KQW series Horizontal single-stage single-suction centrifugal pump

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Product overview

Fourth generation KQL, KQW series single-stage single-suction centrifugal pump, is my company USES the best hydraulic model, and according to the working condition of all types of users under different conditions of use carefully designed. This series of products, compact structure, reasonable, stable and reliable operation; Configuration of special machine sealing structure, improve the operating environment, extend the service life; High efficiency and energy saving, low operating cost, saving management costs; Cover an area of an area small, save construction investment, favored by the market.

Application field

The central heating system of circulating water; Refrigeration, cooling circulating water of air conditioning system

Water treatment, sanitary water; Indoor living water supply, domestic hot water system

Water supply, water irrigation system; Flushing system with water

Product features

1, the pump and motor directly connected, pump shaft completely concentric, small vibration noise is low; Special structural configuration of bearing, impeller cantilever short, operation is stable and reliable

2, the use of forced circulation should not be restricted to the special structure of configuration of mechanical seal, improve its running environment, prolong service life

3, advanced pump chamber and the impeller design, make the pump has the superiority of hydraulic characteristics, ensure the pump efficiency and energy saving, low running cost, cut down the cost of operation management by 50% to 70%

4, unique installation structure greatly narrowed the pump cover an area of an area small, save construction investment from 40% to 60%

5, stainless steel shaft, never rust, guarantee the mating part tear open outfit is simple, reliable mechanical seal bellows seal, maintenance-free, easy to maintain。

The working conditions

Traffic: 1.8 ~ 2000m3 / h head: 127 m or less

Transfer rate: 2900 r/min, 1480 r/min, 980 r/min

Medium temperature: - 10 ~ 80 ℃ ambient temperature: maximum + 40 ℃

Maximum working pressure (pressure) :

125 diameter (2 extreme speed) and below 125 diameter: 1.6 Mpa

125 diameter (4 pole speed) and 150 ~ 200 diameter: 1.2 Mpa

250 caliber and more than 250 diameter: 1.0 Mpa

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Q:Is the flow meter in front of the pump or after the pump?
Agree upstairs. Pump should be straight before the paragraph, 15 times the nominal length of the caliber.
Q:What are the characteristics of a pipe shield pump?
Two, reverse circulation type of shielding pump, its bearings, lubrication, cooling and motor cooling fluid flow direction and the basic type is the opposite. The main characteristic of reverse circulation pump is that it is not easy to generate cavitation. It is suitable for conveying liquid which is easy to vaporize. Sometimes it is also called "easy to vaporize" type. Three, high temperature medium temperature of up to 450 degrees. The cooling water jacket is usually added outside the shielding motor, and a cooling sleeve is added to the outer circulation pipe to cool the high temperature circulating liquid to reduce the temperature of the motor and the bearing. In the case of less power, some manufacturers do not use cooling liquid, but the outside of the motor is equipped with fins and the special winding to adapt to the working conditions, the use of temperature generally can not exceed 400 degrees.
Q:What is the relationship between the minimum suction vacuum of a pump and the required cavitation?
When the pump is working, the liquid at the inlet of the impeller, due to a certain vacuum pressure will produce steam, the vaporization of the bubble in liquid particles under the impact of movement, the impeller and other metal surface erosion, thereby damaging the impeller and other metal
Q:Why does the centrifugal pump start with a closed valve and the axial pump starts with an opening valve?
Centrifugal pumps require a vacuum to produce negative pressure, which allows atmospheric pressure to lift the water surfaceAxial flow pump impeller is thrust on water
Q:What is the series of pumps? What's the difference between a unipolar and a multistage?
A single-stage pump is a pump with only one impeller. 2, a multistage pump is a pump with two or more impellers. The multistage pump can increase the pressure and lift the head higher. Level 1 means a booster impeller.
Q:How about the depreciation of vacuum pumps?
(three) appliances, tools, furniture and so on related to the production and operation activities, for 5 years;(four) aircraft, trains, ships and other means of transport for 4 years;
Q:If you use an ordinary 15W submersible pump, put it in the tank, if the leakage, the fish will hang it?
If the fish tank is made of metal, the fish tank is grounded or connected to the zero line, and then the fire line is put into the water, then your fish will be electrocuted immediately. Go back to the submersible pump, submersible pump line and the zero line very close, even if the firing line and the zero line at the same time the leakage occurs, fish could not swim between the firing line and the zero line, so the tank submersible pump leakage will cause the following hazards: 1, electric shock. 2, submersible pump short circuit. 3, the submersible pump serious fever, resulting in water temperature tank.
Q:Why does the centrifugal pump close the pressure to start?
The flow is zero (i.e. off dead) minimum, the highest lift power; with the outlet valve opening increases, flow increases, the lift, power and efficiency are increased, the maximum value (usually in the vicinity of the highest rated flow point)
Q:What is pump suction work?
Pump is mainly used to transport liquid, including water, oil, acid and alkali liquid, emulsion, suspension emulsion and liquid metal, etc., also can transport liquid, gas mixture and liquid containing suspended solids.
Q:Because the water pressure of the booster pump is not enough, it can not work automatically. It can only be operated by hand. It is inconvenient to use.
One possibility is the automatic type household booster pump used for a period of time, automatic failure phenomenon, it is 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. But that's not why if your booster pump isn't working properly all the time.

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