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The Extra Deepwell Handpump (EXD) is almost the same as IM ll handpumps but I with the certain required modification to lift water from beyond 45 mtrs depth 0 and upto 90 mtrs depth. Modifications done as under :-
(a) Heavier head handle assembly. Handle assembly provided with T-bar and additional weights recommended for upto 90 mtrs installation depth. Weight can be fixed on the T-Bar depending upon the installation depths as mentioned below.
(b) The EXD Cylinder assembly has three cup washers instead of two nos. As required in IM II.
PUMP HEAD (above ground pumping mechanism) Consisting of head handle assembly with T-bar and Counter weights water tank and pedestal fully fabricated in mild steel & duly hot dip galvanised . Available with different mounting arrangements, such as normal three Leg Pedestal suitable for 100mm dia bore hole, Telescopic three Leg Pedestal for l50mm dia bore hole & rectangular flange mounting arrangements.
CYLINDER ASSEMBLY consisting of cast iron body with brass sleeve of 63.5 mm dia, gun metal valve components and two nitrile rubber cup washer and fitted with reducer cap. Discharge 12ltrs/40 strokes in a minute & in one hour water yeild would be approx. 720 ltrs.
Options - SS Cylinder in AlSI 304 grade available.
CONNECTING ROD of 12mm dia mild steel electro-galvanised, in three meter lengths with welded hexagonal coupling of size Ml 2x50mm on one end and Ml 2x20mm on the other end.
Options - SS Connecting Rod of AISI 304 grade with loose couplings available.
RlSER PIPE (DROP PIPE) of 32mm N.B.G.l. medium in three meter lengths with socket at one end and thread protector cap on the other end.
OPTIONS - Also available SS Riser pipe of 38mm 0.0. x l .5/2mm wall thickness in SS AISI 304 grade with welded male coupling on one end and female coupling on other end.