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Top Rated 8 Best Diaphragm Vacuum Pumps In The USA (Review & Buying Guide) June 2022

Updated: November 26, 2021
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Diaphragm pumps are very common in industries. They are more popular than other types of pumps. The reason is that they are very durable and powerful. Besides, they are easy to install, so you do not have to call an expert. 

Additionally Find: Best Dial Bore Gauge

However, it is important to buy the best diaphragm pump for your application. If you are looking for the best diaphragm pump, here are the top ten products that you should consider with a buying guide.

Here’s The List of The Best Diaphragm Vacuum Pumps In The USA

Graco 1050A (# 647016) 1" Diaphragm Pump
Huanyu Oilless Diaphragm Vacuum Pump
Happybuy Air-Operated Double Diaphragm Pump
Lab Portable Oilless Diaphragm Vacuum Pump
Happybuy Air-Operated QBK-15-1 Double Diaphragm Pump
JOANLAB Oilless Diaphragm Vacuum Pump
stonylab Diaphragm Vacuum Pump
Happybuy Air-Operated 13 GPM Double Diaphragm Pump

Graco 1050A (# 647016) 1" Diaphragm Pump

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Graco 1050A (# 647016) 1" Diaphragm Pump

This Graco 1050A (# 647016) 1" Diaphragm Pump is the pump that is specially designed to be used for pumping chemicals, water, air and other liquids. 

This diaphragm pump has durable construction, smooth running and is easy to use. These pumps also have a very good quality and it is the best choice for you.

Features:

  • It is easy to use.
  • It has a long lasting performance.
  • This pump is very quiet.
  • The Pumps are fairly light.
  • Easy installation.
  • Flee Flow: 50 GPM
  • Max Air SCFM at 100 PSI: 64
  • Air Inlet: 1/2"
  • Fluid Inlet/Outlet: 1"

Huanyu Oilless Diaphragm Vacuum Pump

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Huanyu Oilless Diaphragm Vacuum Pump

Huanyu Oilless Diaphragm Vacuum Pump(HYD-V20) is a kind of dry vacuum pump, which is widely used in the area of the biological laboratory, metallurgy, light industry, food, and other industries. The dry pump is a high-vacuum pump that uses no oil or grease lubrication. It can be used for the vacuum of about 1.3×10−5 Pa to 10−1 Pa.

In the process of operation of this machine, the relative movement between the diaphragm and plate will cause the volume of the cavity to change. Inside the cavity, there is a flexible diaphragm with a certain tension. When the volume of the cavity decreases, the diaphragm will be stretched and thus increase its internal pressure. When the volume of the cavity increases, it will be compressed and reduce its internal pressure.

Features:

  • High vacuum, high efficiency, low noise. 
  • Easy to maintain, no need for lubrication. 
  • The vacuum pump can be used in a variety of harsh environments, such as acid and alkali liquid, the liquid with high viscosity and high-temperature liquid.

Happybuy Air-Operated Double Diaphragm Pump

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Happybuy Air-Operated Double Diaphragm Pump

Happybuy Air-Operated Double Diaphragm Pump is a compact, low-cost, high-performance pump, which is made of TOP quality polypropylene. A Double-acting seal gives it longer life and better performance.

It is a double diaphragm pump that uses air as the power source and it is also called an air diaphragm pump or a pneumatic diaphragm pump. 

It applies to a wide range of liquid transfers such as chemical liquid, water, sewage water, and so on. This kind of pump can be used to transfer the liquid with solid particles.

Features:

  • Material:Polypropylene ; Type: Double diaphragm ; Operation Type: Air-operated ; Inlet/Outlet Port Size/Standard:1/2 inch (12.7 mm) ; Air Inlet Size: 1/4 inch(6.35 mm) ; Max Flow Rate: 13 GPM
  • Maximum Head: 226FT/69M, Max Pressure: 100 PSI. Max Temp: 150 °F. Top-quality glyd ring, a double-acting seal that delivers better performance. 1/4 inch air inlet with FNPT fitting uses standard shop air for easy operation.

