At present, the lubrication methods of
slurry pump
bearings are grease lubrication and thin oil lubrication. The advantages and disadvantages of these two lubrication methods are explained as follows:


Grease lubrication is a lubrication method in which grease is filled in the bearings. This method was used when the WARMAN pump was introduced. This lubrication method has been verified by the market for decades and has been operating well. It has been recognized by most slurry pump users. .


Thin oil lubrication is a lubrication method where the bearing is immersed in the oil bath to lubricate the bottom of the oil bath. In addition to some slurry pumps, this lubrication method is also used for some sewage pumps and chemical pumps. It is also a very mature lubrication method in the pump industry.


Comparison of the advantages & disadvantages of the two lubrication methods

Vertical Slurry Pump Model: SV/300T with Direct Discharge


Q: 1200m3/h, H: 15m, Speed: 600rpm


Flange: DN300, PN10

The role of the slurry pump is to transport the slurry out. Then it conveys the distance height and so on determines its head. Sometimes we will need high head slurry pump to slurry out. So what are the high head pumps. CNSME to bring you to talk about the high head slurry pump series.



1. HH type slurry pump. This is a high head slurry pump developed according to the AH series. Its highest head can reach about 100 meters. Double pump shell structure, the overflow parts are made of high chrome alloy.



2. ZJ type slurry pump. This series of slurry pump is to adjust the head by changing the size of the impeller. Its highest head can also reach more than 100 meters in some models.



3. ZGB series slurry pump. This series of slurry pump is a high efficiency, large flow, high head slurry pump. And if the head of a single pump can not reach, the series of slurry pumps can also be used in series to achieve the required head.



These three series of slurry pumps are the high head slurry pumps that CNSME has organized for you. Hope to help you

Follow these three key instructions to determine the flow rate:


If the production process specifies minimum, normal, and maximum flow rates, use the maximum flow rate as the benchmark.

If only the normal flow rate is given, allocate a margin:

For high-flow, low-head pumps (ns > 100), allow a 5% margin.

For low-flow, high-head pumps (ns < 50), allow 10%.

For pumps with 50 le; ns le; 100, use a 5% margin. Increase to 10% for poor-quality pumps or harsh conditions.

Convert weight-based flow rates to volumetric flow rates if necessary.

Accurate flow rate determination improves operational efficiency.

A lubrificação adequada reduz o atrito, previne a corrosão e prolonga a vida útil do rolamento. Os métodos incluem:

1. Lubrificação por gotejamento: Para rolamentos de baixa/média velocidade (<5 m/s). Ajuste a taxa de gotejamento (3–8 seg/queda). O excesso de lubrificação causa superaquecimento.

2. Lubrificação manual: Para cargas leves ou uso intermitente. Utilize tampas filtradas para evitar contaminação.

3. Lubrificação de anel de óleo: Para eixos horizontais (>50 mm de diâmetro). Use um anel para a relação largura/diâmetro <2.

4. Lubrificação por banho de óleo: Mergulhe os rolamentos parcialmente; nível de óleo abaixo do centro do rolo mais baixo.

5. Óleo Circulante: Para rolamentos de alta velocidade. O óleo filtrado é resfriado e lubrificado por meio de um sistema de bombeamento.

6. Lubrificação por spray: Para rolamentos de alta velocidade/alta temperatura. O ar comprimido fornece névoa de óleo durante o resfriamento.

Notas principais:

Mantenha a pressão da água de vedação e ajuste a embalagem para evitar vazamentos.

Manter os rolamentos limpos; temperatura de operação <000000>le; 65°C (máx. 75°C).

Garanta o alinhamento do motor com a bomba e inspecione os elastômeros de acoplamento regularmente.

Monitore as peças propensas ao desgaste e substitua-as imediatamente.

Escolha métodos de lubrificação com base na velocidade, carga e ambiente para otimizar o desempenho e a longevidade da bomba.