 1. Since specific gravity is a ratio of the weight of a liquid compared to the weight of water, the specific gravity of a liquid such as 28% nitrogen fertilizer, which weighs 10.65 lbs./gallon would be figured thus:

10.65 lbs./gallon

8.34 lbs./gallon

SOLUTION WEIGHT | SPECIFIC GRAVITY | CONVERSION FACTOR |
---|---|---|

8 lbs./gal. 8.34 lbs./gal. 9.0 lbs./gal. | .96 1.0 1.08 | .98 1.0 1.04 |

10.0 lbs./gal. 10.65 lbs./gal 11.0 lbs./gal | 1.2 1.28 1.32 | 1.1 1.13 1.15 |

All pump capacities (GPM) in this catalog are based on water. When pumping fluids that are heavier than water, pump capacity will be less than stated on each pump performance table. To compensate for pumping heavy liquids, multiply the required pump capacity in GPM times the appropriate conversion factor from the above chart.

EXAMPLE: Required pump capacity is 50 GPM of 28% nitrogen fertilizer.

#### 50 x 1.13 = 56.5 GPM

Then select a pump from the preceding pages that will deliver 56.5 GPM at the desired pressure.

## Conversion Factors

Multiply | By | To Obtain | |
---|---|---|---|

LENGTH | inches inches feet miles | 25.40 2.540 0.3048 1.609 | millimeters (mm) centimeters (cm) meters (m) kilometers (km) |

AREA | acres acres hectares | 4046.7 0.4047 2.471 | square meters (m⊃2) hectares (ha) acres |

VOLUME | gallons gallons gallons Imperial gallons Imperial gallons U.S. gallons liter pounds water | 3.785 3.785 231 4.546 1.201 .833 0.264 0.119 | cubic decimeters (dm3) liters (L) cubic inches (in³) liters (L) U.S. gallons Imperial gallons gallon gallon |

FLOW RATE | gallons/hour (gph) gallons/minute (gpm) | 3.785 3.785 | liters/hour (L/h) liters/minute (L/m) |

APPL. RATE | gallons/acre (gpa) | 9.353 | liters/hectare (L/ha) |

PRESSURE | pounds per square inch (psi) psi ft. (head) of water inches mercury (Hg) bar kilopascal | 6.895 2.31 0.433 0.491 14.5 0.145 | kilopascals (kPa) ft. (head) of water psi psi psi psi |

SPEED | miles/hour(mph) kilometers/hour(km/h) | 1.609 0.621 | kilometers/hour(km/h) miles/hour(mph) |