Product Description

Company Profile

SHEN LAN  is a foreign trade enterprise in the field of professional and industrial pumps. Established in 2008, our factory has become a famous enterprise in the Chinese market, and our products are exported to Europe, America, Asia and Africa. The high quality of our products has won us high reputation both at home and abroad. The company has core patents, research and development of all kinds of different functions of slurry pump, desulfurization pump, clean water pump, vacuum pump and other products, Our products are applicable in various fields such as labs, chemical, petroleum, papermaking, pharmacy and food industries, and water and electricity factories. According to customers′ different use scenarios to develop technical solutions. Meet any customer needs. The company focuses on product quality, in accordance with the highest standards in the industry to produce, so that customers on quality rest assured, satisfied with the service. As a trustworthy China Supplier, we sincerely hope to cooperate with more friends worldwide.


Product Description

AM series slurry pump are cantilever horizontal centrifugal slurry pump.

They are widely used in industry of mining, electrical power, metallurgy, coal, environmental, etc for transportation of CHINAMFG CHINAMFG slurry.
Mud pump, impurity pump, dredge pump and desilting pump are all belong to category of slurry pump.
Material are vary from corrosion and abrasion degree, high chrome abrosion & corrosion resistance alloy Cr27MoNi, Cr30MoNi are optional.

Rubber Slurry Pump Introduction: 
DeShi rubber slurry pump, the wearing parts are made of anti-abrasive and anti-corrosive natural rubber,
which can be perfectly interchangeable with the metal parts. Clients can choose different material parts
according to the slurry liquid conditions.
Rubber lined slurry pumps are more suitable in delivering high corrosive or CHINAMFG slurries of small
particle size without hard or sharp edges. 
Rubber wet parts can be replaced by the polyurethane parts.
TL(D) and CHINAMFG series desulphurization pumps are designed and manufactured by our company jointly with CHINAMFG domestic experts through technical breakthroughs. Since the hydraulic design of desulfurization pump fully considers the movement of CHINAMFG and liquid flow field, it can maintain good performance during slurry transportation. It is the latest design and development of high efficiency and energy saving products in the 1990s. The product has been tested by the national pump product inspection and testing center, and the performance indicators have met or exceeded the design requirements, and the product has reached the international advanced level after expert appraisal. Its excellent product performance and the ability to adapt to all kinds of bad mining, so that the series of products in power desulfurization, steel desulfurization and other industries are widely used. The company has provided thousands of pumps for dozens of key projects and large and medium-sized enterprises such as HUANENG Company, STATE FRID  Company, power plants owned by large companies, effectively replacing imported products, saving a lot of foreign exchange, and making contributions to the sustainable and healthy development of the national economy.

TYPE capacity head speed
40ZJ-I-A17 9-23 39.3-44.6 2900

AH series

L(R) ,M




AF Series



1.5/1 C-HH

















100 D-L


















10/8 R-M






10/8 E-M



16/14 G-G
























18/16 TU-GH


ZJ series pump is a horizontal, cantilevered heavy duty centrifugal slurry pump.

Product Name Heavy duty slurry pump
Material High chrome alloy Cr28, A05, A07
Standard ISO9001, ASME, ANSI
Flow rate 3.6m3-1620m3/h
Head 6-134m
Voltage 380V,415V,460V or as customer required
Working temperaturer 20ºC to 90ºC
Application Heavy duty mining process. Heavy refuse removal. Cyclone feeds
Coal preparation plant Pulp&paper. Dredging.Mineral processing.
Abrasive slurry.Tailings. High density slurries.Mill grinding.
Ash handling. Slurry feed system. Industrial processing

Slurry pump main factures
*Horizontal, cantilevered centrifugal slurry pump
*Widely used in industries of mining, metallurgy, electric power, coal, chemicals, building,
  transporting CHINAMFG or corrosive slurry etc.
*Interchangeable high wear resistant metal or pressure molded elastomer liner, so as the impeller.
*The discharge branch can be positioned at intervals of 45 degrees by request and oriented to any 8 positions to suit
  installation and application
*Three seal type option:Gland packing seal, Expeller seal,Mechanical seal
*Excellent wear life,easy maintenance.
*Best total operating cost.


Q1. Are you a manufacturer?

