63.5 mm cyl.: between 10-30 m
50 mm cyl.; between 10-50 m
Max. Stroke: 125 mm
Pumping lift: 10 - 50 m
Population served: ~ 300 people
Households: 30 – 50 hh,
Approx. discharge (75 watt input, Ø63.5 mm cylinder):
at 10 m head: 1.8 m³/hour,
at 15 m head: 1.3 m³/hour,
at 20 m head: 1.0 m³/hour,
at 25 m head: 0.9 m³/hour,
at 30 m head: 0.8 m³/hour,
Asumed water consumption: 15 - 20 lt/per capita
Type of well: borehole or dug well.
The India Mark III VLOM deep well hand pump design uses an open top cylinder, which allows servicing and replacing the cylinder components with out taking out riser pipes from a bore well. Use of the VLOM pump thus reduces requirement of heavy tools, skilled hands and time required for break down repair.
The India Mark III has similar configurations as the India Mark II, only the “down-hole components” were changed in order to improve the village level maintenance.The most important improvement is the “open top cylinder”, which makes it possible to remove the plunger and also the foot valve without lifting the cylinder and the entire rising main (65 GI pipe). Cylinders are available in 50 mm and 62.5 mm.
Since the cylinder can be serviced using simple tools, users including women can be trained for the repairs. Hence the pump is named as Village level Operation maintenance Pump.
India Mark III Hand Pump
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Features of India Mark III Manufactured by Aakash International
The India Mark III VLOM deep well hand pump is available in two options.
India Mark III 50 mm OTC VLOM Pump: The India Mark III 50 mm OTC VLOM PUMP has been design for use with 50mm OTC cylinder and 50 mm diameter riser pipes. The pump can be used either with GI or UPVC pipes. With GI pipes the pump can be installed up to 60 m. With the uPVC pipes the pump can be installed up to 45 m.
India Mark III 65 mm OTC VLOM Pump: The India Mark III 65 mm OTC VLOM PUMP has been design for use with 65mm OTC cylinder and 65 mm diameter riser pipes. The pump can be used either with GI or UPVC pipes. The pump can be installed up to 45m.
India Mark III(50mm OTC) VLOM Deepwell Handpump
Conforming to IS: 15500-2004 standard, India Mark III hand pump has open top cylinder (OTC), which facilitates pulling out of plunger assembly. It also assists in changing valve assembly from the cylinder without pulling out the cylinder. In this hand pump, 50-mm diameter GI/UPVC pipes are used.