Agriculture
December 22, 2023
Blake Hydram Hydraulic Ram Pump
Read SolutionImplemented by
Allspeeds
Updated on December 21, 2023
·Created on August 27, 2015
The AIDFI ram pump delivers water to higher elevation using flowing water without electricity.
Alternative Indigenous Development Foundation Inc (AIDFI) ram pumps are designed to provide access to clean water for remote rural communities. These pumps utilize gravity to collect water from stream sources into the pump’s reservoir and establish a pressure differential that drives the system. This system requires no electricity or fuel, and with the continued maintenance could provide water for over 20 years.
Target SDGs
SDG 6: Clean Water and Sanitation
SDG 7: Affordable and Clean Energy
Market Suggested Retail Price
$1,120.00
Target Users (Target Impact Group)
Community
Distributors / Implementing Organizations
Sold and Installed by AIDFI; usually donated by a governmental agency or NGO to communities. Partners include Coca Cola Foundation, Department of Agriculture and Siemens Stiftung.
Competitive Landscape
Direct competitors include Oxwater Smart Handpump, Pumpmakers DIY Solar Pump, iDE Treadle Pump, India Mark II Handpump, Blake Hydram Hydraulic Ram Pump, and iDE Rope Pump.
Manufacturing/Building Method
AIDFI manufactures the ram pumps in its own workshop to ensure the quality remains high, and does not use subcontractors. All materials are sourced locally, with exception of steel, which is imported from Japan. Interview with representative
Intellectural Property Type
Patent
User Provision Model
Development agencies, NGOs, or governmental agencies purchase the Ram Pump and its installation from AID Foundation Inc., for their specific projects in communities. The pump is then maintained by community-level technicians, who are local individuals trained on the Hydraulic Ram Pump system and paid by their community members. Interview with representative
Distributions to Date Status
By March 2019, more than 1000 ram pumps had been installed bringing easy access to water to ~270,000 people.
Pump type
Hydraulic ram pump
Power requirement (W)
None
Average flow rate (L/min at specific head)
Unknown
Maximum head (m)
240 m
Diameter (cm)
1.9 – 15.24 cm
Design Specifications
Ram pumps use the power available in flowing water at an elevation of a few meters to lift a small percentage of that water through a much greater height, to where it is needed. These pumps utilize gravity to collect water from stream sources into the pump\\\'s reservoir, creating a high pressure within the reservoir. The pressure opens a valve, creating pressure now against the air in the delivery pipe, which forces water out through the delivery piped system. AIDFI makes 10 different sizes of pumps with intake rates ranging from 10 to 2500 litres per minute. An average installation serves 50 households or 300 people. The most novel feature of the AIDFI ram pump is the use of a door hinge for the waste valve, which creates a steel-to-steel seal. This avoids the use of a gasket, which would quickly wear out in this high-impact valve. A further feature is a submersible box around the outflow of the waste valve, which prevents air entering the pump at the end of each cycle. This is important as if air enters the ram body it reduces the efficiency of the pump. The design developed by AIDFI uses mild steel for the body of the ram pump itself, including the final section of the drive pipe and air reservoir. Some critical parts are made from stainless steel to ensure they last throughout the expected lifetime of over 20 years. For small schemes, an individual pump is used, but for larger schemes, multiple pumps can be connected in parallel or in series (depending on the head and flow rate). The pumps can operate continuously and deliver water to a reservoir.
Technical Support
According to AIDFI, poor maintenance will result in failure of the ram pump. Technical support is provided by local individuals, who have been trained in maintenance and routine replacements necessary for the pump. Payment for service is provided via a community-managed fund. The community using the ram pump may collect a small fee monthly from each household to pay the technicians for maintenance of the system. Interview with representative
Replacement Components
Valves require regular replacement, every 3-6 months. Interview with representative
Lifecycle
Expected lifetime of over 20 years. Interview with representative
Manufacturer Specified Performance Parameters
AIDFI manufactures 5 different sizes of pumps with intake rates ranging from 10 to 2500 litres per minute, accommodating delivery heights of up to 200 metres. Pumps do not require any electricity or fuel to run.
Vetted Performance Status
Testing performed by the manufacturer determined that the product can pump up to elevations of 240 m.
Safety
Users must take appropriate precautions when maintaining the hydraulic ram pump.
Complementary Technical Systems
Water purification systems to improve drinking water quality.
Academic Research and References
Agbanlog, R.C., Chen, G., 2014, Mini Hydro-Electric Power Plant with Re-Circulated Water Power Source, Proceedings of the 2014 Industrial and Systems Engineering Research Conference
Tantingco, H., 2014, Alternative Approaches to Development: Social Entrepreneurship in the Philippines, thesis, Victoria University of Wellington.
Sapkota, B., Pandey, G., Kharel, U., Chaualgain, R.K., 2017, Design, Fabrication and Testing of Hydraulic Ram Pump with Water Reticulation System, Proceedings of IOE Graduate Conference, Vol.5
“Ashden • Climate Change Charity,” Ashden Climate Solutions, https://ashden.org/
“Our work,” AIDFI, https://www.aidfi.org/our-work/international/
“Home,” AIDFI, https://www.aidfi.org/
“Our work,” AIDFI, https://www.aidfi.org/our-work/
“Blake Hydram hydraulic ram pump,” Engineering For Change, https://www.engineeringforchange.org/solutions/product/blake-hydram-hydraulic-ram-pump/
W. Curt Beckmann, “Hydraulic ram pumps,” Appropedia, the sustainability wiki, https://www.appropedia.org/Hydraulic_ram_pumps “Goal 6 | Department of Economic and Social Affairs,” United Nations, https://sdgs.un.org/goals/goal6
“AIDFI Technologies | how the AIDFI Ram Pump Works,” YouTube, https://www.youtube.com/watch?v=WweCg35dCQo
Aidfi Ram Pump, https://www.techxlab.org/solutions/alternative-indigenous-development-foundation-inc-aidfi-ram-pump
Design , fabrication and testing of hydraulic ram pump with water …, https://www.semanticscholar.org/paper/Design-,-Fabrication-and-Testing-of-Hydraulic-Ram-Sapkota-Pandey/ed461f8f5b6f9de3c04b515008f77882e6ef4e0b
“#RELXENVIRONMENTALCHALLENGE2015 – explore,” Facebook, https://www.facebook.com/hashtag/relxenvironmentalchallenge2015?source=feed_text&story_id=430745037127275
“Our work,” AIDFI, https://www.aidfi.org/our-work/agos-ram-pump-project/
Compliance with regulations
Unknown
Evaluation methods
The product was evaluated for its performance in various operating conditions and the impact of adding a re-circulation system by the Institute of Engineering.
Other Information
The product was evaluated for its performance in various operating conditions and the impact of adding a re-circulation system by the Institute of Engineering.
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Give Us Feedback
hello everyone,
can i have a practical design for this pump as i am planning to fabricate it for small communities water supply here in laos.
thanks and more power!
Longtree