• 125 mm stroke length of the handle provides a water discharge of 17 liters per hour with the cylinder installed in the range of the 15 m to 45 m below-ground level.
• The water tank assembly has the appropriate coupler to suit 65 mm or 50 mm NB Gl riser pipes. A special cone plate with rubber cone is available for installation of uPVC / HDPE / FGP riser pipes. The cone plate and cone can also be used to reduce stresses on the Gl riser pipe joint to the water tank.
• The Cylinder incorporates an open top cap and suitable plunger and check valve assemblies to facilitate their removal for maintenance without the need to lift the riser pipes out of the borewell.
• Cylinder is adaptable for use with Universal Cylinder components.
• Easy to install up to depths of 30 meters.  Use of a tripod and chain pulley block is recommended beyond this depth, if GI Riser Pipes are opted.

1. HEAD ASSEMBLY: Material of construction is same as in the Standard Pump but has a hole of 75mm dia. in the bottom flange.  Additional 6 mm Plate with 15 mm height collar and guide bush welded is supplied for easy removal of chain assembly during maintenance.
2. HANDLE: Made from 32 mm Square Mild Steel Bar. Length: 1170 mm.
3. CHAIN ASSEMBLY: 7 Pitch Chain Assembly welded with M12 Internal Threaded Coupler.
4. FRONT COVER: Made from 2 mm CR Sheet.
5. WATER CHAMBER: Same as Standard but welded with Riser Pipe Holder made from Seamless Tube to hold 65 mm. NB Riser Pipes.
6. STAND: The Stand Flange is made from 6 mm thick MS Plate. The Pipe used is 150 mm NB Medium Class Pipe for Normal Stand and for Telescopic Stand the Pipe used is 150mm NB, 175mm NB Medium Class.  The Angles are 40 x 40 x 6 mm.
7. CONNECTING ROD: 12 mm dia. MS Bright Rod in 3 meter length welded with M12 X 50 and M12 X 20 Internal Threaded Coupler. There are several options like Mild Steel (Electro-Galvanized), Stainless Steel & GFRP (Glass Fiber Reinforced Plastic) Connecting Rods are made exclusively by us as a result of our dedicated R&D.
8. CYLINDER: 63.5 mm. I.D. Cast Iron or µPVC Cylinder with Brass Liner with Top Cap suitable to be connected to 65MM NB Pipe and Bottom Cap suitable to receive pick up Foot Valve Plunger with two Nitrile Cup Washers, Plunger with Extended Thread arrangement to pick up the Foot Valve (Check Valve) and tripping the water while extraction of Plunger and Check Valve Assembly without removal of the 65MM. NB. G.I. Riser Pipes.  Plunger Rod made of Stainless Steel. The Upper Valve will be of two pieces. Cylinder can also be supplied in PVC, which again is an innovative concept, by BIAC’s R & D team.  This PVC cylinder, while imparting the same functions, as that of Cast Iron Cylinder is also lightweight thereby providing case of handling and enhances the life of the Riser Pipe.

2 1/2 Open top Cylinder Assembly with Extractable Check Valve PART DESCRIPTIONMATERIAL				Installation Details of Modified "VLOM" India Mark III Deepwell Handpump with open top Cylinder
PLUNGER ROD SEALING RING UPPER VALVE GUIDE PUMP BUCKET BRASS LINER CHECK VALVE BODY REDUCER CAP O RING TOP COUPLER PLUNGER YOKE BODY RUBBER SEATING (TOP) SPACER EXTENDED FOLLOWER CYLINDER BODY RUSH ROD WITH CHECK NUT RUBBER SEAT RETAINER RUBBER SEATING (BOTTOM) CHECK VALVE GUIDE CHECK VALVE SEAT		STAINLESS STEEL CAST IRON LEATHER GUN METAL RUBBER GUN METAL GUN METAL NITRILE RUBBER GUN METAL BRASS CAST IRON GUN METAL STAINLESS STEEL CAST IRON GUN METAL RUBBER GUN METAL RUBBER GUN METAL		INSTALLATION MARK FOUNDATION CEMENT CONCRETE MIX 1:2:4 COUPLER RISING PIPE CYLINDER ASSEMBLY CASING PIPE SPOUT MUST BE OVER A LEG

1. After the installation, one village level mechanic with helper can carryout the repairs.
2. Requires few simple tools and can be carried on a bicycle for repairs.
3. The time involved for change of worn out cup washer will be only 30 minutes, and no removal of riser pipe is required. The connecting rods alone will be pulled out along with plunger and check valve.
4. The Handle need not be removed during repairs.

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