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Features of Mixed Flow Pump

The pump’s performance range: flow 130~9000m³/h, head 3.5~22m. Simple structure, reliable use, easy installation, high efficiency, small body, light weight. Direct and variable actuations. The common movers are motor and diesel engine. Please note the model (power, rotating speed) of the mover so as to make sure of the norms of the clutch or the belt pulley. Viewing from the pump inlet, the impeller rotates counterclockwise generally (clockwise with 650HW-5, -7, -10 pump).

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Features:
1. Pump Component: Model HW pump mainly consists of pump cover, impeller, pump casing, shaft, muff and bearing body (aperture ≤350mm) or bearing stand (aperture ≥400mm) etc. parts (Fig.1 and 2).
2. Standard Design: The pump cover is connected to the pump casing and the water-in pipe separately. There should a proper interval between the planes of both pump cover and impeller, too small interval will produce friction; while too big will cause the pressured water inside of the pump to flow back greatly to have the pump efficiency lowered. The practically used proper interval is 0.3~0.7mm (push the pump shaft to the pump inlet) and the interval can be adjusted through increasing or decreasing the paper pad thickness.
3. Spare Parts Standard: The shaft seal is formed with packing, packing gland, packing ring and the packing box on the pump casing (no packing ring with 150HW and 200HW pumps) and functions to prevent air from being sucked into the pump and too much water from flowing out axially.
4. Highly Integrated: The muff is used to protect the pump shaft and can be replaced after getting worn out.
5. Bearing Refueling: The pump shaft is supported with a single-line centripetal ball bearing. The bearing can be lubricated with lubricating oil-with he oil amount controlled in between the marking lines of the oil leveler rod; also with lubricating grease-filled during pump assembly or during use by means of removing both front and rear covers.
6. Convenient of Water Diversion: The screw hole on the top of the pump casing is used to prime leading water or link a vacuum pump for exhaust leading water.
7. Convenient to Usage: To widen the pump’s range of use and meet with the users’ different requirements, cut the outer diameter of the impeller or use an impeller of different performance (expressed with letter “A” etc. Added).
8. Optional Accessories: The accessories of 150~350HW pump include inlet and outlet dead and flexible elbows, foot valve, belt pulley or clutch; and of 400~650HW pump include inlet and outlet dead and flexible elbows, check valve, belt pulley or coupling.
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    1. The weight of the pipeline should not be borne on the pump, otherwise the pump will be easily damaged.

      2. The pump and motor are of integral structure. The pump and the motor are an integral structure. It is calibrated by the manufacturer at the time of shipment, so there is no need to adjust the contract when installing it. This makes installation very easy.

      3. The foot bolt must be tightened during installation. The pump should be inspected at regular intervals to prevent it from loosening. To prevent the pump from vibrating violently when starting up and affecting the performance of the pump.

      4. Before installing the pump, check carefully whether there are any hard objects (such as stones, iron sand, etc.) in the flow channel of the pump that may affect the operation of the pump, so as to avoid damaging the overflow parts when the pump is in operation.

      5. For easy maintenance and safety in use. Install a regulating valve on the pump’s throttle and a pressure gauge near the pump’s throttle, and for high head pumps. To prevent water hammer. A check valve should also be installed in front of the outlet gate valve to cope with sudden power failure and other loss of power accidents, thus ensuring that the pump operates under suitable working conditions and increasing the service life of the pump.

      6. The pump is used in suction range situations. It should be equipped with a bottom valve, and the pipeline should not have too many bends in the mouth of the flume, and there should be no water leakage or air leakage in the same inch. To avoid affecting the suction performance of the pump.

      7, in order not to make impurities burst into the pump and block the flow channel to affect the performance. A filter should be installed in front of the pump’s flume.

      8, the installation of pipeline bary for the rotation of the pump rotor parts, should be no grinding sound or jamming phenomenon, otherwise the pump should be disassembled to check the reasons.