Deepwell Hand Pump

Salient Features:
Reliable and proven community hand pump.
With minor modifications, it is capable of drawing water from operating depths of up to 45 Meters.
Long and heavy handle provides adequate mechanical advantage to reduce pumping effort thus enabling a child to operate this pump with ease.
Fully fabricated steel structure duly hot dip galvanized makes the above ground portion very sturdy and corrosion resistant.
Easy installation and inexpensive maintenance at village level with little training.
Stainless Steel handle axle supported on ball bearing makes the operation easy and trouble free.
Design provide adequate sealing of borehole thereby avoiding contamination of water by external sources.
Suitable for open well installations.
Can be adapted for use with windmill or for motorized operation.
Easy availability of spare parts

Construction
Pump Head Assembly (Above ground mechanism) consists of three sub assemblies: Conversion head, Water tank and Pedestal. Fully fabricated steel construction duly hot dip galvanized . Also available with different mounting arrangements.
Cylinder assembly Consisting of Cast iron body lined from inside with seamless brass liner of 63.5 mm I.D . Gun metal valve components and nitrile rubber cup seals capable of giving discharge of 0.4 litres per stroke of 125 mm. Brass / Stainless Steel Cylinder available in 3 different inner diameters of 50 mm, 63.5 mm and 76 mm to suit discharge requirements of 0.2, 0.4 and 0.4 liters per stroke.
Long and heavy handle provides adequate mechanical advantage to reduce pumping effort thus enabling a child to operate this pump with ease.
Connecting rod 12 mm dia x 3 Meters long mild steel electro-galvanized with hexagonal coupling.
Riser Pipe (Drop Pipe) 32 mm N.B. x 3 Meters long G.I. medium with socket at one end.

Performance Data
Minimum Bore Size 100mm
Stroke Length 125 mm
Cylinder setting depth range 9-45mm
Discharge per stroke 0.40 ltrs
Discharge per hour 0.8 m3
Different Cylinder sizes available to suit different discharge requirements

Variable Setting Depths
Solid Link Deepwell handpump for 9-21 Meters depths
Standard chain link Deepwell handpump for 24 to 45 Meters depths
Extra Deepwell handpump for 45-90 Meters depths

Corrosive Waters
Underground sub assemblies are offered in non-corrosive material to handle corrosive water situation.
Connecting rod of 12 mm dia x3 Meters long with coupling, made of stainless steel (AISI 304 grade).
Brass or stainless steel Cylinder assembly.
UPVC riser pipe 48 mm OD x 6 mm wall thick x 3 Metres long with threaded coupling welded on ends.