About Centrifugal Pump
CENTRIFUGAL PUMP
Centrifugal pumps are turbomachines that are used for conveying fluids. The HM 150.04 unit can be used to study a centrifugal pump and to record a typical pump characteristic curve.
The experimental unit includes a self-priming centrifugal pump, a ball valve on the outlet side and manometers on the inlet and outlet side. It is driven by an asynchronous motor. The speed is infinitely adjustable by using a frequency converter. A ball valve is used to adjust the head.
In experiments, the operating behaviour of the pump as a function of the flow rate is studied and displayed in characteristic curves. The motors speed and electrical power are displayed digitally. Pressures on the inlet and outlet side are displayed on two manometers. The experimental unit is positioned easily and securely on the work surface of the base module. The pump draws in water from the tank on the base module. The flow rate is determined volumetrically by flowing back into the measuring tank.
The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.
Learning Objectives / Experiments
- Familiarisation with operating behaviour and characteristics of a centrifugal pump through experiments
- Recording the pump characteristic curve at a constant pump speed
- Measuring the inlet and outlet pressure
- Determining the flow rate
- Recording the pump characteristics for different speeds
- Power and efficiency curves
- Measuring the electrical drive power
- Determining the hydraulic power
- Calculating the efficiency
Specification:
- Investigation of a centrifugal pump
- Drive with variable speed via frequency converter
- Ball valve to adjust the head
- Manometers on the inlet and outlet side of the pump
- Digital display of speed and power
- Flow rate determined by base module
- Water supply using base module
Technical Data:
- Centrifugal pump, self-priming
- Max. flow rate: 3000L/h
- Max. head: 36,9m
Asynchronous motor:
Measuring ranges:
- Pressure (outlet side): -1...5bar
- Pressure (inlet side): -1...1,5bar
- Speed: 0...3000min-1
- Power: 0...1000W
Dimensions and Weight:
- LxWxH: 1130x660x680mm
- Weight: approx. 54kg
Versatile ApplicationsThe centrifugal pump is engineered for a wide array of uses, spanning water supply in agriculture, chemical processing, laboratory operations, and efficient water handling. Its compatibility with water and mild chemicals, coupled with its temperature tolerance up to 80C, enables reliable performance in diverse conditions. From small-scale laboratory tasks to larger industrial requirements, this pump offers flexibility and dependability.
Efficient and Durable DesignConstructed from high-quality cast iron and stainless steel, the Standard Centrifugal Series ensures longevity and robustness. The pump incorporates a mechanical seal for leak prevention and operates quietly, with noise levels under 70 dB. Its closed or semi-open impeller efficiently delivers flow rates from 12 to 70 LPM, making it suitable for precision tasks and demanding environments alike.
User-Friendly MaintenanceThe pump is designed for straightforward serviceability, simplifying routine maintenance and minimizing downtime. Base-mounted installation supports stable operation, while the accessible mechanical seal and core components allow easy inspection and part replacement. This makes the pump a practical and cost-effective solution for continuous, hassle-free operation.
FAQs of Centrifugal Pump:
Q: How do I select the correct model of centrifugal pump for my application?
A: To choose the right model, consider the required head (828 meters), discharge outlet size (2550 mm), flow rate (1270 LPM), fluid viscosity (up to 50 cP), and motor phase (single or three-phase). Evaluating the chemical compatibility and temperature requirements of your fluid is also crucial.
Q: What fluids are suitable for use with this centrifugal pump?
A: This pump is compatible with water and mild chemicals, making it ideal for tasks in agriculture, laboratory, and chemical processing industries. It is designed to handle fluids up to 50 cP viscosity and temperatures up to 80C.
Q: When is mechanical seal maintenance recommended?
A: Routine mechanical seal inspection should be conducted during regular maintenance intervals, typically every 612 months depending on the applications operating conditions and frequency of use. Promptly address any leakage or noise to prevent operational issues.
Q: Where can this centrifugal pump be installed?
A: The unit is suitable for base-mounted installation in indoor environments such as laboratories, factories, agricultural setups, and processing plants. Ensure the installation area is stable and provides protection from excessive moisture and dust to maintain IP55 protection.
Q: What is the service process for maintaining this pump?
A: Maintenance involves shutting off the power, ensuring the system is depressurized, then inspecting and, if necessary, replacing components like seals or impellers. The design allows easy access to key parts which streamlines servicing for routine and preventive maintenance.
Q: How does using this centrifugal pump benefit my operations?
A: With high efficiency, accurate flow rates, and easy maintenance, this pump optimizes fluid management, reduces operational downtime, and provides reliable performance even in demanding environments. Its low noise operation ensures a comfortable workspace as well.