LocksBuilding HardwareGlassGeneral Hardware
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Introduction |
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| Treadle water pump can do most of the work of a motorized pump, but costs considerably less to purchase. Because it needs no fossil fuel, it also costs less to operate. All the pond, lake and groundwater can be the water source. It can increase the area of water supplying by lengthening the intake pipe and discharge pipe. Properly adjusted and maintained, it can be operated several hours a day without tiring the users. | |
Features |
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Pump CylindersEach treadle pump has two cylinders which are made of engineering plastic. The diameter of a cylinder is 100.5mm and the height is 280mm. |
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Non-Return ValvesThe pump has two pairs of non-return valves, one pairof them are inside of the pump and the other pair of them are outside of the pump . The valve type is flapper type. It is made of circular rubber with the diameter of 90mm and the thickness of 2.5mm.PistonsThe piston assembly constitutes the piston rod (25mm x 6mm) and rubber cups with the thickness of 5.5mm.TreadlesThe treadles are made of channel steel materials with the lengh of 1000mm. The hinge is at the end.Treadle SupportThe treadle support ensures that the pump is portable and supports all other components of the pump. It is made of 50mm x 30mm square steel tube. |
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Advantages |
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| A series of new advantages is brought with the using of plastic pump body: |
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Fitting instruction and Maintenance |
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Cylinder Assembly |
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| Each piston has two rubber cups, one faces to the bottom of the cylinder and the other to the top. The pistons can be removed from the pump without detaching the rope which connects them together. When replacing the pistons, it is important to take care that the rubber cups not be damaged. And it is important to keep sealed. |
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Assembly of TreadlesConnect the end which has hooks with the piston rod, and the other end with the treadles’ support.Put the dowel into the shaft, when you fixed the treadle. Pump storage and care of HosesAfter irrigation is finished, roll up the hose properly in the field taking care not to drag it over sharp objects, and then carry it to the homestead. On no account should the hose be loosely folded and dragged over the ground from the field to the homestead, as this will decrease its endurance.Store the pump and its fittings in a safe location. Pay particular attention to prevent damage to the hoses and rubber components. Seal the pump intake and discharge pipes to stop rodents gaining access to the flap valves in the valve vox. When carrying or storing the pump, take care not to dent the cylinders. If this happens the piston will not move easily within the cylinders and water will leak between the rubber piston seals and the cylinder wall, making the pump less effective, also, try not to bend the piston rods. Replacement of Worn Piston SealsAfter a long period of use, the Rubber Seals on the pistons will wear down and water leaks past the piston, which reduces the performance of the pump.An obvious sign is that the piston is loose in the Cylinder. Untie the connecting Rope and remove the piston from the Cylinder. It may be possible to increase the diameter of the Rubber Seals by tightening the Clamping Nut on the bottom of the piston. If this does not expand them sufficiently, replace them. Two spare rubber seals are supplied with the pump. If proper replacement Seals cannot be obtained, rings of rubber can be cut from old gumboots or the side walls of an old tyre and clamped between the three metal piston disks. Debris in the Valve BoxMud or vegetation may be accidentally drawn into the Valve Box of the Pump through the Suction Pipe if no mesh strainer is used. To remove such debris, lay the Pump and remove the ten nuts that fix the baseboard to the bottom of the Pump.Take great care not to lose any of the nuts or washers. With the nuts and washers off, remove the Baseboard and Rubber Gasket so give access to the Valve Box. Remove any debris and at the same time check the condition of the Rubber Flap Valves, which can be easily seen. When the Valve Box is clean replace the Rubber Gasket, Wooden Baseboard and Washers, and retighten the ten nuts. |
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