Vertical Multistage Stainless Steel Centrifugal Pumps

Vertical Multistage Stainless Steel Centrifugal Pumps System 1

Vertical Multistage Stainless Steel Centrifugal Pumps

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1 set

Supply Capability:: 4000 set/month

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Vertical Multistage Pump

1.Introduction:

CDL/CDLF high pressure water pump is special in high pressure, made of stainless steel 304 or 316, all parts touch with liquid are of stainless steel. The pump is vertical non-self priming multistage centrifugal pump, which drived by a standard electric motor.The motor output shaft directly connects with the pump shaft through a coupling. The pressure resistant cylingder and flow passagecomponets are fixed between pump head and inlet and outlet section with tie-bar bolts. The inlet and outlet are located at the pump bottom at the same plane. This kind of pump can be equipped with an intelligent protector to effectively prevent it from dry-running, out-of-phase and overload.

2.Applications:

· Urban water supply and pressure boosting

· Industrial circulating system and processing system

· Water supply for boiler, condensing system, high-rise building or fire fighting system.

· Water treatment and RO system

· Cooling water system

3.Electric motor:

· TEFC motor,

· 50HZ or 60HZ 220V or 380V

· Protection class: IP55, Insulation class: F

4. Operation conditions:

Thin, clean, non-flammable and non-explosive liquid containing no solid granules and fibers

medium temperature: -15°c~+120°c

Capacity range: 1~180 m3/h

Head range: 6~305 m

50HZ Pump Performance Scope

Model	CDLF2	CDLF4	CDLF8	CDLF12	CDLF16	CDLF20	CDLF32	CDLF42	CDLF65	CDLF120	CDLF150
Rated flow[m3/h]	2	4	8	12	16	20	32	42	65	120	150
Flow range[m3/h]	1-3.5	1.5-8	5-12	7-16	8-22	10-28	16-40	25-55	30-80	60-150	80-180
Max.Pressure[bar]	23	22	21	22	22	23	26	30	22	16	16
Motor power[Kw]	0.37-3	0.37-4	0.75-7.5	1.5-11	2.2-15	1.1-18.5	1.5-30	3-45	4-45	11-75	11-75
Head range[m]	8-231	6-209	13-201	14-217	16-222	6-234	4-255	11-305	8-215	15-162.5	8.5-157
Temperature range[°C]	-15 -+120
Max.Efficiency[%]	46	59	64	63	66	69	76	78	80	74	73

Q: Piston filling and peristaltic pump filling which precision is high?: First of all, we should know the working principle of each, and analyze the accuracy from the principle, this problem is very important. Piston filling, such as the injection of drugs that we have been ill, the accuracy of the piston pump depends on the accuracy of the motor and the area of the unit cross section

Q: Variable flow pumps are variable pumps: Variable input speed, the pump out of the flow is variable, it can not be said that it is variable pump.In a word。 A variable pump is a variable displacement pump.

Q: There are second cutting, third cutting, why three times?: I used to do this job before. After the impeller is cut, the flow and lift will decrease. Sometimes, the same pump will be cut according to the needs of the impeller, so as to meet the actual needs, at this time, with the power of the motor will also be reduced

Q: Does the reservoir water heater press the booster pump (high marks)?: 60 liters of water storage should be able to drive two bathrooms at the same time bath! Water storage water heater generally does not need booster pump, as long as there is a little pressure, the water heater is filled with water, as long as the tap water can do. You can turn off the hot water valve and see only the amount of water in the cold water. If hot water is much smaller than cold water, it is the reason for the heater. Can you check the water mixer is normal, the one-way valve is installed in reverse.

Q: Water pump does not produce water, what are the reasons?: The reason why centrifugal pump does not produce water:1. pump inlet or sink, water tank water shortage.2. water pump pipe blocked or valve not open.

Q: What is the function of the heating pump system for the water pump design?: As the feed water temperature is higher, in the case of non warm pump start, will make the pump body is subject to greater thermal impact; in addition, the flow components with the pump contact heating fast, not contact with water directly heating slowly. This expansion due to uneven speed, it will inevitably produce thermal stress, deformation of the pump body, sealing surface, the joint surface is lax and leaking phenomenon. Therefore, the warm water pump system is designed for the water pump.

Q: Is the centrifugal pump large or small?: When the liquid is lowered at a certain temperature to the vapor pressure at this temperature, the liquid bubbles. The phenomenon of producing bubbles is called cavitation. When the bubbles are flowing to the high pressure, the volume of the bubbles is reduced so that they are destroyed. This due to the pressure of rising bubbles disappear in the liquid in the phenomenon called cavitation bubble collapse. The local pump is in operation if the over-current part (usually the impeller blade inlet somewhere later) for some reason, the absolute pressure of pumping the liquid was reduced to liquid vapor pressure temperature, liquid vaporization began there, produce a lot of steam bubble formation, when the liquid contains a lot of bubbles by forward high pressure impeller Zone, high pressure liquid around the bubbles in the bubble decreases drastically and rupture. Condensation in the bubble burst and the liquid particle at high speed to fill a hole in this moment has a very strong effect of water hammer and the impact of high frequency against the metal surface, the impact stress of hundreds to thousands of atmospheric pressure, impact frequency can be up to tens of thousands of times per second, serious breakdown when the wall thickness will be. The process of cavitation in a pump is caused by the bursting of bubbles and bubbles in the water pump and the destruction of the over-current components. Water pump cavitation, in addition to the over-current components will have a destructive effect, but also produce noise and vibration, and lead to the performance of the pump down, seriously when the pump will be interrupted liquid, can not work properly.

Q: How can I buy a pump?: 3 、 mechanical requirements of high reliability, low noise, vibration.4, the correct calculation of pump procurement costs, the pump manufacturer to inspect, requiring good quality equipment, good after-sales service, spare parts can be timely supply.The micro pump and the motive of the mechanical energy or other external energy transmitted to the liquid, the liquid energy increase, mainly used to transport liquids including water, oil, alkali liquid, emulsion, suspension emulsion and liquid metal, but also transport liquid, gas mixtures and liquids containing suspended solids.The technical parameters of pump performance include flow, suction, lift, shaft power, water power, efficiency and so on.

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 differences between the sewage pump and the clean water pump?: The main difference between the sewage pump and the clean water pump is that:Impeller and runner design, as well as other parts of the configuration are very different.1., in order to prevent clogging of sewage pump, the main design of large flow channel, so naturally lead to relatively low efficiency, so the head is generally not high. Clear water pump flow smaller, smaller clearance, the head is relatively high.

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