Product Description

Multistage mine pump
 
 

MD Multistage mine pump
Model MD
DN(flange) 80~800mm
Capacity 2~590m³/h, with 2950RPM, 1450RPM, 980RPM, 740RPM, 
585RPM, 490RPM, 372RPM, 298RPM
Head 49~680m
Permitting working pressure 2.5Mpa
Medium Temperature Normal<=80°C, cooling structure<105°C, equal to or higher 
than 105°C take special orders
Material Cast iron-HT200, HT250; SS304, SS316, SS316L, Duplex SS
Partical  80mg/l
Motor 380V, 415V, 660V; IP54, IP55; 50Hz, 60Hz
Shaft Cast steel, 2Cr13
Casing and cover Cast iron, Nudular cast iron, Cast steel
Impeller Cast iron, Bronze, stainless steel
Mouth seal Cast iron, nudular cast iron, bronze, stianless steel.
Shaft seal Mechanical seal or packing seal
Bearing Closed grease lubricated roller bearing(SKF, NTN) NSK thrust 
and roll bearing
Flange standard ASME, DIN, GB
Seal by Burgmann mechanical seal or gland packing
Quality control system ISO9001:2000, ISO14001, OHSAS18001, ISO2548, GB/T3216, 
GB/T5657, GB19762-2005
Main Application Power plants, water supply, municipal, construction, fire fighting, 
industrial and mining enterprises and other industries for the 
transportation of water, of similar physical and chemical properties 
of water and other media

 

Export experience:
Over 20 years’ export experience.
 
Company Information
ZheJiang  East Pump (Group) Co., Ltd is a well-known pump manufacture in China, including scientific
research, manufacture, marketing and service.It owns 16 sub-companies, 8 large manufacturing bases all over china.The sales revenue in 2014 reaches 400 Million dollars.Our products range 
covers Centrifugal Pump,Stainless steel Multi-stage Pump, Submersible Pump,
Fire-fighting pump,Magnetic Pump,Diaphragm Pump,Slurry Pump,etc.

BROTHER digit-control machine tools, borer, broacher, vertical lathe and large special test center run through the production flow line. Without excellent production equipment, there would not be excellent products.
The spirit of hard work is particularly presented in the production process here in Eastpump, even if a small screw, everything and every detail is made meticulously and shows the professional quality.
Eastpump strictly follows ISO 9001 quality control system, ISO 4001, OHSAS 18000etc. management systems and the scientific and reasonable flow of operation, making sure of a high effective high quality production process.
 
PRODUCT TESTING

The group company now holds a large pump test center, a three-coordinate measurer, a dynamic-static measurer, a quick laser shaping instrument, a multi-functional shot-blasting machine, an automatic argon-arc welder, a large lathe, a large mill, numeral control machine tools etc. more than 2000 sets of various nationwide and worldwide advanced production and detection facilities and over 4500 staff members, of which 72.6% are graduated from colleges and technical schools, 375 hold a junior title, 28 senior, 2 national experts and 5 professors. Every year this group puts a number of capital for technical innovation, product development and equipment import and, up till now, holds up to 600 national patent technologies and takes part in the draft-out and edition of both national and industrial standards, in total of tens of the product and technical standards covering water conservancy, chemical industry, fire-fighting, city water supply etc. Fields.
 
Ordering instructions
Must provide order information:

The required pump model or user operating point flow, head, NPSH, the nature of the medium and temperature parameters and special parameters of the basic requirement;
The pump main parts material (not to specify the configuration according to the sample delivery);
Inlet pressure (if inlet pressure >=0.6MPa, pump casing should equip with high strength material);
The shaft seal type (three are mechanical seal, injectable soft-fillings seal, special seal part, packing seal and so on, it will delivery packing seal if it does not indicate);
The bearing structure type (select according to medium temperature and so on, it will deliver standard fitting if it does not indicate);
Revolving direction of pump (view from the end of transmission, the revolving direction of pump is anticlockwise. It will deliver standard fitting if it does not indicate);
Motor rotational speed, power, voltage, protection rank, insulation grade, cooling method, whether to guard against explosions and so on;
Base: the sample 315 with the following common base frame sizes, frame sizes above 315 with a split base or no base, please specify when ordering;
For spare parts, please indicate the name and quantity of spare parts required;
Ordering, no special requirements to flanges book list data delivery, if any special requests when ordering;
State seal flushing method: wash the external and external washing. Add the rinse water temperature is suitable for =80°C or media containing sand and other particles of the occasion;
Flat flange of the pump, with the sealing surface for sealing wire required the contract specified.
 
