Agricultural Pump

Salient Features :

• Ideal VLOM (Village Level Operation and maintenance) design developed keeping in view maintenance problems.
• Capable of lifting water from depths upto-approx 45 Metres.
• Fully fabricated steel structure duly hot dip galvanised.
• Adjustable handle to suit varying installation depths.
• Injection moulded special grade plastic bush bearings easy to replace at village level.
• Interchangeable plunger & foot valves easy to 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-even women can handle.
• Light weight UPVC riser pipes and hence easy to handle. 

Pump Head Assembly 

• Fully fabricated steel structure duly hot dip galvanised. 
• 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.
• Two options for pedestal design are available : Pedestal for concrete stand and Pedestal of India Mark II design with either 3 legs mounting or flange mounting arrangement. 

• Fulcrum & rod hanger pins are supported on special grade plastic bush bearing which are very easy to replace at village level.
• Fully covered to avoid any contamination of water. 
• Design offer a stroke length of 225 mm. 

INDKOYO brand submersible pumps are available in the range of V4, V5 & V6. INDKOYO's design is prepared by Indo Malaysian Joint Venture Group. Newly Launched V6 (Metal) Submersible pump is the result of the constant research, development and experience. The pump is having many unique features such as 15 Mtr. Head per stage, extremely long life, attractive outlook, higher efficiency and above all its ECONOMICAL operation. 

INDKOYO is manufactured from high quality of raw material e.g. its Bowls made from SS 304 grade non magnetic, non corrosive, providing permanent smooth surface to the flow of water. The Bowl-impeller set is designed hydraulically to match with eachother for the specified flow, head and load so as to achieve the maximum efficiency with minimum mechanical and hydraulic losses. 

The maximum accuracy and precision of components make the INDKOYO pump quit DISTINCTIVE. The complete INDKOYO pump set is passed through stringent inspection and testing before it reaches to our valued customer. 

The technical know-how combined with hard efforts make the INDKOYO superior in reality. With a view to bring REVOLUTION in the field of manufacturing submersible pumps our technical team has made hard efforts to give our customers much better results then ever. This technology is acclaimed by the customers and that has motivated to even better in future. 

Technical Specification 

Motor: 

• Body is of S.S. 304 Grade heavy duty pipe from top to bottom
• Stator- Rotor are of imported high silicon stamping which minimize the iron losses.
• Copper strip (Rod) of Rotor is of pure E.C. Grade Copper as per IS Std.
• Winding wire is of tapping type having high resisting insulating capacity upto 5000 V.
• Tofflan plate and S.S. bearing as well as fibber plate & Bronze bearing are used
• Bushes are as per IS Std. 

PUMP V-6 : 

Bowls, NRV, Suction, shaft, couple, clamping strips, stud/nuts etc. are made from S.S. 304 Grade nonmagnetic noncorrosive material. This pump can be run in sandy or muddy water without any wear & tear. 

PUMP V-5&V-4:

• Bowls made from NORYL GFN2-701 are inserted in S.S. 304 Grade pipe.
• V-4 Submersible Pumpset are also available in BRASS Models (ie. NRV, Suction, Housing, base, etc. are made from brass) 

SEFEX Presurized Treadle Pump is a foot operated two cylinder pump and uses Treadles to engage both the operator's legs and full body weight. It can be used to lift water from bore wells, canals, ponds, streams etc. and it is designed to irrigate small area of crops. Water can be delivered overhead Tank upto 16 Mtrs height from ground level. The whole body and other metal parts of the pumps are hot dip galvanized, to minimize the effect of rusting on the metal parts as these parts are always in contact with water. It makes this pump more durable. 

The pump is human powered to eliminate the fuel and oil costs associated with motorized pumps and reduces the crop damage and income losses associated with mechanical breakdowns and interruption of the fuel supply. The treadle pump is simple and efficient. If the pump is properly adjusted and maintained, the pump can be operated several hours a day without tiring the operator. The leg muscles, which are the most powerful part of human body, provide the power to drive the pump. Moreover, the pump is operated in a natural way, as walking. 

The treadle pump can raise water by suction and by pressure, just like a motorized centrifugal pump. It can also pump water through a distribution pipe. The pump can be used by one adult only. The total vertical distance that water can be pumped is limited by the total weight of the pump operator. One adult weighing 50 Kg. can pump water up to 8m to 16m vertically. 

PRODUCT GENERAL DATA 

Following two types of models are available. 

Galvanized Steel Treadle Pump with Cam & Chain arrangement 

• Suction Lift : 7mtrs maximum
• Delivery Head : Upto 16mtrs
• Discharge : 1400-1600 liters/hour 
• Irrigable Area : Upto 2 acres of land

B) Galvanized Steel Treadle Pump with Pulley & Steel rope (Figure A). arrangement (Figure B). 

