• ZB Series Self-Priming Centrifugal Water Pumps System 1
  • ZB Series Self-Priming Centrifugal Water Pumps System 2
  • ZB Series Self-Priming Centrifugal Water Pumps System 3
ZB Series Self-Priming Centrifugal Water Pumps

ZB Series Self-Priming Centrifugal Water Pumps

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
1 set
Supply Capability:
1000 set/month

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1. Production Introduction for ZB Series Self-Priming Centrifugal Water Pumps: 
WZB self-priming pump is divided into single phase and three-phase asynchronous types with built-in protection device. The pump is divided into centrifugal impeller and worm casing structures with self-priming function. Single-face mechanic sealing is mounted between pump and motor."0" shaped oil-proof rubber seating ring is used at each stationary port as static sealing.

2. Application for ZB Series Self-Priming Centrifugal Water Pumps
This series pump is a new type of ideal economical pump, widely used in pumping water, increasing water pressure, garden irrigation, water supply for vegetable green houses, industrial mining enterprises and aquatic breeding fields etc.

3. Work Conditions for ZB Series Self-Priming Centrifugal Water Pumps
The pump can work properly and continuously under following operational conditions:
1.Medium is not corrosive.Sand contents should be max.0.10% by volume and granular size should be max.0.20mm.
2.Medium temperature shouldn’t be over 40°C and PH should be 6.5-8.5.
3.Power frequency should be 50Hz,single phase voltage 220V, three-phase voltage 380V,and voltage fluctuation should be 0.9-1.1 times than the rated.

4. FAQ for ZB Series Self-Priming Centrifugal Water Pumps

1. Are CNBM pumps available in DIY stores?

Yes, currently, we’re available for DIY stores all over the world.

2. Where do I have to send pumps for service?

You must send them to the CNBM PUMP Service Point or, after contacting Customer Care, to the CNBM PUMP service center in China.

3. Are your pumps acid-proofed?

To choose the right pumps for chemical applications, we do need further details on hydraulic operations as well as on the type, concentration and temperature of the liquid.

ZB Series Self-Priming Centrifugal Water Pumps

ZB Series Self-Priming Centrifugal Water Pumps


Q:Why is the flow of the pump too small will occur cavitation phenomenon?
Throttling regulation is to change the opening of the valve to change the flow of the pump, that is to say, to change the characteristic curve of the pipeline. The commonly used to regulate the flow of exports, because the entrance throttle makes reduce the inlet pressure caused by cavitation danger.
Q:What are the constant pressure pumps?
CatalogBooster pump definitionMechanical classification, methane booster pump, pneumatic booster pumpGas-liquid booster pumpAir booster pumpChlorine booster pumpWorking principlefunctionMechanical installationMechanical selection of booster pump definitionMechanical classification, methane booster pump, pneumatic booster pumpGas-liquid booster pumpAir booster pumpChlorine booster pumpWorking principle
Q:Water pump outlet valve sequence
Design specifications detailed manual instructions, divided into two cases:1, pump water first check valve, suitable for small caliber pipeline, gate valve to protect the non-return valve, not damage function;2, pump water out of the first gate valve, check valve for large diameter pipe, at this point valve easy to open and close;The setting of the check valve is mainly to avoid the high reverse speed of the pump and the condition of the submerged pump house. Set in the suction port of the pump, then stop the pump water flow will still affect the pump. In addition, the pump suction should try to avoid installing too many pipe fittings, so that the pump can maintain sufficient cavitation margin.
Q:What is the minimum continuous flow of a pump?
At'-- the allowable temperature rise of pumping medium,C- pumping medium specific heat, kj/ (kg DEG C);Ho- off dead center lift, M.Minimum continuous flow minimum continuous stable flow and minimum continuous thermal flow and the maximum value in the selection, or use the pump process, the minimum continuous flow process requirements must be greater than the minimum flow rate of the pump, otherwise it will cause the pump cavitation, vibration and noise, so that the pump parts damaged. If the minimum continuous flow the pump can not meet the minimum requirement's process, can install the bypass reflux device or reflux system in the pump pipeline, to ensure that the minimum continuous flow pump.
Q:How many millimeters is the diameter of the water outlet of the four inch pump?
This question is of no practical significance. The user does not care about this figure. The concern should be the nominal diameter, which is fitted with flanges and pipes. Moreover, the pump shell is cast iron, the inside diameter is not processed, and there is no matching parts, there is only one manufacturing size.
Q:How accurate is the metering pump?
In addition, when the oil supply is too large or the pipeline pressure rises unexpectedly, the volume of the liquid in the hydraulic chamber can be changed, thereby affecting the stability of the flow and reducing the metering accuracy of the pump. In order to solve the problem of how to stabilize the measurement accuracy of metering pump metering pump flow, how stable, the three valve device. The so-called actual refers to the combination of three functions including compensation, discharge and safety protection device or device supporting the hydraulic chamber, according to its action principle is different, is divided into automatic compensation and forced compensation two three valve device.
Q:What is the pumping property of concrete?
Pumpable concrete slump is generally greater than 160mm, the mortar content is too low, the maximum aggregate size of not more than 1/3 of the diameter of the pump pipe, sending process segregation, plugging in the pump.
Q:What are the conditions required for hydraulic pumps to complete oil absorption and compression?
2, the change of working volume is periodic, and in each cycle, the oil absorption process is changed from small to big, and the process of oil pressure is changed from large to small;3, suction oil cavity must be separated from each other without interference.
Q:How to maintain and repair the booster pump of pipeline pump?
Installation and use1. use rubber washer and bolt to connect the pump flange at both ends and the pipe flange. In order to use and maintenance convenience, in the pump inlet and outlet pipelines should be installed with a regulating valve.2. open the inlet control valve, so that water into the pump, in order to keep the cavity filled with liquid (otherwise it will damage the seal), close the outlet valve.3. turn on the power and make sure the correct turn.4. make sure the pump starts and runs after turning.5. adjust the opening of the outlet valve so that the pump runs near the design point, depending on the rated flow and lift of the pump. [for this reason, it is better to place a pressure gauge near the outlet flange). Note: this pump is strictly prohibited to run without water, so as not to damage the seal.
Q:Filter backwash pump for what use, what is the principle of work ah?
When the filter is in normal operation, the impurity will be trapped in the upstream of the filter (filter medium). As the accumulation of impurities, the filter media will be blocked, and the direct performance is that the circulation will decrease. Usually, when the flow drops to a set point (the industry is usually judged by the pressure drop),

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