Transfer Pump Horizontal Multistage Pump

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Shanghai
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TT OR LC
Min Order Qty:
1 set
Supply Capability:
1000 set/month

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Product Description:

Horizontal Multistage Centrifugal Pump with Lowest Price


Motor
A. TEFC motor 2-pole
B. Protection class: IP 55
C. Insulation class: F
D. Standard voltage,
50 Hz: 1*220-240V
3*220-240V/380-415V
60Hz: 1*220-240V
3*220-240V/380-415V
E. Single phase motor (max): 2.4kW

Operation condition
A. Liquid temperature:
Normal temperature: -15oC~+70oC; Hot water type: -15oC~+110oC
B. Ambient temperature: Up to +40oC
C. Max. Operation pressure: 10 bar
D. Max. Inlet pressure is limited by max. Operation pressure.


Curve conditions:
Following conditions are suitable for the performance curves shown above:

*All curves are based on the measured values of 50Hz: constant motor speed 3500r/min;
*Curves tolerance in conformity with CE;

*Measurement is done with 20 ℃ are-free water, kinematic viscosity of 1mm ² /sec;
*The operation of pump shall refer to the performance region described by the thickened curve to prevent overheating due to too small flow rate or overload of motor due to too large flow rate.





Model

CHL2

CHL4

CHL8

CHL16

CHL8

CHL16

Rated flow(m 3 /h)

2

4

8

16

8

16

Flow range(m 3 /h)

1~3.5

1.5~8

5~12

8~22

5~12

8~22

Max pressure(bar)

5.5

4

5

4

5

4

Motor power(kw)

0.37~0.75

0.37~0.75

0.75~2.2

2.2~3

0.75~2.2

2.2~3

Temperature range( o C)

-15~+110

Max efficiency(%)

46

59

64

70

64

70

Outlet

G1

G1.25

G2

G2

G1.5

G1.5

Inlet

G1

G1

G2

G2

G1.25

G1.25



Transfer Pump Horizontal Multistage Pump

 


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Q:Variable flow variable frequency water pump how to adjust the flow?
Variable frequency pump is mainly depending on the frequency converter to adjust the speed of the pump motor, thereby regulating the flow and lift pump, the following Q1/Q2=n1/n2; H1/H2= (n1/n2) -, the frequency range of the frequency converter in 30HZ~50HZ
Q:What is the function of the backflow pipe of the fire pump?
Generally, it is used to test the fire pump. The procedure is to start the fire pump - turn on the return pipe - return the water to the pool. The purpose of the installation is to prevent damage to the pipe caused by the excessive pressure caused by the pump.
Q:Pump power ratio design is small, the problem is big?
Lift and flow to meet the requirements of power, in fact little difference, different manufacturers and brands in the same common effect of different power phenomenon, design principle is on the one hand, the hysteresis loss mechanical loss processing technology is one of the reasons of the differences. Power, after all, does not increase, and does not have a major impact on other lines.
Q:30kW what is the flow rate of the pump?
Estimated traffic: Q = nP/ (9.8H), =70%*30/ (9.8H), =2.14/H (m^3/s)It is estimated that the efficiency of the water pump unit n=70%, power P to kW as a unit, the head H to m as a unit, you go to check the head H is how many meters, into the formula can be considered the flow rate is how many cubic meters per second.
Q:How to install circulating water pump for cooling tower?
Water pump, cold water pump and hot water pump, the specific installation depends on the location of the cooling tower and the location of the heat exchanger, high cooling tower position, the need for hot water pump, heat exchanger position high.The cooling tower, cooling tower (Cooling tower), is using water as coolant, from a system to absorb heat emissions to the atmosphere, heat exchanged to produce steam, steam heat to volatile evaporation dissipation, convection and radiation heat transfer principle to disperse industrial waste heat or refrigeration and air conditioning to reduce evaporation cooling device therefore, in order to ensure the normal operation of the system, device as a barrel. The cooling tower can be divided into natural ventilation cooling tower and mechanical ventilation cooling tower according to its ventilation mode.
Q:When did the pump start?
The promotion of water is very important to human life and production. There are various ancient water appliances, such as Egypt's chain pump (seventeenth Century BC), China shadoof (seventeenth Century BC), Burton (Eleventh Century BC) and water (first Century ad). The famous spiral rods invented by Archimedes in the third Century BC can lift water to a few meters in a steady and continuous way, and the principle is still used by modern screw pumps.In 200 BC, the ancient Greek fire pump craftsmen invented by Kurt Siby Lucius is a kind of piston pump has the most original, the main components of a typical piston pump piston pump, but only after the steam engine was developed rapidly.1840~1850 years, the United States invented Worthington pump cylinder and steam cylinder opposite, the direct impact of the piston pump, marking the formation of modern piston pumps. Nineteenth Century was the climax of the development of piston pumps, which were already used in a variety of machines, such as water presses. However, with the rapid increase in water demand, from 1920s, the piston pumps with low speed and large flow were gradually replaced by high-speed centrifugal pumps and rotary pumps. But in the field of high pressure and small flow, reciprocating pump still occupies the main position, especially diaphragm pump and plunger pump have their own advantages and are used more and more.
Q:Intelligent pump controller, water is full water transfer automatically shows the next pool of water shortage, what is the matter?
The sensor is out of order or the line is out of contact.
Q:25KW what is the lift of the pump?
Give you a formula for estimating the power of a pump:N=Q (L/s), *H (m), /102/ (0.6~0.85), /0.85Explanation is:N, the power unit is kW (kW)Q, flow, in units per liter (L/s)H, the lift is m102 is 1000/g, G, that is gravity acceleration, is a unit conversion0.6~0.85, the efficiency of the pump, the general flow of large values, small flow of small value;0.85, power factorIn addition, there are some general power pump module, since there are: 1.1kW, 2.2kW, 3kW, 4kW, 5.5kW, 7.5kW, 11kW, 15kW, 18.5kW, 22kW, 30kW, 37kW, 45kW, 55kW, 75kW, 90kW, 110kW, 132kW......And generally there is no 25kW pump.
Q:Water pump 50HZ impeller and 60HZ what is different, why not the same?
50HZ motors are usually not damaged if they run on a 60HZ circuit, but the speed will increaseConversely, the 60HZ device runs on the 50HZ circuit, and the speed drops.Because of their different frequency, make them synchronous speed rotating magnetic field winding is different, so the rotor induction (induction motor) speed will be different, the pump will naturally lift Gao Shaoxu, and often will not cause damage to the equipment, because many things are in the 50HZ 60HZ.Second, for synchronous motors, the increase and decrease of speed is much more obvious than that of induction motors, because their rotor and motor are synchronous and keep synchronous speed
Q:How can the pump be stationary?
1, the pump can move under the premise of turning disc. Pump should be empty load start, that is, in the closing of the export valve in the state of start, there will be no rotation of the situation.2, look at the voltage of the circuit is normal, whether the lack of phase.

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