• Suction Lift : 7mtrs maximum
• Delivery Head : Upto 16 mtrs .
• Discharge : 2000-2400 liters/hour
• Irrigable Area : Upto 2 acres of land 

CONSTRUCTION OF PUMP 

Essentially the pump has following parts

• Pump body having two parallel cylinder and valve box, duly hot dipped galvanized.
• Two-piston assembly fitted with Cam & Chain arrangement, duly hot dipped galvanized Fig A
• Two-piston assebly duly galvanized with CI Pulley & Steel rope arrangement Fig B.
• Two mild steel Treadles rectangular hollow pipes, duly hot dipped galvanized
• Rubber Valves & Cups (Buckets) v) T-Handle having hollowed pipe, duly hot dipped galvanized. 

PUMP BODY 

The cylinders of the Treadle pump are made from mild steel 2mm sheet, which are rolled around and subsequently arc welded, while the Mandrel remains inside the cylinder. This method produces cylinders, perfectly round & smother. The first part of the pump body is the valve plate, which is the top of the valve box to which the Cylinders are welded. The cylinders are placed at the centre on the valve box. This is done to provide room inside the cylinders for seating of the Inlet/Outlet valves. The whole body and other metal parts are hot dip galvanized to minimize the effect of rusting on the metal parts as these parts are always in contact with water. 

PISTONS 

The pistons of the Treadle pump consist of two Rubber cups, which are held together by a z clamp at the end of the piston rod. A steel washer is placed between the two Rubber cups. The upper cup faces towards the top of the cylinder. It seals the Piston when the pump is acting on the suction stroke, while the Piston is moving upward. The lower cup faces towards the bottom of the cylinder, it seals the piston when the pump is acting on the Pressure stroke, while the piston is moving downward. Since the Rubber cups are flexible, they expand against the Cylinder as a result of atmospheric pressure (for the upper cup), and the pressure of the water inside the cylinder (for the lower cup), thereby sealing the piston.

VALVES

Four rubber valves are used in the Treadle pump, (one Inlet and one Outlet valve in each cylinder) all the valves are simple Check valves which open/close in response to the water pressure acting upon them. The Outlet valve opens away from the cylinder and lets water out of the cylinder when the piston is moving down ward. The Inlet valve opens in to the cylinder and lets water in to the cylinder when the piston moves upward. The two Inlet valves draw water from the Inlet chamber of the valve box that connects it with the Intake pipe. The two Outlet valves discharge water into the outlet chamber, connected to the outlet pipe of the pump.

TREADLES 

Treadles are made of rectangle hollow pipe, with broad chequered plates, duly hot dipped galvanized to provide firm grip to user's foot.

CAM & CHAIN ARRANGEMENT (FIG. A)

A cam system has been introduced for up and down motion of Treadles. Cam is fabricated of mild steel plate/pipe with Plastic bush for free and friction less movement of Treadles. Chains are used to link treadles with pistons. Axle shaft made up of Mild Steel round is used with Plastic Bush for free movement of Cam & Chain arrangement.

5a. PULLEY & STEEL ROPE ARRANGEMENT (FIG.B)

A pulley & steel rope system has been introduced for Up and down motion of Treadles. Pulley is made up of Cast Iron round for free and friction less movement of Treadles. Steel rope is used to link Piston. Treadles & Pulley fitted on Axle shaft of the fixed block.

T-HANDLE

T-Handle is made up of mild steel hollow pipe Round/Square duly of dipped galvanized.

FOOT VALVE 

At several occasion, users find problems of "priming" in Treadle pumps during start up which consume great deal of their energy. This problem can be eliminated by using a foot valve at the bottom of Suction Hose.

Operation Features :

• The Treadle pump follows the basic lifting principle of the hand pump. It consists of two barrels, pistons and treadles and is operated by one person, who manipulates his/her body weight on the Treadles.
• The discharge of water ranges between 1400 - 1600 liters Fig. A. and more than 1600 liters Fig. B. per hour.
• The pump is easy to install, requires little maintenance and can easily be repaired by the user.
• Minimum operating costs, as it requires no fuel or electricity.
• The  SEFEX Treadle Pump effectively irrigates land holdings.
• SEFEX Treadle Pump is best suited to water levels less than 7m below the ground level & has a total pumping head of 15m. Its use is recommended to lift water from ground or surface water-rivers, ponds, streams, canals, wells etc.
• SEFEX Treadle Pump is one of the cheapest irrigation systems currently available. 

PEDALING TO PROSPERITY

• For millions of farmers the Treadle pump can bring a sea change to their lives.
• It gives them ownership of water-crucial for a successful harvest.
• It is more efficient, more affordable and most appropriate to their needs.
• It provides an assured access to water, freeing farmers from the vagaries of nature or erratic electric and diesel supply.

A SHEAF OF BENEFITS

• Can push water uphill as well as simply pulling it from the source.
• Can be used on steep sloping land where the water source may be at the bottom.
• Ownership of water-crucial for a successful harvest.
• Greater efficiency than traditional methods.
• More affordable than diesel and electricity-driven pumps sets.
• Assured access to water without being subjected to the vagaries of nature and erratic electricity and diesel supply.
• Flexibility to grow a variety of crops, which have different irrigation needs.
• Easy operation in many cases the pump is owned and operated independently by women.
• Easy self-maintenance.
• Self-reliance a tool, which give farmers a just return on their labour. 

