Jining Jiuzhong Machinery Equipment Co., Ltd.

*Vertical multi-stage centrifugal pump
D-type vertical multi-stage centrifugal pump is a new product developed by our company according to our country's standards for water supply and drainage of high-rise buildings and the National Fire Bureau. This type of pump adopts The excellent hydraulic model of high efficiency and energy saving has the advantages of high efficiency, high performance and wide range, which can better meet the user requirements. In addition, this type of pump adopts vertical and segmented structure and has safe, stable operation and long service life. Small footprint, safe and convenient maintenance
Model meaning
For example: D ()
- Nominal diameter of pump suction port
Vertical multi-stage segmented centrifugal pump
-Vertical multi-stage segmented hot water centrifugal pump
-Number of pump stages
[D series vertical multi-stage centrifugal pump] Conditions of use:
The medium used should have a kinematic viscosity similar to water / And there are no hard particles and no corrosive properties
. When the ambient altitude of the D vertical multi-stage centrifugal pump exceeds 30 meters, it should be mentioned when placing an order so that our factory can provide you with more reliable products
. Medium Operating temperature -℃~℃
, maximum system working pressure.
, ambient temperature should be lower than ℃, relative humidity should be lower than %.
Model Series Speed Efficiency Flow Lift Power Weight
r /% /
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[D series vertical multi-stage centrifugal pump] Product features:
D series vertical multi-stage centrifugal pump adopts domestic excellent The highly efficient and energy-saving hydraulic model has high efficiency, high performance, gentle curves and a wide operating range. It complies with the relevant regulations of the fire department and meets the needs of different users. The vertical multi-stage centrifugal pump adopts a vertical segmented structure and has smooth operation, low noise and long service life. , small footprint, easy installation and maintenance.
[D series vertical multi-stage centrifugal pump] Main uses:
D series vertical multi-stage centrifugal pump is mainly used for domestic water supply in high-rise buildings, constant pressure water supply for fire protection, automatic spray water, and automatic water curtain Water supply can also be used for water supply and drainage in factories and mines, long-distance water delivery for various equipment, and various production process water. The operating temperature of the medium of the D-type vertical multi-stage centrifugal pump does not exceed ℃. The operating temperature of the medium of the D-type vertical multi-stage centrifugal pump does not exceed ℃.
． Maintenance of centrifugal pumps
The shaft end seal of the centrifugal pump should be checked and adjusted frequently to reduce volume loss
When the centrifugal pump has been running for 10,000 years, it should be overhauled to restore pump efficiency
Promote the application of corrugations on centrifugal pumps Tube sealing technology completely eliminates leakage of multi-stage centrifugal pumps and improves volumetric efficiency.
． Clean the filter cylinder regularly and check the pipeline connections to ensure that the liquid inlet pipeline of the centrifugal pump is smooth.
． Strictly follow the operating procedures of the centrifugal pump. Before starting the pump, open the inlet valve, close the outlet valve, exhaust and vent, and check whether the inlet pressure of the pump meets the requirements. Prevent cavitation of the pump caused by low fluid supply pressure and insufficient flow.
． Regularly conduct pump efficiency testing on centrifugal pumps. For pump units with low pump efficiency, the reasons must be promptly found and corresponding measures must be taken to solve them.
When a centrifugal pump is used to pump a slurry flow containing materials of large, medium and small sizes in the liquid, the liquid is sprayed into the cylindrical chamber along the tangential direction to form a vortex and a part of the liquid is discharged from the chamber along the tangential direction to remove the liquid. The mud is axially sprayed into the chamber. The vortex separates large-sized materials from the rest of the mud and liquid. The remaining mud and liquid are removed from the chamber in the axial direction and sprayed into the inlet of the centrifugal pump. The material from the centrifugal pump is used. As the spray liquid that forms the vortex, it reduces the wear of the centrifugal pump impeller and improves the efficiency of the centrifugal pump.
The company has strong technical force, production technology, advanced testing equipment, complete quality, reliable management, scientific and wide variety. All production performances are strictly in accordance with relevant national standards and have passed the international quality system certification enterprise.
Factory address: Liying Industrial Park, Rencheng District, Jining, Shandong
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