Selecting description:

The order of user isn’t limited by the data which listed in the sample performance curve and performance parameter chart, this company may design and provide the products specially according to user’s actual requirement flow and head;
If it is close to the listed performance parameter, it will prefer to select the standard impeller pump and the high speed pump generally (the premise is that satisfies the requirement of cavitation performance);
If user’s required flow and head parameter aren’t in the scope of product’s large flow and low head operating condition, the matched motor power may confirm and reduce properly according to the actual operating condition point.
if you have special selecting or have the unclear place to the sample, please inquire the technical support department of ZheJiang  East Pump (Group) Co., Ltd directly.
Recommended spare parts: shaft, mechanical seal, seal ring, packing, bearings, impeller.
After service
East Pump persist in “consumers’ satisfaction” as our objective. “To offer consumers with high-class services” as our promises. They are embodied in our all processes of sales.
Before-sales service: Our engineers offer consumers design and consultation services. They will commend the optimum products, therefore, losses because of unsuitable select of pump can be averted.
Sales service: We follow the products sold on our own initiative. Consumers can receive our professional training free to ensure our products can operate with high efficiency to avoid equipment hitch owing to consumers’ incorrect use.
After-sales service: Our service people will forwardly make selective-check for product sold termly. Furthermore, they will supervise consumers maintaining the equipment in time. Once our products work wrong, we will obviate the trouble as soon as possible, to make equipment operate normally.

Item of service
Technical training          Equipment evaluation
Installation and debugging   Troubleshoot
Maintenance              Update and improvement
Commitment to the service
1.      After signing the contract , send engineer for assisting installation and debugging.
2.      One-year warranty. Provide technical support free all-life of the products.
3.      Keep all-life contacting with clients, get feedback on use of the equipment and make the products quality continually perfected.
4.      Hot-line of service is available in 24h, responded in 8h. 400 1666 099

 

Impeller Number: Single-Stage Pump
Working Pressure: High Pressure Pump
Influent Type of Impeller: Single Suction Pump
Position of Pump Shaft: Horizontal Pump
Pump Casing Combined: Horizontal Split Pumps
Mounting Height: Since Irrigation Centrifugal Pumps
Customization:
Available

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Vacuum Pump

What Are Vacuum Pumps?

Vacuum pumps use air flow as the source of energy. The system is ideal for dewatering wet media, creating filter cakes, and pneumatically moving materials through a pipe. A vacuum pump works through air flow that is moved by differential pressure. The pump’s air flow develops a vacuum in a chamber that is called the vacuum box. As the air flow collects gas at a faster rate than atmospheric pressure, it is considered the “heart” of a vacuum system.

Principles of operation

Vacuum pumps work by reducing the volume of air that moves through them. Depending on the design, there are several different types of vacuum pumps. All of these types operate under the same principles, but have their own special features. Here are some of their most important characteristics. In addition to their capacity, the main differences between these pumps are their manufacturing tolerances, materials of construction, and level of tolerance for chemicals, oil vapor, and vibration.
Vacuum pumps create a partial or low-pressure vacuum by forcing gas molecules from their high-pressure states to their low-pressure states. However, these pumps can only achieve a partial vacuum, and other methods are necessary to reach a higher level of vacuum. As with all pumps, there are several ways to increase the level of a vacuum.
First, consider the type of vacuum you want. This is the most important factor when choosing a vacuum pump. If you need a high level of vacuum, you’ll need a high-quality vacuum pump. High-quality vacuum pumps have a high pressure limit, while ultrahigh-quality pumps are capable of achieving a very low vacuum. As the pressure decreases, the amount of molecules per cubic centimeter decreases and the quality of the vacuum increases.
Positive displacement pumps are best suited for low and medium-pressure systems. But they can’t reach high vacuum, which is why most high-pressure systems use two pumps in tandem. In this case, the positive displacement pump would stall and the other one would be used instead. Similarly, entrapment pumps have higher-pressure limits, so they must be refreshed frequently or exhaust frequently when there is too much gas to capture.
Another important aspect of vacuum pump operation is its speed. The speed of pumping is proportional to the differential pressure across the system. Therefore, the faster the pumping speed, the lower the draining time.

Design

A vacuum pump is a mechanical device used to generate a vacuum. It can create a low or high vacuum. These pumps are used in the process of oil regeneration and re-refining. The design of a vacuum pump must be compatible with the vacuum. The pump’s mass and speed should be matched.
The design of a vacuum pump is important for many reasons. It should be easy to use and maintain. Vacuum pumps need to be protected from external contamination. For this reason, the oil must be kept clean at all times. Contamination may damage the oil, resulting in pump failure. The pump’s design should include features that will prevent this from happening.
The main objective of a vacuum pump is to remove air and other gases from a chamber. As the pressure of the chamber drops, the amount of molecules that can be removed becomes more difficult. Because of this, industrial and research vacuum systems typically require pumps to operate over a large pressure range. The range is generally between one and 10-6 Torr. A standard vacuum system uses multiple pumps, each covering a portion of the pressure range. These pumps can also be operated in a series to achieve optimal performance.
The design of a vacuum pump can vary depending on the application and the pressure requirement. It should be sized appropriately to ensure that it works properly. There are several different types of pumps, so selecting the right pump is essential to maximizing its efficiency. For example, a slow running vee belt drive rotary vane vacuum pump will have a lower running temperature than a fast-running direct-drive pump.
Vacuum Pump