SPARE PARTS 

Following recommended spare parts are required with each pump for two years operation

• Piston Rubber Cups / Seal-4 Nos.
• Flap valves - 4 Nos. 

TOOLS AND ACCESSORIES 

Following recommended tools & accessories are required with each pump for two years operation :

• Engineering type screw driver (250mm) which would enable field maintenance of the pump - 1 No.
• Appropriate steel clamps of sufficient diameter to fix suction and delivery hoses-2 Nos. 

MANUALS 

One set of Installation, Operation and Maintenance manual in English language shall be supplied with each pump. 

HOSES RECOMENDED 

We recommended that the Pump should always be procured along with Suction & Delivery Hoses so that user receives right type of Hoses, in order to achieve more satisfactory performance. Please Note : "Sefex" make this pump complete with Suction & Delivery Hoses. We are well known for the quality products. We manufacture products related with Water management. We are exporting our products worldwide. "Sefex" is the first organization which was accredited with ISO certification for hand pump's manufacturing. Apart from hand pumps like India Mark II, India Mark III, Afridev, Malda, Walimi, Direct action Tara shallow well etc. "Sefex" also makes uPVC Casing pipes/ Strainers, Rigid PVC Pipes, Micro Irrigation systems etc. (including Rain Guns.) and Pressurized Galvanized Steel Treadle Pump to irrigate small area of crops. Presently "Sefex" is the only organization manufacturing Treading pumps complete with Suction & Delivery Hoses, under "Sefex" brand. 

Vertical Turbine Borehole Pumps : 

• High Efficiency 
• Easy to Install and Dismantle
• Minimum Maintenance Costs-no Attention Required Whilst Pump is Running
• Driving Power Requirements are Reduced to a Minimum
• All Parts are Replaceable 

The Discharge Head

The Sefex drive and discharge head is made from high grade cast iron and it is mounted at the top of the borehole or well. The head carries all the column pipes which are linked through the head to its horizontal discharge outlet. Inside the discharge head a generous area is provided to allow easy flow of water - this also helps to reduce friction losses to a minimum. 

The head shaft passes through the whole depth of the head and is connected to the line shafting which transmits the rotary drive to the impellers. Lubrication of the bearings in the discharge head is effected by periodical injection of grease or circulation of oil. The stuffing box is conveniently located in the head and is easily accessible for servicing. 

Adjustments to the impeller are made by means of a regulating nut on top of the head. A non reversible type pulley is fitted dowels block any reversal motion as soon as the pump stops rotation a clockwise direction. 

The construction of the head allows various alternative drives to be used directly coupled, flat or V-belt, and right angle gear type using flexible shaft or pulley

• Pulley
• Adjusting nut
• Boaring housing assembly
• Head frame
• Lock nut
• Head shaft
• Top bearing
• Bearing Spindle
• Bottom bearing
• Stuffing cover
• Stuffing
• Priming Funnel 

The Column Stage

Each stage includes :

One part with two forged and machined flanges welded on each end. The pipe is of standard length (2.5 m or 3m according to customers Requirement)

A top quality stainless steel transmission shaft, ground and polished and tested for perfect straightness so that it ensures minimum vibration and longer bearing life.

The shafts are connected by couplings. A spider bearing assembly provided with a special water lubricated rubber center bearing is bolted between the pipe flanges at intervals (2.5 m or 3 m according to the column length) to ensure accurate concentricity and alignment of the line shaft. These bearings are primed by means of the funnel mounted on the discharge head. Priming is only necessary when the pump has been standing idle.

• Top column flange
• Spider bearing
• Column shaft
• Column Pipe
• Coupling
• Rubber bearing 

The bowl assembly

This section, the HEART of the pump, is of the multi-cellular type and is always submerged below water level. Of a very practical design, it is especially suitable for narrow wells and boreholes. 

The helico-centricugal type impellers are made of high grade cast iron and balanced. They are built up on an extra strong stainless steel shaft and securely locked in position by a double cone tightening systems. 

A water lubricated rubber bearing is fitted into each of the bowls between the impellers - these bearings also act as stabiliser guides for the shaft.

The curve of the bowl diffusers is designer to allow water to flow freely through the bowl stages without turbulence - this reduces friction loss to a minimum and gives the maximum output. 

• Top bowl
• Taper impeller cone
• Intermediary bowls
• Suction manifold
• Strainer 
• Lock nut
• Bowl rubber bearings
• Impellers
• Footvalve assembly 

Typical applications available: 

• Semi-crossed, flat belt driven Pump- by mens of a slow speed vertical Diesel engine.
• V-belt driven Pump - powered by an electric motorl Both motor and pump are mounted on a fabricated steel base. 
• Pump fitted with right angle gear drive - powered by a multi-cylinder medium speed Diesel engine. Alternatively it could be driven by an electric motor. 
• A further semi-crossed, flat belt driven Pump operating on an open well-driven by a slow speed horizontal Diesel engine. (A semi-crossed V-belt could replace the flat belt).