|Installation of Rams|
The Drive Pipe should be metal, (usually galvanized steel),
unless encased in concrete. In some cases people have successfully used well-anchored PVC
plastic pipes. However, for trouble-free operation we recommend that the Drive Pipe be
galvanized steel. It should be straight as possible without elbows, and normally the same
pipe size as Intake end of the Ram. It should be watertight and rigidly anchored, with a
Strainer at the source end to keep out refuse from the Ram. See Figure 6.|
The Drive Pipe itself must be of the correct length. Use the following guidelines:
|Vertical Fall||Length of Drive Pipe|
|3-15 feet||6 times length of Vertical Fall|
|16-25 feet||4 times length of Vertical Fall|
|26-50 feet||3 times length of Vertical Fall|
Whenever distances exceed the lengths suggested above or when special conditions exist, please ask us for the correct length and diameter of Drive Pipe to assure maximum delivery.
Fig 6 Usual Drive Pipe arrangement when Supply is nearby. If supply is distant, call us for instructions.
Foundation and Ram Pit
A concrete slab or a large flat rock provides a good solid foundation on which to set the Ram. The best procedure is to put in a concrete slab as a foundation, slightly sloping towards the rear where the unused water will be carried away. After the Drive Pipe and Delivery Pipe are installed and the Ram is in operation, the Ram should be enclosed in a Concrete Pit. The Ram Pit should be large enough to give a clearance of 18 inches from the Ram on all sides in cases any bolts need to be replaced. The Pit should be high enough to prevent flood water from getting in. A sloping shed roof of boards provides good cover, yet, in colder climates it is better to cover the Pit with a concrete slab to prevent freezing. Use a manhole or a metal cistern for an opening to the Ram Pit.
The correct size Delivery Pipe should match the dimension given for each particular size of Ram. Do not install a Delivery Pipe smaller than that is specified. By doing so you increase the amount of friction lost, consequently reducing the amount of water delivered. Avoid right-angled elbows wherever possible. This will minimize friction loss. Do not fill the ditch until the Ram is started and in operation. That way, leaks can be easily located and stopped before water covers the Delivery Pipe.
The installation of a Gate Valve in the Delivery Pipe at the Ram is a great convenience for cutting off water when it is necessary to adjust or too repair a Ram. The ditch for Delivery Pipe should be sufficiently below the frost line.
In case the Delivery Line goes over the top of a hill and down into a valley on its way from the Ram to the delivery point, a small Air Release Valve or Pet Cock should be installed in the Delivery Pipe at the highest point to release accumulations of air from time to time. Otherwise, accumulated air will restrict the free flow of the water.
The overflow pipe should also enter the bottom of the reservoir and terminate with a sleeve joint connection. Into this sleeve joint should be screwed a piece of pipe, the length of which determines the height of water in the reservoir. An emergency overflow should be provided at the top of the reservoir a few inches above the level of the regular overflow.
The Ram Pit should be provided with a Drain Tile to carry off unused water. In many cases the total amount of fall can be increased by sinking the Ram Pit deep into the ground and carrying off the unused water though a long line of Drain Tiles of sufficient length to bring it out at water level downstream. In other cases, it is a choice between increasing the length of the Supply Pipe or running a line of Drain Tile. Usually, it is cheaper to use more tile and less pipe.
General Instructions For Installing Rife Rams
Rife Rams are easy to install when instructions are closely followed. There are many different ways Rams can be installed, depending mainly on the lay and character of the ground and other local conditions. If your conditions are different from those described here or elsewhere in this Manual, please write to us giving full details of your conditions. We will advise you in writing on the proper method of installing the Ram.