Duty: Suitable for use in bore wells having static water level ranging from 12 mts. to 45 mts.
Stroke Length: 125 ± 4mm.
Discharge: 17 liters per minute of 40 strokes.
A) Conversion Head: Side plate, back plate, front end top and bottom end plates are made from 4 mm thick MS plates. Bottom flange is made from 6 mm thick MS plates.
B) Handle: Made from 32 mm Square MS bar. Length of Handle 1170 mm.
C) Chain Assembly: 7 Pitch Chain assembly welded with M 12 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 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 in 3 meters length welded with coupler electrogalvanised.
H) Cylinder: 63.5 mm I.D. Cast-Iron cylinder with brass liner and cast iron caps of 32 mm thread with two nitrile rubber cup washer (leather) and Plunger rod as per IS 9301 - 1984.
Riser Pipe: 32 mm nominal bore galvanized iron pipes of medium class.
Maintenance/Repair:
A) Mobile team of minimum of 3 skilled person will be required.
B) The repair van has to carry all the special and standard tools.
C) The time involved for change of worn out cup washer will be minimum 1 to 1 1/2 hours depending upon number of Riser Pipes.

Details :
Salient Features:
Ideal VLOM (Village Level Operation and Maintenance) design developed keeping in view maintenance problem - can be handled even by women.
Capable of lifting water from depth up to-approx 45 Meters.
Non-corrosive underground components capable of handling corrosive water situation thereby giving longer life.
Light weight uPVC riser pipes; easy installation & inexpensive.
Adjustable handle to suit varying installation depths.
Inter changeable plunger & foot valves; easy to extract without removing riser pipes.
Two options for pedestal design are available:
a) Pedestal for concrete stand
b) Pedestal of India Mark II design with either3 legs mounting or flange mounting arrangement.
U-Seal, bobbins and 'O' ringsare of nitrile rubber and plunger rod of stainless steel.
10 mm dia x 3 Meters long mild steel hot dip galvanized rod with forged eye and hook connectors welded at both ends. This provides easy rod connections without use of any tool.
Each rod is provided with a rubber centralizer to replace at village level.
uPVC pipe 63 mm OD x 4.7 mm wall x 3 Meters long with socket-spigot cemented joint.
Each pipe is provided with a rubber centraliser to avoid contact with casting pipe.