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fuyangby@126.com
86 15188770013
When choosing a suitable slurry pump, head is one of the core parameters. Head refers to the energy obtained per unit weight of liquid through a pump, usually expressed in meters (m). If the head is selected too high or too low, it will affect the efficiency, energy consumption, and even service life of the pump. Therefore, it is crucial to scientifically select based on factors such as margin and pipeline losses, while clarifying the required head of the system.
Key points for selecting lift related models
The following are key selection strategies based on search results:
Actual head calculation:
The actual required lift is composed of three parts: vertical conveying height+pipeline length (including loss due to age)+conversion value of local resistance such as elbow valves. For example, the size of the pipe diameter, the number and angle of bends will all affect the total head demand.
Principle of matching nameplate lift:
The nameplate head of the selected pump should be as close as possible to the actual demand, with a deviation generally not exceeding 20%. This ensures that the pump operates in the high-efficiency zone, saving energy and being economical.
Response plan for insufficient head:
When the head of a single pump cannot meet the requirements, multiple pumps can be connected in series to increase the total head. However, it should be noted that the head of each pump should not exceed 75% of its maximum head to extend its lifespan and ensure cost-effectiveness.
Head margin setting:
Due to the wear and tear of the overcurrent components of the slurry pump over time, the performance gradually decreases. Therefore, when selecting, an additional head margin of about 10% should be added to ensure long-term stable operation near the rated working conditions.
Conclusion
When selecting, it is necessary to comprehensively consider the total head under actual working conditions and reserve about 10% margin. At the same time, priority should be given to operating the pump in the high-efficiency range (the deviation between the nameplate head and actual demand should be controlled within 20%). If the head is insufficient, it can be solved by reasonably connecting pump sets in series, rather than blindly selecting ultra-high head models.
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(Editor in charge: Slurry Pump https://www.fuyangpumps.com/)
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