Performance

The performance of a vacuum pump is an important indicator of its overall condition. It helps determine whether the system is performing optimally and how high the ultimate vacuum level can be achieved. A performance log should be maintained to document variations in pump operating hours and voltage as well as the temperature of the pump’s cooling water and oil. The log should also record any problems with the pump.
There are several ways to increase the performance of a vacuum pump. For example, one way is to decrease the temperature of the working fluid. If the temperature of the fluid is too high, it will lead to a low vacuum. A high temperature will make the vacuum degree of the pump even lower, so heat transfer is an important part of the process.
Nozzles are another major component that impacts the performance of a vacuum pump. Damage or clogging can result in a compromised pumping capacity. These problems can occur due to a number of causes, including excessive noise, leakage, and misassembled parts. Nozzles can also become clogged due to rusting, corrosion, or excess water.
Performance of vacuum pump technology is vital for many industries. It is an integral part of many central production processes. However, it comes with certain expenses, including machines, installations, energy, and maintenance. This makes it essential to understand what to look for when purchasing a vacuum pump. It is important to understand the factors that can influence these factors, as they affect the efficiency of a vacuum pump.
Another important factor in determining the performance of a vacuum pump is throughput. Throughput is a measurement of how many molecules can be pumped per unit of time at a constant temperature. Moreover, throughput can also be used to evaluate volume leak rates and pressure at the vacuum side. In this way, the efficiency of a vacuum pump can be judged by the speed and throughput of its leaks.

Atmospheric pressure

Vacuum pumps work by sucking liquids or air into a container. The amount of vacuum a pump can create is measured in pressure units called atms (atmospheric pressure). The pressure of a vacuum pump is equal to the difference between atmospheric pressure and the pressure in the system.
The amount of force produced by air molecules on each other is proportional to the number of impacts. Therefore, the greater the impact, the higher the pressure. In addition, all molecules have the same amount of energy at any temperature. This holds true for both pure and mixture gases. However, lighter molecules will move faster than heavier ones. Nevertheless, the transfer of energy is the same for both.
The difference between atmospheric and gauge pressure is not always straightforward. Some applications use one term to describe the other. While the two concepts are closely related, there are key differences. In most cases, atmospheric pressure is a higher number than gauge pressure. As a result, it can be confusing when choosing a vacuum pump.
One method is to use a U-tube manometer, a compact device that measures the difference between atmospheric pressure and vacuum. This device is commonly used for monitoring vacuum systems. It can measure both negative and positive pressure. In addition, it uses an electronic version of a gauge.
The atmospheric pressure affects the performance of a vacuum pump. When working with porous materials, the pump must overcome leakage. As a result, it must be equipped with enough capacity to compensate for variations in the porosity of the work piece. This is why it is critical to buy a vacuum pump that has a large enough capacity to handle the variation.
Vacuum Pump

Typical application

Vacuum pumps are used in a variety of applications. They generate low and high pressures and are used to evaporate water or gases from various materials. They are also used in petroleum regeneration and re-refining processes. Typical applications of vacuum pumps include: a.
b. Rotary vane pumps are used in a variety of vacuum applications. They are suitable for industrial applications, freeze drying and cabinet making. They use oil as a sealant and coolant, allowing them to perform well in a variety of applications. This makes them ideal for use in a variety of industries.
The pumping rate of the vacuum pump is important. This refers to the volume pumped from a given point at a given rate. The higher the speed, the faster the pump will expel the air. Depending on the gas composition, this number will vary. When choosing a vacuum pump, gas composition and process requirements should be considered.
Vacuum pumps are used in a variety of industries from laboratories to medical facilities. In medical applications, they are used in radiation therapy and radiopharmaceuticals. They are also used in mass spectrometers, which are instruments used to analyze solid, liquid, or surface materials. Vacuum pumps are also used in decorative vacuum coatings and Formula 1 engine components. A trash compactor is another example of using a vacuum pump.
Vacuum pumps are used in a variety of applications including water purification and aeration. Vacuum pumps are also used in portable dental equipment and compressors in the dental industry. Vacuum pumps are also used in molds for dental implants. Other common applications for vacuum pumps include soil aeration and air sampling.

China Good quality Multistage Mine Centrifugal Pump 2021   with Best Sales China Good quality Multistage Mine Centrifugal Pump 2021   with Best Sales
editor by CX 2023-11-13