Product Description

Product Datails
Vacuum Clear Water Borehole Square Standard Diesel Generator Water Pump

PURITY Product Range


Our Company

    CHINAMFG Co., Ltd. is a specialized manufacturer and supplier of  the high-quality
industrial pumps, exporting to global market in competitive prices. Our main products
are centrifugal pumps, fire pumps, inline pumps and multistage jockey pumps.

    Purity Pump was found in 1998, headquartered in Daxi, HangZhou (ZHangZhoug,  China),
equipped with professional lathe, punching machine, water testing apparatus,  spray-
painting plant, etc. Purity has over 200 employees, around 10% of whom are engaged
in research and development.

    Purity consists of R&D institute, main factory, machinery workshop, rotor workshop
showroom in HangZhou city, and 1 branch in ZheJiang .Our products and service have
been deployed in more than 60 countries. And we supply water pumps for many  large
projects  like National Olympic Stadium. We also supply centrifugal and fire pumps  to
some CHINAMFG pump companies all over the world.
    Aimed to "Life From Purity", with the tenet of  'innovation,  high  quality,  customer
satisfaction", we are striving for the top-ranking brand of industrial pumps.


1. Q: What is your payment terms?
    A: 30%T/T, L/C,West Union, Ali-Pay.etc.
2. Q: What is your MOQ for sample?
    A: 1pc or any of your required quantity, the more quantity you order, the best price you'll get.
3. Q: Are you Trader or Manufacturer?
    A: 100% Manufacturer,welcome to visit our factory and establish business partnership with us.
4. Q: Do u have your own designers and engineers?
    A: Yes, we have.
5. Q: How long is your warranty?
    A: 2 years after purchasing our pump.

Why Choose Us?

1. Exported to more than 60 countries.
2. More than 90% customers make payment before meeting us.
3. Re-order rate up tp 80%
4. Focus on middle~high-end market, we never CHINAMFG market by using inferior material.
5. With professional engineers research.


PURITY Pump Products

Industrial pump Centrifugal Pump Fire pump Fire pump system
Industry pump Centrifugal Pumps fire fighting pumps fire pump set
electric motor pump Centrifugal water pump fire pumps Fire fighting Pump set
horizontal pump Standard Centrifugal Pump fire fighting pump Fire fighting Pump system
bare shaft pump Monoblock Centrifugal Pump fire fighting water pump fire fighting system
close-coupled pump Centrifugal Monoblock Pump fire hydrant pump fire fighting equipment
suction pumps Centrifugal surface pump fire sprinkler pump fire pump and jockey
surface pump horizontal centrifugal pumps fire fighting engine pump fire electric pump
monoblock pump pumps centrifugal diesel engine fire pump jockey and electric pump
end suction pump End suction water pump fire engine water pump fire pump set with electric
SS end suction pump End suction Centrifugal Pump electric fire pump fire pump set fighting
suction water pump close coupled centrifugal pump fire fighting pumps electric Fire fighting Pump group
horizontal inline pump Industrial centrifugal pump fire water pump fire system water pump
vertical inline pump centrifugal horizontal pump centrifugal fire pump fire pump group
inline circulation pump SS centrifugal pump fire pump engine diesel fire fighting pumps
vertical multistage pump stainless centrifugal pump end suction fire pump diesel fire pump set
Split case pump    self-priming centrifugal pump fire fighting electric pump diesel set pump fire
double suction pump horizontal centrifugal pump diesel fire pump jockey fire pump
Split case pump horizontal inline centrifugal pump fire pump diesel fire jockey pump
Sewage pump water centrifugal pump diesel driven fire pump Split case fire pump
sewage water pump Vertical centrifugal pump jockey pump Double Suction fire pump
submersible sewage pump Split case centrifugal pump   multistage jockey pump fire horizontal pump

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Max.Head: >150m
Max.Capacity: >400 L/min
Driving Type: Motor
Structure: Single-stage Pump
Power: Electric
Start Up: Electric Pump


vacuum pump

What Is the Vacuum Level and How Is It Measured in Vacuum Pumps?

The vacuum level refers to the degree of pressure below atmospheric pressure in a vacuum system. It indicates the level of "emptiness" or the absence of gas molecules in the system. Here's a detailed explanation of vacuum level measurement in vacuum pumps:

Vacuum level is typically measured using pressure units that represent the difference between the pressure in the vacuum system and atmospheric pressure. The most common unit of measurement for vacuum level is the Pascal (Pa), which is the SI unit. Other commonly used units include Torr, millibar (mbar), and inches of mercury (inHg).

