China Custom Water Ring Vacuum Pump Air Rotary Oil Water Piston Dry Portable Mini Scroll Reciprocating Diaphragm Centrifugal Positive Displacement DC AC Vacuum Pumps vacuum pump oil

Product Description

Water Ring Vacuum Pump Air Rotary Oil Water Piston Dry Portable Mini Scroll Reciprocating Diaphragm Centrifugal Positive Displacement DC AC Vacuum Pumps

water vacuum pump

Liquid Ring Vacuum Pump Working Principle. The vacuum pump consisting an impeller which is located eccentric to the cylinder body(Vacuum pump housing). Vacuum is created in the vacuum pump by using a liquid seal. … When the impeller starts to rotate, the liquid is starts move outward by centrifugal force.

Water ring vacuum pump is a common type of liquid ring vacuum pump. Water ring is a rotor with multi-blades eccentrically installed in the pump shell. When it rotates, it throws liquid into the pump and forms a liquid ring concentric with the pump shell. The liquid ring and the rotor blade form a rotating variable capacity vacuum pump with periodic volume change. When the working liquid is water, it is called water Ring vacuum pump. There are many kinds of water ring vacuum pumps with different prices. .Among them, 2BV is more cost-effective. The type selection of water ring vacuum pump should be based on your on-site process, the required vacuum degree and the amount of air pumping required.



company information


After-sales Service: Installation Guide 1-Year Warranty
Warranty: Installation Guide 1-Year Warranty
Oil or Not: Optional
Exhauster Method:
Vacuum Degree:
US$ 999/Piece
1 Piece(Min.Order)


portable vane pump

What is the typical weight and size of portable vacuum pumps?

The weight and size of portable vacuum pumps can vary depending on the specific model, manufacturer, and intended application. However, portable vacuum pumps are generally designed to be compact and lightweight for ease of transport and maneuverability. Here is an overview of the typical weight and size characteristics of portable vacuum pumps:


The weight of portable vacuum pumps can range from a few pounds to around 30 pounds (1 kg to 14 kg) or more, depending on the capacity, construction, and features of the pump. Smaller, handheld vacuum pumps used for lighter-duty applications such as brake bleeding or small-scale fluid transfer may weigh less than 5 pounds (2 kg). On the other hand, larger portable vacuum pumps with higher capacity and robust construction, suitable for industrial or heavy-duty applications, may weigh 20 pounds (9 kg) or more.


Portable vacuum pumps are designed to have a compact footprint, allowing for easy transportation and storage. The size of a portable vacuum pump can vary depending on its capacity, design, and functionality. In general, portable vacuum pumps can range from small handheld devices to larger units that are approximately the size of a small toolbox. The dimensions can vary, but as a rough estimate, a typical portable vacuum pump may have dimensions of around 10 to 20 inches (25 to 50 cm) in length, 6 to 12 inches (15 to 30 cm) in width, and 8 to 16 inches (20 to 40 cm) in height.

It’s important to note that these size and weight estimates are approximate and can vary significantly depending on the specific model and manufacturer. When selecting a portable vacuum pump, it is advisable to refer to the manufacturer’s specifications and dimensions to get accurate information about the weight and size of a particular model.

Additionally, it’s worth considering that the weight and size of a portable vacuum pump may also depend on the features and accessories it includes. Some models may come with built-in storage compartments for accessories, carrying handles, or additional features that can affect the overall dimensions and weight.

Overall, portable vacuum pumps are designed to be lightweight and compact, allowing for easy portability and maneuverability in various applications, including automotive, HVAC, and industrial tasks.

portable vane pump

What safety features should you look for in a portable vacuum pump?

When selecting a portable vacuum pump, it is important to consider the safety features it offers. Safety features are designed to protect users, equipment, and the surrounding environment from potential hazards associated with vacuum pump operation. Here are some key safety features to look for in a portable vacuum pump:

