Afridev Indus Hand Pump

 

The Afridev hand pump is a public-domain pump which can pump water from up to 45-60 meters below ground surface. This pump is designed with a "working barrel" which allows the piston to be extracted without removing the rising main. A special "hook" tool is required to extract the foot valve from the bottom of the cylinder. It is suitable for boreholes with casing sizes of nominal 100mm, 127mm or 200 mm internal diameter and Hand Dug Well.

Pump Type:Afridev deep well hand pump as per SKAT-HTN Switzerland specifications, with 50mm dia open top, UPVC brass lined cylinder assembly with extractable plunger and foot valves assemblies.

Recommended for water level setting depth:
up to 45 Meter.
Minimum ID of bore (mili meter) :
100
Approximate DischargePer Stroke:
440ml
Approximate Discharge per 60 Strokes/min:
24 liters
Approximate Discharge (Litres/Hour):
90 liters
PVC Riser Pipe =
63mm OD * 4.7mm Wall Thickness
MS/SS Connecting Rod Diameter =
10mm
Stroke Length=
225± 6mm

Note: Data given are recommendatory: There may be some variation under actual field conditions design and specifications subject to change without prior notice.

SALIENT FEATURES

  • Ideal VLOM (Village Level Operation and Maintenance). Designed and developed keeping in view .maintenance Problem.
  • Capable of lifting water from depths up to – approx 45 meters.
  • Fully fabricated steel structure duly Hot Dip Galvanized.
  • Adjustable Handle to suite varying installation depths.
  • Injection Molded special grade plastic bush bearings easy to replace at village level.
  • Interchangeable plunger & foot valves easy extract without removing riser pipe.
  • Non-corrosive underground components capable of handling corrosive water situation there by giving longer life.
  • Easy installation and inexpensive maintenance at village level. Women can handle easily.

CONSTRUCTION

The complete system of KAWSAR AFRIDEV Hand pump consists of four main sub assemblies briefly described below. 

PUMP HEAD ASSEMBLY

  • Fully fabricated steel structure duly Hot Dip Galvanized.
  • Adjustable handle providing different handle settings to suit different cylinder setting depths.
  • Conical flange with conical rubber grommet provides better holding grip on UPVC Riser Pipe.
  • Fulcrum & rod hanger pins are supported on special grade plastic bush bearing which are very easy to replace at a village Level.
  • Fully covered to avoid any contamination of water. Design offers a stroke length of 225mm.

CYLINDER ASSEMBLY

  • UPVC pipe 63mm (OD) x 4.7 mm thick lined from inside with seamless brass liner 50 mm I.D. x 700 long.
  • Interchangeable plunger and foot valves made out of
  • Interchangeable injection molded delrin with stainless steel.
  • Pick up device mounted on foot valves for easy extraction of Foot valve without removing riser pipe.
  • U-seal, bobbins steel and O rings are of nitride rubber and plunger rod of stainless steel and can be mild steel.
  • Larger dia extension pipe at the bottom of cylinder reduces silt and sand intake.
  • Sleeve is provided for plastic rope to pass for supporting the System during installation and maintenance.

RISER PIPE

Connects cylinder to pump head and is a passage for water. uPVC pipe 63 mm OD x 4.7 mm wall thickness x 2.9 meters long with socket-spigot cemented joint. Each pipe is provided with a rubber pipe centralizer to avoid contact with casing pipe.

INSTALLATION STRUCTURE

SPARE PARTS HAND PUMP

Rubber Cone
Flapper
Pipe Centerlizer
Rod Centerlizer
Small Ring
Large Ring
U-Seal
Bobin
Plunger
Bearing
Small Pin
Large Pin