Shigme Vertical Multi-Stage Centrifugal Pump
BL(T) series stainless steel multi-stage centrifugal pump (afterwards called pump) boasts characters of high efficiency, low noise, steady operation, etc. The hydraulic pump set adopts the non-self-priming vertical multi-stage structure, ensuring a compact body, easy installation, convenient operation and maintenance.
Email: info@scclearpure.com
Tel: +86-13699279286 (whatsapp)
Application Limits of Vertical Pump
Medium temperature: normal type: 0℃~68℃ hot water type: 0℃~120℃
Ambient temperature: +40℃
Max ambient pressure: 1.0MPa
Advisable to use motor of higher power in case that the density or viscosity of medium is above that of water.
pH: 5 to 8
Application Fields of Centrifugal Pump
Water supply | BL | BL T |
Filtration and transfer at waterworks | ● | ● |
Distribution from waterworks | ● | ● |
Pressureboosting in mains | ● | ● |
Pressure boosting in high-rise buildin g s, hotels, etc. | ● | ● |
Pressure boosting for industrial water supply | ● | ● |
Industry |
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Pressure boosting | ● | ● |
Process water systems | ● | ● |
Washing and cleaning systems | ● | ● |
Vehicle washing tunnels | ● | ● |
Fire fighting systems | ● | ● |
Liquid transfer |
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Cooling and air-conditioning systems(refrigerants) | ● | ● |
Boiler feed and condensate systems | ● | ● |
Machine tools(cooling lubricants) | ● | ● |
Aquafarming | ● | ● |
Transfer | ● | ● |
Oil and alcohol | ● | ● |
Glycol and coolants | ● | ● |
Water treatment |
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Ultra-filtration systems | ● | ○ |
Reverse osmosis systems | ● | ○ |
Softening, ionising, demineralizing systems | ● | ○ |
Distillation sys tems | ● | ○ |
Separators | ● | ○ |
Swimming baths | ● | ● |
lrrigation |
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Field irrigation(flooding) | ● | ● |
Sprinkler irrigation | ● | ● |
Drip-feed irrigation | ● | ● |
Certificate
CE
Electric Motor
Full-enclosed and ventilating two-pole standard motor
Protection class: IP55
Insulation class: F
Standard voltage Single phase 220V-50Hz Three phase: 380/400V-50Hz
Standard motor efficiency: 11kW to 45kW:IE3, other: IE2, specific efficiency value for below table
Energy Efficiency Standard (IEC60034)
Calculation of minimum Inlet Pressure
If the pressure in pump is lower than the vapor pressure of medium, cavitation will occur, which will affect the performance of pump. To avoid the cavitation and ensure the pump inlet has a minimum pressure, maximum suction head should be calculated as below:
H=Pbx10.2-NPSH-Hf-hv-Hs
Pb: Atmospheric pressure, bar (In close pipeline system, it can be considered as the system pressure);
NPSH: Net positive suction head, m (Value at maximum flow of Q-NPSH curve);
Hf: Suction pipe line loss (Value at maximum flow of corresponding pipeline);
Hv: Medium vapor pressure, m (Medium vapor pressure at corresponding temperature, the default medium is water, as shown in figure4 on the right);
Hs: Safety margin, m, general value is 0.5.
Calculation result: if H is positive, the pump is installed in suction way, otherwise, it is installed in downdraft way.
Note: It is not necessary to do above calculation under general conditions. Only when we use pump in the following situations do we need to calculate the H:
1. Medium temperature is high;
2. The velocity of flow is larger than rated value;
3. Suction head is big or inlet pipeline is long;
4. System pressure is small;
5. Inlet condition is bad.