Vacuum pumps are equipped with pressure sensors or gauges that measure the pressure within the vacuum system. These gauges are specifically designed to measure the low pressures encountered in vacuum applications. There are several types of pressure gauges used for measuring vacuum levels:

1. Pirani Gauge: Pirani gauges operate based on the thermal conductivity of gases. They consist of a heated element exposed to the vacuum environment. As gas molecules collide with the heated element, they transfer heat away, causing a change in temperature. By measuring the change in temperature, the pressure can be inferred, allowing the determination of the vacuum level.

2. Thermocouple Gauge: Thermocouple gauges utilize the thermal conductivity of gases similar to Pirani gauges. They consist of two dissimilar metal wires joined together, forming a thermocouple. As gas molecules collide with the thermocouple, they cause a temperature difference between the wires, generating a voltage. The voltage is proportional to the pressure and can be calibrated to provide a reading of the vacuum level.

3. Capacitance Manometer: Capacitance manometers measure pressure by detecting the change in capacitance between two electrodes caused by the deflection of a flexible diaphragm. As the pressure in the vacuum system changes, the diaphragm moves, altering the capacitance and providing a measurement of the vacuum level.

4. Ionization Gauge: Ionization gauges operate by ionizing gas molecules in the vacuum system and measuring the resulting electrical current. The ion current is proportional to the pressure, allowing the determination of the vacuum level. There are different types of ionization gauges, such as hot cathode, cold cathode, and Bayard-Alpert gauges.

5. Baratron Gauge: Baratron gauges utilize the principle of capacitance manometry but with a different design. They consist of a pressure-sensing diaphragm separated by a small gap from a reference electrode. The pressure difference between the vacuum system and the reference electrode causes the diaphragm to deflect, changing the capacitance and providing a measurement of the vacuum level.

It's important to note that different types of vacuum pumps may have different pressure ranges and may require specific pressure gauges suitable for their operating conditions. Additionally, vacuum pumps are often equipped with multiple gauges to provide information about the pressure at different stages of the pumping process or in different parts of the system.

In summary, vacuum level refers to the pressure below atmospheric pressure in a vacuum system. It is measured using pressure gauges specifically designed for low-pressure environments. Common types of pressure gauges used in vacuum pumps include Pirani gauges, thermocouple gauges, capacitance manometers, ionization gauges, and Baratron gauges.

\vacuum pump

Can Vacuum Pumps Be Used in the Production of Solar Panels?

Yes, vacuum pumps are extensively used in the production of solar panels. Here's a detailed explanation:

Solar panels, also known as photovoltaic (PV) panels, are devices that convert sunlight into electricity. The manufacturing process of solar panels involves several critical steps, many of which require the use of vacuum pumps. Vacuum technology plays a crucial role in ensuring the efficiency, reliability, and quality of solar panel production. Here are some key areas where vacuum pumps are utilized:

1. Silicon Ingot Production: The first step in solar panel manufacturing is the production of silicon ingots. These ingots are cylindrical blocks of pure crystalline silicon that serve as the raw material for solar cells. Vacuum pumps are used in the Czochralski process, which involves melting polycrystalline silicon in a quartz crucible and then slowly pulling a single crystal ingot from the molten silicon. Vacuum pumps create a controlled environment by removing impurities and preventing contamination during the crystal growth process.

2. Wafering: After the silicon ingots are produced, they undergo wafering, where the ingots are sliced into thin wafers. Vacuum pumps are used in wire saws to create a low-pressure environment that helps to cool and lubricate the cutting wire. The vacuum also assists in removing the silicon debris generated during the slicing process, ensuring clean and precise cuts.

3. Solar Cell Production: Vacuum pumps play a significant role in various stages of solar cell production. Solar cells are the individual units within a solar panel that convert sunlight into electricity. Vacuum pumps are used in the following processes:

- Diffusion: In the diffusion process, dopants such as phosphorus or boron are introduced into the silicon wafer to create the desired electrical properties. Vacuum pumps are utilized in the diffusion furnace to create a controlled atmosphere for the diffusion process and remove any impurities or gases that may affect the quality of the solar cell.

- Deposition: Thin films of materials such as anti-reflective coatings, passivation layers, and electrode materials are deposited onto the silicon wafer. Vacuum pumps are used in various deposition techniques like physical vapor deposition (PVD) or chemical vapor deposition (CVD) to create the necessary vacuum conditions for precise and uniform film deposition.

- Etching: Etching processes are employed to create the desired surface textures on the solar cell, which enhance light trapping and improve efficiency. Vacuum pumps are used in plasma etching or wet etching techniques to remove unwanted material or create specific surface structures on the solar cell.

4. Encapsulation: After the solar cells are produced, they are encapsulated to protect them from environmental factors such as moisture and mechanical stress. Vacuum pumps are used in the encapsulation process to create a vacuum environment, ensuring the removal of air and moisture from the encapsulation materials. This helps to achieve proper bonding and prevents the formation of bubbles or voids, which could degrade the performance and longevity of the solar panel.