Yes, we have been in centrifugal pumps manufacturing and marketing industry over  20 years.
Q2. What markets do your pumps export to?
Europe, North & South America, South-East Asia, Africa, Oceanica, Middle East countries. Our overseas agent in Italy, Russia, America and Africa are gradually improving.
Q3. What information should I let you know if I want to get a quotation?
Please let us know the pump capacity, head, medium, operation situation, quantity, etc. As much as your provide, the precision and accurate model selection.
Q4. Is it available to print our own brand on the pump?
Totally acceptable as international rules.
Q5. How can I get the price of your pump?
You can connect with us through any of the following contact information. Our personalized service person will respond you within 24 hours.




After-sales Service: Timely Communication
Warranty: 1year
Max.Head: 80-110m
Max.Capacity: >400 L/min
Driving Type: Motor
Material: A05 A07 A49 2205 304
US$ 500/Set
1 Set(Min.Order)




vacuum pump

What Is the Impact of Altitude on Vacuum Pump Performance?

The performance of vacuum pumps can be influenced by the altitude at which they are operated. Here's a detailed explanation:

Altitude refers to the elevation or height above sea level. As the altitude increases, the atmospheric pressure decreases. This decrease in atmospheric pressure can have several effects on the performance of vacuum pumps:

1. Reduced Suction Capacity: Vacuum pumps rely on the pressure differential between the suction side and the discharge side to create a vacuum. At higher altitudes, where the atmospheric pressure is lower, the pressure differential available for the pump to work against is reduced. This can result in a decrease in the suction capacity of the vacuum pump, meaning it may not be able to achieve the same level of vacuum as it would at lower altitudes.

2. Lower Ultimate Vacuum Level: The ultimate vacuum level, which represents the lowest pressure that a vacuum pump can achieve, is also affected by altitude. As the atmospheric pressure decreases with increasing altitude, the ultimate vacuum level that can be attained by a vacuum pump is limited. The pump may struggle to reach the same level of vacuum as it would at sea level or lower altitudes.

3. Pumping Speed: Pumping speed is a measure of how quickly a vacuum pump can remove gases from a system. At higher altitudes, the reduced atmospheric pressure can lead to a decrease in pumping speed. This means that the vacuum pump may take longer to evacuate a chamber or system to the desired vacuum level.

4. Increased Power Consumption: To compensate for the decreased pressure differential and achieve the desired vacuum level, a vacuum pump operating at higher altitudes may require higher power consumption. The pump needs to work harder to overcome the lower atmospheric pressure and maintain the necessary suction capacity. This increased power consumption can impact energy efficiency and operating costs.

5. Efficiency and Performance Variations: Different types of vacuum pumps may exhibit varying degrees of sensitivity to altitude. Oil-sealed rotary vane pumps, for example, may experience more significant performance variations compared to dry pumps or other pump technologies. The design and operating principles of the vacuum pump can influence its ability to maintain performance at higher altitudes.

It's important to note that vacuum pump manufacturers typically provide specifications and performance curves for their pumps based on standardized conditions, often at or near sea level. When operating a vacuum pump at higher altitudes, it is advisable to consult the manufacturer's guidelines and consider any altitude-related limitations or adjustments that may be necessary.

In summary, the altitude at which a vacuum pump operates can have an impact on its performance. The reduced atmospheric pressure at higher altitudes can result in decreased suction capacity, lower ultimate vacuum levels, reduced pumping speed, and potentially increased power consumption. Understanding these effects is crucial for selecting and operating vacuum pumps effectively in different altitude environments.

vacuum pump

Can Vacuum Pumps Be Used for Leak Detection?

Yes, vacuum pumps can be used for leak detection purposes. Here's a detailed explanation:

Leak detection is a critical task in various industries, including manufacturing, automotive, aerospace, and HVAC. It involves identifying and locating leaks in a system or component that may result in the loss of fluids, gases, or pressure. Vacuum pumps can play a significant role in leak detection processes by creating a low-pressure environment and facilitating the detection of leaks through various methods.

Here are some ways in which vacuum pumps can be used for leak detection:

1. Vacuum Decay Method: The vacuum decay method is a common technique used for leak detection. It involves creating a vacuum in a sealed system or component using a vacuum pump and monitoring the pressure change over time. If there is a leak present, the pressure will gradually increase due to the ingress of air or gas. By measuring the rate of pressure rise, the location and size of the leak can be estimated. Vacuum pumps are used to evacuate the system and establish the initial vacuum required for the test.

2. Bubble Testing: Bubble testing is a simple and visual method for detecting leaks. In this method, the component or system being tested is pressurized with a gas, and then immersed in a liquid, typically soapy water. If there is a leak, the gas escaping from the component will form bubbles in the liquid, indicating the presence and location of the leak. Vacuum pumps can be used to create a pressure differential that forces gas out of the leak, making it easier to detect the bubbles.

