Vertical Multistage Centrifugal Pumps with High Quality

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Shanghai
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1 unit
Supply Capability:
500 unit/month

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Product Description:

FEATURES:

Vertical Multistage grundfos water Pump is the latest model with the features of energy-saving and less space demand, easy to install and has stable performances.

 

1. With its 304 stainless steel shell and wear-resistant axle seal, there is no leakage and it can live long service life.

 

2. With hydraulic equilibrium to balance the axial force, the pump can run more smoothly, less noise, which can be easily installed in same level pipelines, enjoying better installation conditions than DL model.

 

3. With these features, GDL Pump can easily meet the needs and requirements for water supply and drain foe high building, deep well and firefighting equipments.

 

Flow range:                                       1.4-1 94.4CBM/h

Head range:                                      20-230m

Speed:                                               2900r/min

Maximal pressure of system:           2.5MPa

Medium temperature:                      -15~°C+120°C

Environment temperature:               ≤+40°C

Motor protection level:                     IP44, IP54

Insulation grade:                              B, F rank

Rotation direction:                           Clockwise

 

APPLICATIONS:

Domestic water supply for buildings

Fire water supply for buildings

Water supply equipments

Water supply for boilers

Water circulation and boosting for industry

Other clean fluid transportation

 


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Q:How to select hydraulic pump?
3. efficiencyVolume efficiency, for hydraulic pumps, is the ratio of actual flow to theoretical flow. A hydraulic motor is the ratio of its theoretical flow to its actual flow.Mechanical efficiency, for hydraulic pumps, refers to the ratio of theoretical torque to actual input torque. The actual output torque of the hydraulic motor is theoretical torque to overcome the torque after friction, so the mechanical efficiency is the ratio of the actual output torque to the theoretical torque.
Q:Centrifugal pumps for normal operation, is it reasonable to install valves on their inlet lines?
Submersible pump is best in the water, if dry pumping will cause burns.
Q:How to install, operate and maintain the pipeline booster pump?
When the pump leaks, check it immediately to prevent leakage. If it leaks with the motor connection, replace the mechanical seal. Check that the power is connected. Is the supply voltage consistent with the operating voltage of the pump?. If the above a and B are normal, please remove the pump, open the pump cover, remove the foreign body in the pump, and then pump the lid on, and then tighten it to normal.No water pump, pump installed in the tap water pipeline, such as tap water level in the pump impeller on the plane (horizontal installation) or center line (vertical) below, you should turn off the power supply, to tap water level rise more than the impeller plane or the center line, connected to the power supply, to avoid mechanical damage (automatic no need to turn off the electric type). When the pump used in pumping wells, please check whether the water inlet pipe leak; pump cavity storage is not enough, should be filled with water, whether the suction process is too high, proper adjustment. Check whether the inlet and outlet diameter is too small or blocked. Automatic type after a period of time, there may be automatic failure phenomenon, mainly stainless steel and other metal products in pipes, long-term precipitation to shut off the power supply after unloading, unscrew the top screw, remove the plastic sheet to be cleaned, and then, according to the original reset, the normal debugging, can be re used.
Q:Why should the pump be closed when the centrifugal pump is started?
Therefore to close the outlet valve, the pump during starting output water, the minimum pump power, when the pump reaches the rated speed, slowly open the outlet valve, gradually increase the flow of water, the motor current is gradually increased to the rated current.
Q:Must the water pump in the tank be all soaked in water?
Need a submersible pump in the water, but it is not entirely like this, I have to work for a long time no problem in water, but there is a problem you should pay attention to the water pump, at least in half, or stop when the smoke is not on water.
Q:Fire pump and shower pump flow head selection, high resolution.
2, the volume is greater than 10000 is less than 25000, the minimum water consumption of indoor fire hydrant is 15L/s
Q:Is the diaphragm pump and the drain pump one?
First of all, there's something wrong with your concept.Diaphragm pump is in accordance with the way the pump classification, drain pump is in accordance with the use of pumps classification.
Q:What should I pay attention to when buying a pump?
Two, the first choice of large and medium-sized professional manufacturers, and through the quality identification of relevant departments, the market credibility of the better models, but also to the professional quality inspection institutions consultation.Three, check the motor grounding device for electric pump, water pump and motor axis, the motor should be in a proper position is provided with a grounding screw, and the grounding screw are arranged near the ground; grounding device of small submersible pump should be reliable and grounding wire, grounding wire cables should have the obvious grounding mark the flag should be in use; the motor is not easy to be worn during the period. This is one of the important safety indexes of electric pumps.
Q:How to distinguish the flow and displacement in the hydraulic pump? What's the difference between the two?
For example, once you sprinkle water from the tank to the ground, one shot of water is 1000 milliliters, which is equivalent to displacement, once (pump turn) 1000 ml.,
Q:What is a water pump coupling device?
The water pump coupling device comprises a coupler, a coupling flange, a guide rod and an upper fixing plate, wherein the contact surface of the coupling base and the coupling slide plate is provided with an annular groove, and a soft sealing gasket is tightly fixed on the groove. By adopting the structure, the coupling contact surface of the coupling slide plate and the coupling base is sealed firmly by an annular sealing groove

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