5. Testing and Quality Control: Vacuum pumps are also utilized in testing and quality control processes during solar panel production. For example, vacuum systems can be used for leak testing to ensure the integrity of the encapsulation and to detect any potential defects or leaks in the panel assembly. Vacuum-based measurement techniques may also be employed for assessing the electrical characteristics and efficiency of the solar cells or panels.

In summary, vacuum pumps are integral to the production of solar panels. They are used in various stages of the manufacturing process, including silicon ingot production, wafering, solar cell production (diffusion, deposition, and etching), encapsulation, and testing. Vacuum technology enables precise control, contamination prevention, and efficient processing, contributing to the production of high-quality and reliable solar panels.vacuum pump

What Industries Commonly Rely on Vacuum Pump Technology?

Vacuum pump technology finds applications in various industries where creating and controlling vacuum or low-pressure environments is crucial. Here's a detailed explanation:

1. Manufacturing and Production: Vacuum pumps are extensively used in manufacturing and production processes across multiple industries. They are employed for tasks such as vacuum molding, vacuum packaging, vacuum degassing, vacuum drying, and vacuum distillation. Industries like automotive, aerospace, electronics, pharmaceuticals, and food processing rely on vacuum pump technology to achieve precise and controlled manufacturing conditions.

2. Chemical and Pharmaceutical: The chemical and pharmaceutical industries heavily rely on vacuum pumps for numerous applications. These include solvent recovery, vacuum filtration, vacuum drying, distillation, crystallization, and evaporation. Vacuum pumps enable these industries to carry out critical processes under reduced pressure, ensuring efficient separation, purification, and synthesis of various chemical compounds and pharmaceutical products.

3. Semiconductor and Electronics: The semiconductor and electronics industries extensively use vacuum pumps for manufacturing microchips, electronic components, and electronic devices. Vacuum pumps are crucial in processes such as physical vapor deposition (PVD), chemical vapor deposition (CVD), etching, ion implantation, and sputtering. These processes require controlled vacuum conditions to ensure precise deposition, surface modification, and contamination-free manufacturing.

4. Research and Development: Vacuum pump technology is integral to research and development activities across scientific disciplines. It supports experiments and investigations in fields such as physics, chemistry, materials science, biology, and environmental science. Vacuum pumps facilitate processes like freeze drying, vacuum distillation, vacuum evaporation, vacuum spectroscopy, and creating controlled atmospheric conditions for studying various phenomena.

5. Food and Beverage: The food and beverage industry relies on vacuum pumps for packaging and preservation purposes. Vacuum sealing is used to extend the shelf life of food products by removing air and creating a vacuum-sealed environment that inhibits spoilage and maintains freshness. Vacuum pumps are also used in processes like freeze drying, vacuum concentration, and vacuum cooling.

6. Oil and Gas: In the oil and gas industry, vacuum pumps play a role in various applications. They are used for crude oil vacuum distillation, vacuum drying, vapor recovery, gas compression, and gas stripping processes. Vacuum pumps help maintain optimal conditions during oil refining, gas processing, and petrochemical manufacturing.

7. Environmental and Waste Management: Vacuum pumps are employed in environmental and waste management applications. They are used for tasks such as soil vapor extraction, groundwater remediation, landfill gas recovery, and wastewater treatment. Vacuum pumps facilitate the removal and containment of gases, vapors, and pollutants, contributing to environmental protection and sustainable waste management.

8. Medical and Healthcare: The medical and healthcare sectors utilize vacuum pumps for various purposes. They are used in medical equipment such as vacuum-assisted wound therapy devices, vacuum-based laboratory analyzers, and vacuum suction systems in hospitals and clinics. Vacuum pumps are also used in medical research, pharmaceutical production, and medical device manufacturing.

9. Power Generation: Vacuum pumps play a role in power generation industries, including nuclear power plants and thermal power plants. They are used for steam condensation, turbine blade cooling, vacuum drying during transformer manufacturing, and vacuum systems for testing and maintenance of power plant equipment.

10. HVAC and Refrigeration: The HVAC (Heating, Ventilation, and Air Conditioning) and refrigeration industries rely on vacuum pumps for system installation, maintenance, and repair. Vacuum pumps are used to evacuate air and moisture from refrigerant lines and HVAC systems, ensuring optimal system performance and efficiency.

These are just a few examples of industries that commonly rely on vacuum pump technology. The versatility and wide-ranging applications of vacuum pumps make them indispensable tools across numerous sectors, enabling precise control over vacuum conditions, efficient manufacturing processes, and scientific investigations.

China Best Sales Vacuum Clear Water Borehole Square Standard Diesel Generator Water Pump   with high quality China Best Sales Vacuum Clear Water Borehole Square Standard Diesel Generator Water Pump   with high quality
editor by CX 2024-02-17