3. Helium Leak Detection: Helium leak detection is a highly sensitive method used to locate extremely small leaks. Helium, being a small atom, can easily penetrate small openings and leaks. In this method, the system or component is pressurized with helium gas, and a vacuum pump is used to evacuate the surrounding area. A helium leak detector is then used to sniff or scan the area for the presence of helium, indicating the location of the leak. Vacuum pumps are essential for creating the low-pressure environment required for this method and ensuring accurate detection.

4. Pressure Change Testing: Vacuum pumps can also be used in pressure change testing for leak detection. This method involves pressurizing a system or component and then isolating it from the pressure source. The pressure is monitored over time, and any significant pressure drop indicates the presence of a leak. Vacuum pumps can be used to evacuate the system after pressurization, returning it to atmospheric pressure for comparison or retesting.

5. Mass Spectrometer Leak Detection: Mass spectrometer leak detection is a highly sensitive and precise method used to identify and quantify leaks. It involves introducing a tracer gas, usually helium, into the system or component being tested. A vacuum pump is used to evacuate the surrounding area, and a mass spectrometer is employed to analyze the gas samples for the presence of the tracer gas. This method allows for accurate detection and quantification of leaks down to very low levels. Vacuum pumps are crucial for creating the necessary vacuum conditions and ensuring reliable results.

In summary, vacuum pumps can be effectively used for leak detection purposes. They facilitate various leak detection methods such as vacuum decay, bubble testing, helium leak detection, pressure change testing, and mass spectrometer leak detection. Vacuum pumps create the required low-pressure environment, assist in evacuating the system or component being tested, and enable accurate and reliable leak detection. The choice of vacuum pump depends on the specific requirements of the leak detection method and the sensitivity needed for the application.

vacuum pump

What Is the Purpose of a Vacuum Pump in an HVAC System?

In an HVAC (Heating, Ventilation, and Air Conditioning) system, a vacuum pump serves a crucial purpose. Here's a detailed explanation:

The purpose of a vacuum pump in an HVAC system is to remove air and moisture from the refrigerant lines and the system itself. HVAC systems, particularly those that rely on refrigeration, operate under specific pressure and temperature conditions to facilitate the transfer of heat. To ensure optimal performance and efficiency, it is essential to evacuate any non-condensable gases, air, and moisture from the system.

Here are the key reasons why a vacuum pump is used in an HVAC system:

1. Removing Moisture: Moisture can be present within an HVAC system due to various factors, such as system installation, leaks, or improper maintenance. When moisture combines with the refrigerant, it can cause issues like ice formation, reduced system efficiency, and potential damage to system components. A vacuum pump helps remove moisture by creating a low-pressure environment, which causes the moisture to boil and turn into vapor, effectively evacuating it from the system.

2. Eliminating Air and Non-Condensable Gases: Air and non-condensable gases, such as nitrogen or oxygen, can enter an HVAC system during installation, repair, or through leaks. These gases can hinder the refrigeration process, affect heat transfer, and decrease system performance. By using a vacuum pump, technicians can evacuate the air and non-condensable gases, ensuring that the system operates with the designed refrigerant and pressure levels.

3. Preparing for Refrigerant Charging: Prior to charging the HVAC system with refrigerant, it is crucial to create a vacuum to remove any contaminants and ensure the system is clean and ready for optimal refrigerant circulation. By evacuating the system with a vacuum pump, technicians ensure that the refrigerant enters a clean and controlled environment, reducing the risk of system malfunctions and improving overall efficiency.

4. Leak Detection: Vacuum pumps are also used in HVAC systems for leak detection purposes. After evacuating the system, technicians can monitor the pressure to check if it holds steady. A significant drop in pressure indicates the presence of leaks, enabling technicians to identify and repair them before charging the system with refrigerant.

In summary, a vacuum pump plays a vital role in an HVAC system by removing moisture, eliminating air and non-condensable gases, preparing the system for refrigerant charging, and aiding in leak detection. These functions help ensure optimal system performance, energy efficiency, and longevity, while also reducing the risk of system malfunctions and damage.

China Good quality Mud Pump Industrial Heavy Duty Slurry Pump Screw Vacuum Pump   vacuum pump oil	China Good quality Mud Pump Industrial Heavy Duty Slurry Pump Screw Vacuum Pump   vacuum pump oil
editor by CX 2023-11-13