RIFE RAMS
CALCULATING WATER DELIVERED

Once you know the Flow, Fall, Vertical Elevation, and distances to and from the Ram, you are ready to calculate the amount of water the Ram will deliver to you. Multiply the available Flow in gallons per minute (V) by the Vertical Fall in feet (F). Divide that by the vertical Elevation (E). Multiply the result by 0.6 (60%), the normal efficiency of a Rife Ram installation:

V x F/E x 0.6 = D

Download our Ram Situation Calculator to use this formula without the math!

This will give you the Delivery (D) in gallons per minute using all the available water supply. To obtain gallons per hour, multiply this amount by 60. For gallons per day, multiply by 1440.

PERFORMANCE CHART FOR RIFE HYDRAULIC RAMS

SHOWING PERCENTAGE OF WATER USED THAT A RIFE RAM WILL DELIVER
UNDER VARIOUS CONDITIONS OF VERTICAL FALL AND ELEVATION

Vertical Elevation in Feet with Delivery Pipe Friction Factored In

 8 16 25 50 75 100 125 150 200 250 300 400 500 Vertical fall in feet 4 22.5% 12.5% 8.0% 3.6% 1.6% 8 22.5% 16.0% 9.6% 6.4% 4.8% 3.5% 2.7% 2.0% 12 21.5% 13.2% 9.6% 7.2% 5.7% 4.8% 3.3% 2.4% 2.0% 16 16.0% 11.7% 9.6% 7.7% 6.4% 4.8% 3.8% 2.9% 2.0% 20 18.0% 14.7% 12.0% 9.6% 8.0% 6.0% 4.8% 4.0% 2.5% 2.0% 25 22.5% 16.7% 13.8% 12.0% 10.0% 7.5% 6.0% 5.0% 3.8% 2.5% 30 18.0% 15.0% 13.2% 12.0% 9.0% 7.2% 6.0% 4.5% 3.3% 35 21.0% 17.5% 15.2% 14.0% 10.5% 8.4% 7.0% 5.3% 4.2% 40 18.0% 16.0% 14.7% 12.0% 9.6% 8.0% 6.0% 4.8% 50 22.5% 18.0% 16.7% 13.8% 12.0% 10.0% 7.5% 6.0%

NOTE: The amount of water used and pumped by RIFE Hydraulic Rams increases with increase in the Vertical Fall from the source of Supply to the Ram, and with increased lift of the Lever Rest during the stroke. This lift determines the opening of the Outside Valve and is adjustable. The range of intake capacity of each model and size of Rife Rams is listed in the Table entitled "Specifications of RIFE Rams" on the back cover of page.

EXAMPLE: A Rife Ram, using a vertical Fall of 12 feet, pumping to an Elevation of 125 feet, will deliver 5.7% of the water used. For a Model 30BU Rife Ram, using 40 gallons per minute, this would be about 2 ¼ gallons per minute. One gallons per minute=60 gallons per hour, or 1440 gallons per day.

More water can be obtained by installing two or more rams in parallel. On irrigation, municipal water supplies and other large projects, a battery of two or more Rife Rams offers unlimited possibilities for an efficient and economical water system. It is often desirable to install two medium sized Rams to pump the same amount of water as one larger sized ram. With a battery installation, the number of Rams in operation can be governed by the amount of water required.

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