Life 4 Water, Inc.

Bagamaspad Compound, Green Village, Katipunan 2A Hinaplanon, 9200 Iligan City, Philippines

Email: life4water @

The Life 4 Water Ram Pump

L4W Ram Pumps are customized, durable and efficient. They are now available on order basis from GILMAN RAM PUMP & ENTERPRISES 

For orders and price quotation, please, email:

rampump @ or

gilmanrampump @


In areas where the source of water is down in the valley, hydraulic ram pumps are most appropriate way to deliver water uphill.
    A hydraulic ram pump is a kind of  water pump that utilizes the pure kinetic energy of falling water in a pipe to lift itself to a service area higher than its source. It's economical and efficient. It operates 24/7 and easy to maintain.

   There are, basically, three types of ram pumps. The Cast, Welded and the Fitting type. The cast iron is the most efficient and very long lasting but very much expensive. The welded type is equally efficient as the cast type but not as long lasting as the latter. The fitting type is less efficient and can’t withstand against high water pressures. Commercial welded type ram pumps are often galvanized to resist rust and stay for a long time; there are homemade welded type that are not galvanized -- they last shorter than the galvanized one.

    There are also ram pumps which are made of PVC materials but the efficiency and durability of this type is poor.
    The L4W hydraulic ram pump is a welded and galvanized type to last for many years. There are at least 40 units of ram pumps that Life 4 Water has installed in different hinterland villages in 6 different provinces since 2003 and are still operational until today.
    Ram Pumps are suitable in areas where there is steady supply of flowing water such as spring and river whole  year round and where there is “fall” to establish a drive pipe to the ram pump.




Ram pump installed in Barangay Tusik, Municipality of Bonifacio, Province of Misamis Occidenta. 

The project funded by DSWD-KALAHI-CIDSS 


The above ram pumps are quality products of Life 4 Water, Inc. They are manufactured in Iligan City and are galvanized twice to withstand rust and oxidation for longer time.

Sales and installation of ram pumps are the major revenues of Life 4 Water for its operation. Surplus revenues are used to fund village level development projects.




How Ram Pump Works?

 Operating Principle
he operational principle of hydraulic ram is very simple. It uses the  water hammer. effect in the ram to transmit water from lower elevation to a much higher elevation.. Ram pump has only two moving parts that dictates the whole operation. These are the waste valve or the impulse valve  and the check valve. Of course there are are other parts that supports channeling of water.

In order to operate, you must have a source of water situated above the pump. For example, you must have a spring source at least 1 meter above the Ram so that the water from the spring could flow and build up momentum towards the ram. The spring box and the ram is connected by a pipe called drive pipe..
    * Once the water reaches its maximum speed, this waste valve (impulse valve) slams shut, thus creating a water hammer effect.
    * As it slams shut, the flowing water develops a great deal of pressure in the pump because of its inertia.
    * The pressure forces open a second valve, the check valve.
    * High-pressure water flows through the second valve (check valve) to the delivery pipe (which usually has an air tank to allow the delivery pipe to capture as much high-pressure water as possible during the impulse).
    * The pressure in the pump falls. The first valve re-opens to allow water to flow and build up momentum again. The second valve closes.
    * The cycle repeats

The volumetric efficiency of the ram depends on the FLOW of water from the source; the FALL or the height of the water source from the ram and the LIFT or the difference in height between the ram and the reservoir.

The disadvantage of ram is that, through the waste valve,  it throws back to ground  considerable amount of water since not all water that enters the ram are pumped uphill as compared to electrically or petrol driven pumps where it has no waste water...

-  It uses no electricity nor fuel, thereby, saving you on high cost of energy.
-  Minimal maintenance as it has only two moving parts, therefore,  reducing the "wear and tear" of the machine.
-  Easy to operate
-  7/24 operation. It operates seven days a week; 24 hours a day.

Helpful link:


History of Ram Pump

In 1772, John Whitehurst developed the first known machine to utilize the water hammer effect to pump water. He used a hand-operated Impulse valve, employing child labor to open and close the valve in continuous cycles.

In 1776, Joseph Michael de Montgolfier invented a similar machine but replaced the hand operated valve with an automatic impulse valve which was opened and closed by the rebound wave inside the hydraulic ram itself. Montgolfier's machine was called " Le Bel'ier Hydraulique", from which the term "hydraulic ram" was derived. The invention was so simple and reliable. It has survived over 200 years with very little change.
*Taken from Ram Pump manual published by Peace Corps




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