India Mark III Handpump manufactured as per IS: 13056:1991 is a modified version of India Mark II Handpump.

  The basic difference in India Mark - III Handpump and India Mark II Handpump is that the pump has Open Top Cylinder (OTC) which facilitates pulling out of plunger assembly and check valve assembly from the cylinder without pulling out the cylinder / riser main.

India Mark III VLOM (50mm OTC) Handpump is a modified version of India Mark III VLOM (65mm OTC) pump, where 50mm diameter G.I./P.V.C. Pipes are used instead of 65mm Pipes.

The design of the cylinder is simplified in this pump.

Features:

•  50mm Riser Pipe
•  Interchangeable Nitrile bobbin valves.
•  50mm open top cylinder
•  Single nitrile cup washer.
•  Pipe Centralisers.
•  Monolithic piston and foot valve assembly.

Advantages:

•  Lower Capital cost.
•  Suitable for use up to 60 metres.
•  Can be installed on 100mm borewells.
  
•  PVC Riser Pipe option.
•  Unlined wells can be used.
• Tools not required for servicing piston and foot valve.

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