  • Overload Protection: Overload protection is a crucial safety feature that prevents the pump from overheating or sustaining damage due to excessive load or prolonged operation. It typically involves an automatic shut-off mechanism or a thermal protection system that activates when the pump reaches a certain temperature or operating limit.
  • Anti-Suckback Valve: An anti-suckback valve is designed to prevent backflow of fluids or contaminants into the vacuum pump. It helps protect the pump and the connected system from potential damage caused by reverse flow or contamination during power loss or sudden pressure changes.
  • Pressure Relief Valve: A pressure relief valve serves as a safety mechanism to prevent over-pressurization of the pump or the system being evacuated. It opens at a pre-set pressure threshold, releasing excess pressure and preventing potential damage or rupture of components.
  • Emergency Stop Button: An emergency stop button or switch provides a quick and easily accessible means of shutting down the vacuum pump in case of an emergency or when immediate cessation of operation is necessary. It allows users to stop the pump’s operation rapidly to mitigate potential hazards or risks.
  • Motor Protection: Motor protection features safeguard the pump’s motor from damage due to voltage fluctuations, power surges, or electrical faults. These features may include built-in circuit breakers, fuses, or surge protectors to prevent electrical damage and ensure safe operation.
  • Leak Detection: Some advanced portable vacuum pumps may incorporate leak detection mechanisms or sensors to monitor and detect any leaks in the system. These features can provide an early warning of potential leaks, allowing users to take corrective action promptly and prevent hazardous situations.
  • Noise Reduction: While not directly related to safety, noise reduction features can contribute to a safer working environment by reducing noise-induced stress, fatigue, and potential hearing damage. Look for vacuum pumps designed with noise-dampening materials, vibration isolation, or soundproof enclosures to minimize noise levels during operation.
  • Certifications and Compliance: Ensure that the portable vacuum pump meets relevant safety standards and certifications. Look for certifications such as CE (Conformité Européene), UL (Underwriters Laboratories), or other recognized safety marks that indicate compliance with industry safety requirements and regulations.

It is important to note that the specific safety features may vary depending on the model and manufacturer of the portable vacuum pump. When evaluating safety features, consider the specific requirements of your application, industry regulations, and any additional safety measures recommended by the manufacturer.

Prioritizing safety features in a portable vacuum pump helps protect users, equipment, and the surrounding environment, reducing the risk of accidents, damage, or injuries associated with vacuum pump operation.

portable vane pump

How do you choose the right portable vacuum pump for your needs?

Choosing the right portable vacuum pump requires careful consideration of several factors to ensure it meets your specific needs and requirements. Here are some key steps to guide you in the selection process:

  1. Identify Your Application: Start by clearly defining the application for which you need a portable vacuum pump. Determine the specific tasks or processes it will be used for, such as HVAC maintenance, laboratory experiments, automotive applications, or industrial processes. Understanding your application will help narrow down the options.
  2. Consider Vacuum Level and Flow Rate: Evaluate the required vacuum level and flow rate for your application. Different applications have varying vacuum level and flow rate requirements. Ensure that the portable vacuum pump you choose can achieve the desired vacuum level and provide sufficient flow rate to handle the desired tasks effectively.
  3. Check Capacity and Performance: Assess the capacity and performance specifications of portable vacuum pumps. Consider factors such as pumping speed, ultimate vacuum level, power rating, and duty cycle. These specifications determine the pump’s efficiency, reliability, and suitability for your application.
  4. Assess Portability and Size: As you are specifically looking for a portable vacuum pump, consider its size and portability features. Evaluate the weight, dimensions, and any additional features that facilitate easy transport and maneuverability. Ensure that the pump’s size and weight are suitable for your intended use and the environments where it will be deployed.
  5. Review Maintenance and Durability: Look for portable vacuum pumps that are designed for easy maintenance and have a reputation for durability. Check if the pump requires regular oil changes or if it is an oil-free design. Consider the availability of replacement parts and the manufacturer’s support for maintenance and repairs.
  6. Consider Noise and Vibration Levels: Evaluate the noise and vibration levels of the portable vacuum pump, especially if it will be used in environments where noise or vibration may be a concern. Look for pumps that have noise-reducing features and are designed to minimize vibrations for quieter operation.
  7. Review Safety Features: Ensure that the portable vacuum pump has appropriate safety features for your application. This could include features like thermal protection, overpressure protection, or built-in safety mechanisms to prevent oil or chemical leaks. Safety should be a priority when selecting a pump.
  8. Consider Budget and Cost: Determine your budget for the portable vacuum pump and consider the overall cost of ownership. Take into account the initial purchase price, ongoing maintenance costs, and energy consumption. Balancing performance, quality, and cost-effectiveness is crucial in making the right choice.
  9. Read Reviews and Seek Expert Advice: Read reviews and seek recommendations from experts or professionals in your specific industry or application. Their insights and experiences can provide valuable guidance in selecting a reliable and suitable portable vacuum pump.

By following these steps and considering the factors mentioned, you can make an informed decision and choose the right portable vacuum pump that best matches your needs, ensuring efficient and reliable vacuum or pressure generation for your specific application.

China Custom Water Ring Vacuum Pump Air Rotary Oil Water Piston Dry Portable Mini Scroll Reciprocating Diaphragm Centrifugal Positive Displacement DC AC Vacuum Pumps   vacuum pump oil	China Custom Water Ring Vacuum Pump Air Rotary Oil Water Piston Dry Portable Mini Scroll Reciprocating Diaphragm Centrifugal Positive Displacement DC AC Vacuum Pumps   vacuum pump oil
editor by CX 2023-11-20