KQDL series vertical multi-stage single-suction centrifugal pump

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Product overview

KQD series multistage centrifugal pump is divided into KQDL vertical, KQDW horizontal multi-stage single export-oriented and KQDL vertical centrifugal pump, KQDW horizontal multi-stage export-oriented four more structure. Closer to the pump body of the new return pipe structure design, return pipe is not easy to damage, at the same time enhance the sealing of the pump. Instead of "O" ring rubber bellows mechanical seal is solved easily produce scale, jammed caused by mechanical seal leakage problem, quality is more reliable. Novel structure, superior quality; Running stability, avoid killed; Advanced design, save the investment; Unique parts and reduce the noise.

Application field

KQDL series multistage pump is my company according to the market need and development of series products, this product compared with similar products is small, the head difference between the same specification can be convenient for users to choose. This product is accord with GB/T 5657-5657 < < centrifugal pump technology conditions (Ⅲ) > > standard.

The working conditions

Speed: 1480/2950 r/min

Liquid: clean water or physical and chemical properties similar to water in the liquid.

Liquid temperature: 120 ℃ or less

Flow range: 3.7 ~ 200 m3 / h

Lift range: 12.1 ~ 240 m

The suction pressure of the maximum working pressure: maximum pressure 2.5 Mpa or less + pump

Q:What are the constant pressure pumps?: Chlorine booster pumpThe pressure range of chlorine booster pump is large, and different pump can be used to obtain different pressure area. The input air pressure is adjusted and the output pressure is adjusted accordingly. High pressure can be reached, gas 90Mpa. Wide range of flow, for all types of pumps only 0.1Kg pressure can work smoothly, at this time to obtain the minimum flow, adjust the intake volume can be obtained after a different flow. Easy to control, from simple manual control to fully automatic control, can meet the requirements. Automatic restart, regardless of what causes the pressure drop in the pressure loop, will automatically restart to supplement leakage pressure and maintain constant loop pressure. Safe operation, gas driven, no arc and spark can be used in dangerous situations.

Q:Operating procedures for measuring pumps: Pressurization(1) for the discharge pressure below 2.0MPa, then the pump stroke length should gradually increase, each increase of 20%, to maintain 15 minutes.(2) for the discharge pressure greater than 2.0MPa, you need a special pressure, to ensure that the pump discharge pressure gradually increased, each time for the final row pressure of 20%.(3) when the pressure is not increased, the stroke of the pump is gradually increased by 20% strokes per time.Note (1) when pressure is applied, the pressure gauge should be observed at the side of the loading side (slow motion)(2) check ammeter, forbid overload

Q:The difference between submersible pumps and centrifugal pumpsWhat's the difference between the two? What is applicable and what?: 1. submersible pumpsA very wide range of water treatment tools. Unlike ordinary water pumps, it works underwater, while the pump works mostly on the ground.The working principle of submersible pumpBefore the pump is opened, the suction pipe and pump must be filled with liquid. Open the pump, the impeller rotating speed, which leaves the liquid together with the rotation under the action of centrifugal force, the left outside impeller injection, injection of the liquid in the pump shell gradually slow the spread of indoor speed, the pressure gradually increased, and then from the pump outlet, the outflow discharge tube. At this time, in the leaves at the center of the vacuum area of low pressure liquid was thrown to the surrounding formation there is no air and no liquid, liquid pool at the surface of the liquid under the action of atmospheric pressure, through the suction pipe into the pump, the liquid is continuously pumped up from the liquid pool is also continuously from the outflow discharge tube.Basic parameters of submersible pumpIncluding flow, lift, pump speed, matching power, rated current, efficiency, diameter and so onSubmersible pump main application and scope of applicationIncluding construction, construction, drainage, agricultural irrigation and drainage, industrial water recycling, urban and rural residents cited water supply, and even rescue, disaster relief and so on

Q:What is the main difference between SK water ring vacuum pump and 2BV water ring vacuum pump?: The 2BV vacuum pump belongs to the machine pump coaxial type direct connection design. It saves space and is easy to install;The use of mechanical seals as standard configuration eliminates leakage and easy maintenance;Smooth running, low noise to 62 decibels;

Q:Significance of water pump model ISO50-160: A pump is a machine that transports liquids or pumps liquids. It will be the prime mover of the mechanical energy or other external energy transfer 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. Pump performance parameters include flow, suction, lift, shaft power, water power, efficiency and so on;

Q:How is the pump level of submersible sewage pump determined?: Below the top elevation of the sump, 200 is the warning water levelBut note: 1, the effective volume of the sump meets the requirements. 2, the pump should have enough submerged water level

Q:What is the relationship between the minimum suction vacuum of a pump and the required cavitation?: Suction is allowed to pump the vacuum from the distance from the inlet, which is part of the field installation.The manufacturer of cavitation allowance is closely related to the design and process of pump. Estimation formula: cavitation allowance =10.33 meters - allow suction of -0.5 meters (safety).

Q:What are the causes of pump shock?: 6., water pump relatively serious cavitation, improve the water level of the water tank, reduce water output7., impeller and motor rotor imbalance, overhaul8. pump shaft bending or abrasion overhaul

Q:What is the Rhodes pump?: The ultimate vacuum of roots pump depends on the pump structure and manufacturing accuracy, and also depends on the limit vacuum of the front pump. In order to increase the limit vacuum of the pump, the roots pump can be used in series. The working principle of roots pump is similar to roots blower. As the rotor continues to rotate, the gas is pumped from the intake air to the space between the rotor and the pump housing V0, and then discharged through the exhaust port. Since the V0 space is fully enclosed after inhalation, the gas in the pump cavity does not compress and expand. But when the top of the rotor turns off the edge of the exhaust and the V0 space communicates with the exhaust side, the gas pressure at the exhaust side is higher, and a part of the gas flows back into the space V0, causing a sudden increase in the gas pressure. As the rotor continues to rotate, the gas is expelled from the pump. Roots pump in the pump cavity, there are two "8" shape of the rotor perpendicular to each other on a pair of parallel axis, by a transmission ratio of 1 of a pair of gear belt movements synchronous reverse movement of each other. In the rotor, the rotor and the pump housing between the wall to maintain a certain gap, you can achieve high speed operation.

Q:What are the failures and causes of the replacement of the fuel pump assembly?: Gasoline pump is the gasoline from the gasoline tank suction and the gasoline tank has a certain pressure, thereby, it overcome the resistance of the pipeline, pipeline and fuel filter into the carburetor float chamber or electronically controlled injection engine in the guide frame.

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