German fluvo schmalenberger pump fluvo schmalenberger model fluvo schmalenberger price

fluvo schmalenberger pumps operate by using impeller rotation to induce centrifugal motion in water. Before starting the pump, the pump casing and suction pipe must be filled with water. Then, start the motor to drive the pump shaft, causing the impeller and water to rotate at high speed. The water undergoes centrifugal motion, is thrown toward the outer edge of the impeller, and flows into the discharge piping of the pump through the flow channel of the volute casing.

fluvo schmalenberger pump structure composition

The basic construction of a centrifugal pump consists of six parts: impeller, pump body, pump shaft, bearing, sealing ring, and stuffing box. 1) The impeller is the core component of the centrifugal pump; it operates at high speed with high output, and the blades on the impeller play a major role. The impeller must undergo a static balance test before assembly. The inner and outer surfaces of the impeller are required to be smooth to reduce friction losses of the water flow. 2) The pump body, also known as the pump casing, is the main body of the water pump. It provides support and fixation and connects to the bracket where the bearings are installed. 3) The function of the pump shaft is to connect to the motor via a coupling and transmit the motor's torque to the impeller, making it the main component for transmitting mechanical energy. 4) Sliding bearings use transparent oil as a lubricant; fill oil to the oil level line. Too much oil will seep out along the pump shaft, while too little will cause the bearing to overheat and burn out, leading to accidents! During pump operation, the maximum bearing temperature is 85 degrees, and normal operation is around 60 degrees. 5) The sealing ring is also known as the leakage reduction ring. 6) The stuffing box mainly consists of packing, water seal ring, packing sleeve, packing gland, and water seal pipe. The main function of the stuffing box is to seal the gap between the pump casing and the pump shaft, preventing water inside the pump from leaking out and air from entering the pump. It maintains the vacuum inside the water pump! When heat is generated by friction between the pump shaft and the packing, the water seal pipe supplies water to the water seal ring to cool the packing, ensuring normal pump operation. Therefore, inspection of the stuffing box requires special attention during routine pump operation checks. The packing should be replaced after approximately 600 hours of operation.

fluvo schmalenberger pump types

1) Single-stage pump: There is only one impeller on the pump shaft. 2) Multi-stage pump: There are two or more impellers on the pump shaft; in this case, the total head of the pump is the sum of the heads generated by n impellers. 3) Low-pressure pump: Pressure is lower than 100 meters of water column; 4) Medium-pressure pump: Pressure is between 100 and 650 meters of water column; 5) High-pressure pump: Pressure is higher than 650 meters of water column. 6) Single-suction pump: Also called a single-inlet pump, meaning there is only one water inlet on the impeller; 7) Double-suction pump: Also called a double-inlet pump, meaning there is a water inlet on both sides of the impeller. Its flow rate is twice that of a single-suction pump and can be roughly viewed as two single-suction impellers placed back-to-back. 8) Horizontal split-case pump: There is a joint seam on the horizontal plane passing through the axis centerline. 9) Vertical joint surface pump: The joint surface is perpendicular to the axis centerline. 10) Horizontal pump: The pump shaft is in a horizontal position. 11) Vertical pump: The pump shaft is in a vertical position. 12) Volute pump: After leaving the impeller, water enters directly into the pump casing, which has a spiral shape. 13) Diffuser pump: After leaving the impeller, water enters the diffuser vanes arranged outside it, then enters the next stage or flows into the outlet pipe. 14) Self-priming centrifugal pump: The pump shaft is below the surface of the suction pool; no priming is required at startup, allowing automatic startup. 15) Suction centrifugal pump (non-self-priming centrifugal pump): The pump shaft is above the surface of the suction pool. Before startup, the pump casing and suction pipe must be filled with water. Then, the motor is driven to make the impeller rotate at high speed. Water is thrown out of the impeller by centrifugal force, forming a negative pressure at the center of the impeller. Water from the suction pool enters the impeller under atmospheric pressure and is then thrown out of the impeller into the discharge pipe due to the action of the high-speed rotating impeller.

fluvo schmalenberger pump industry applications

Centrifugal pumps feature a compact structure, wide flow and head ranges, suitability for mildly corrosive liquids, multiple control options, uniform flow, stable operation, and low vibration. They do not require special vibration-damping foundations. Equipment installation, maintenance, and repair costs are low. They are widely used in industries such as electric power, metallurgy, coal, and building materials for transporting slurries containing solid particles, such as hydraulic ash removal in thermal power plants, ore slurry transport in metallurgical concentrators, and coal slurry and heavy medium transport in coal washing plants. When a centrifugal pump operates, the pump must be placed on land, the suction pipe in water, and the pump must be primed before startup. Due to structural limitations, submersible centrifugal pumps and slurry pumps require the motor to be positioned above the water surface while the pump is submerged; therefore, they must be fixed securely, otherwise the motor may fall into the water and be ruined. Moreover, since the long shaft length is generally fixed, pump installation and use are more troublesome, and application scenarios are subject to many restrictions.

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