The India Mark II Pump is a robust conventional lever action handpump. It is designed for heavy-duty use, serving communities of 300 persons. The maximum recommended lift is 50 m.
The India Mark II is a public domain pump defined by Indian Standards and RWSN specifications. The India Mark II pump is not corrosion resistant.
It requires special skills for installation as well as for the maintenance; it is not considered to be a VLOM pump.
National Standards
Indian Bureau of Standards:
- IS 8035:1999 Handpump - Shallow Well
- IS 12732: Deepwell Handpump - Nomenclature Identification and Packaging of Components
- IS 15500 : Part 1 to 8: 2004 - Deepwell handpumps components and special tools
Description
The INDIA Mark II Pump is a conventional lever action handpump and is subject to Indian Standard IS 9301. This pump has a pump head, pump stand and a handle of galvanised steel. The down hole components exist of a brass lined cast iron cylinder with a footvalve and a plunger of brass.
The plunger has a double nitrile rubber cup seal, the rising main is a Ø32 mm GI pipe and the pump rods are of galvanised steel with threaded connectors. This pump is not corrosion resistant and should not be used in areas with aggressive water ( pH value < 6.5).
Local manufacturing
All “above ground components” have a potential for local manufacturing, all the other parts need a high degree of quality control to ensure a reliable operation. The cost of the tooling requirement is substantial and therefore the number of manufacturer will be limited.
Installation
The installation of the INDIA Mark II Pump need well trained area mechanics or a mobile team with lifting tackle and comprehensive tool kit.
Material
| Pump head | galvanised steel |
| Handle | galvanised steel |
| Pump stand | galvanised steel |
| Pump rods | galvanised steel |
| Rising main | galvanised GI pipe |
| Pump cylinder | cast iron / brass |
| Plunger/footvalve | brass |
Technical data
| Cylinder diameter (mm): | 63.5 |
| Maximum Stroke (mm): | 125 |
| Approx. discharge at about 75 watt input m3/h: | at 10 m head 1.8 |
| at 15 m head 1.3 | |
| at 20 m head 1.0 | |
| at 25 m head 0.9 | |
| at 30 m head 0.8 | |
| Pumping lift (m): | 10 – 50 |
| Population served (nos.): | 300 |
| Households (nos.): | 30 |
| Water consumption (lpcd): | 15 – 20 |
| Type of well: | borehole |
Maintenance
This pump has limited “Community Management Potential”, but it is reliable and popular with the communities. To service the INDIA Mark II Pump skills and tools are needed which exceeds the ability of a village-level caretaker. However trained area mechanics can successfully maintain the pump.
Remarks
The INDIA Mark II is a public domain handpump.
Further Information
- RWSN: India Mark Handpump Specifications (Revision 2-2007)
- RWSN: Manuals on Drinking Water Supply. Volume 7: Water Lifting
- RWSN: Installation & Maintenance Manual for the India Mark II Handpump
- WEDC Video on India Mark II
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