This pump is an improved & VLOM ( Village Level Operation & Maintainence ) version of the India Mark 2 hand pump. Mark 3 has many common components with mark 2 like Head with Handle Assembly, Stand Assembly, Connecting Rods etc.
The main differences with India Mark 2 are :
- Riser Pipe. Mark 3 uses riser pipe of 65 mm Nominal Bore as compared to 32 mm in Mark 2. Therefore the cost of riser pipes is twice in Mark 3.
- Cylinder Assembly. This assembly is totally different from mark 2 . The bottom cap is to suit the check valve and top cap is to facilitate extraction of the plunger and check valve assemblies for repairs without lifting the riser main.
- Water Tank Assembly. The Water Tank in Mark 3 has a 65 mm steel socket to accommodate the 65 mm riser pipe.
This pump is suitable for a depth of upto 50 meters.
A Special Installation cum Maintenance toolkit is also available for these pumps.