INDIAMARK 2

As befits a Pump which is so widely used in India & elsewhere in the world, this pump tends to be the standard against which other pumps are judged. The pump body parts are Hot-Dip Galvanized and as such are extremely durable over the years. India Mark 2 is the largest selling handpump in the word and is used in many countries of the world as the backbone of their community water supply.It is suitable for a depth of upto 50 meters. While it is a very sturdy pump, it is very important that the pump be manufactured to very exacting standards with strict adherence to quality control. Millions of India Mark 2 Pumps are lying broken and unused in the field.The main reason behind this is that low quality pump are purchased to save a few dollars and then these pumps break down very quickly and defeat the very purpose of their existence. The India Mark 2 Pumps is also available in the following versions:

• Force & Lift India Mark 2
• With a choice of Stands like Telescopic, 3 legged, Square pedestal , Vergnet type stand etc
• Extra Deepwell India Mark 2
• Ghana Modified India Mark 2.
Under the Handpump project of the UNDP/World Bank, extensive trials were conducted of twelve different Deepwell Handpumps from all over the world, including France, Holland, Canada, Sweden, U.K. , U.S.A. and India. The parameter for testing included :
• Ease of manufacture, installation and use.
• Mechanical and Volumetric efficiency
• Frequency of breakdowns and maintenance needed
• User acceptability
• Resistance to corrosion, abuse and neglect.
From these tests the India Mark II emerged as the best handpump amongst all

SALIENT FEATURES:

• The above-ground mechanism is fabricated from welded steel plates and sections for strength, and hot-dip galvanized for corrosion resistance.
• A chain and quadrant mechanism of the pump handle provides easy and accurate alignment of the connecting rod.
• The handle bar has a high mechanical advantage and is designed to counter balance the weight of the connecting rods to reduce the pumping effort required by the user.
• A unique pivot assembly (sealed ball bearings for the handle on a stainless steel axle) adds to the ease of operation and lower maintenance needs.
• 125 mm stroke length of the handle provides a water discharge of 17 liters per minute per 40 strokes with the cylinder installed in the range of the 15 m to 45 m below-ground level.
• The water tank assembly has an appropriate coupler to suit 32 mm NB medium class galvanized iron (Gl) riser pipes or µPVC pipes.
• Riser pipes are comprised of locally available standard 32 mm NB Gl pipes. Other options such as upvc, HDPE & FGP are also available.
• Connecting rods are of cold drawn bright steel bar with threaded and couplers and are electro-galvanized against corrosion. Alternatively stainless steel rods or FGP rods are also available for better performance.
• The cylinder is made from a cast iron casing with a polished brass liner and gun metal plunger and check valve components. Seals (pump buckets, valve seals and cap seals) are available in environmentally safe nit rile rubber. Other options include stainless steel, brass and µPVC. The cylinder is adaptable for use with Universal Cylinder components.
• With minor modifications this pump can be easily adapted for shallow wells, windmills and motorized operations.


DUTY: Suitable for use in bore wells having a static water level ranging from 12 meters to 33 meters.

STROKE LENGTH: 125±4 mm.

DISCHARGE: 17 liters per minute for 40 strokes.

CONSTRUCTION

A. HEAD ASSEMBLY: side plate, back plate, front end top and bottom end plates are made from 4 mm thick MS plates. The bottom flange is made from 6 mm thick MS plate.

B. HANDLE: Made from 32 mm square MS bar. Length of handle is 1170 mm.

C. CHAIN ASSEMBLY: 7 Pitch Chain Assembly welded with M12 Internal Threaded Coupler.

D. COVER: Made from 2 mm CR Sheet.

E. WATER CHAMBER: Top and bottom flanges are made from 6 mm thick MS plates. Pipe used is 150 mm NB medium class pipe. The riser pipe holder is made from solid bars to hold 32 mm riser pipes.

F. STAND: The stand flange is made from 6 mm thick MS plate. The pipe used is 150 mm medium 'B' class pipe. The angles are 40 X 40 X 6 mm.

G. CONNECTING ROD: 12 mm dia. MS bright rod / FGR rod in 3 meter length welded with coupler and half coupler electro-galvanized.

H. CYLINDER: 63.5 MM ID. Cast Iron cylinder with brass liner and cast iron caps of 32 mm thread with two nitride rubber cup washer (leather) and plunger rod. Option for PVC Cylinder


RISER PIPE: 32 mm Nominal Bore Galvanized Iron Pipes of Medium Class / FGP Pipes.