Lab Portable Oilless Diaphragm Vacuum Pump

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Lab Portable Oilless Diaphragm Vacuum Pump

Lab Portable Oilless Diaphragm Vacuum Pump is a small diaphragm vacuum pump used to generate a negative pressure, so it can be used for filtering. It's widely used in the chemical industry, research institutes, hospitals, schools, factories, and other industries. In addition, it can also be used for biological experimental research.

In the process of research work, the use of an oilless vacuum pump is increasingly being recognized. Its use is simple and convenient, and the effect is reliable and durable. It has a wide range of application fields. It is suitable for the needs of medical treatment, biological experiments and other fields.

Though an oilless vacuum pump has no oil in the engine, the air compressor cylinder is made of aluminum alloy material with excellent heat dissipation performance. Therefore, when working, it can avoid high temperatures due to high pressure and prolong its service life. In addition, it also has advantages such as being lightweight and being easy to operate.

In addition to low noise, low power consumption, and energy-saving, the oilless vacuum pump has other advantages such as easy installation and good sealing performance, and so on. Based on the characteristics of this vacuum pump, it is mainly used in various fields such as scientific research experiments, medical treatment, and so on. 

The product uses an oil-free diaphragm pump with excellent vacuum characteristics for negative pressure generation. The use of imported special rubber eliminates the need to add lubricating oil. It does not require regular maintenance and can be operated continuously for 24 hours without stopping operation.

Features:

  • Works at 10L/15L/min
  • 0.075Mpa oilless small diaphragm pump
  • Lab vacuum filtration pump runs at only 40 decibels

Happybuy Air-Operated QBK-15-1 Double Diaphragm Pump

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Happybuy Air-Operated QBK-15-1 Double Diaphragm Pump

Happybuy Air-Operated Double Diaphragm Pump is a double-action pump with a single cylinder and a double-acting piston. 

Double-acting piston pumps are a type of positive displacement pump in which the piston can perform work in both directions. Double-acting piston pumps have two pistons, one on either side of a common cylinder, and two inlet and two outlet valves. 

Double-acting piston pumps provide a large amount of suction lift and can deliver fluids to great heights (up to 200m vertical head).

Features:

  • Material: Cast Iron 
  • Type: Double diaphragm
  • Operation Type : Air-operated
  • Inlet/Outlet Port Size/Standard:1/2"
  • Air Inlet Size [in]:1/4"

JOANLAB Oilless Diaphragm Vacuum Pump

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JOANLAB Oilless Diaphragm Vacuum Pump

JOANLAB Oilless Diaphragm Vacuum Pump is widely used in laboratories, including food, drug, beverage, and drinking water industry tests, suspended solids determination, and microanalysis of sample pretreatment, or solvent passivation; Compared with gravity flow, vacuum filtration can greatly reduce processing time and improve efficiency.

Vacuum gauge-Simple operation, stable performance, high accuracy of measurement, and quick response. Overload protection, over-temperature protection, short circuit protection, using more safety.

Oilless vacuum gauge exhaust port. Unique leather film design reduces wear and increases working life. It provides a clean vacuum environment and doesn't produce pollution to the system.

The high-quality non-slip suction cup makes the vacuum pump anti-slip and anti-shock in the process of use, improving work efficiency.

Features:

  • Fast and easy to use with quick, quiet, and precise results.
  • Sampling can be performed without changing sampling location or adding reagents.
  • Reduces the time spent on sampling, minimizes the risk of cross-contamination, and yields higher quality samples.
  • Larger sample sizes can be analyzed than with traditional methods.
  • Less risk of sample loss due to sample clogging or leaking through conventional sampling devices.
  • Improve accuracy of the monitoring system by reducing cross-contamination risk of samples or contamination of the entire monitoring system by the sample itself.
  • Reduce labor costs associated with traditional analytical techniques
  • Increases flexibility for water quality control testing by allowing on-site analysis, reducing the need for laboratory analysis of samples collected in the field or at remote locations.

stonylab Diaphragm Vacuum Pump

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stonylab Diaphragm Vacuum Pump

StonyLab Oil free Diaphragm Vacuum Pump is an oil-free vacuum pump that provides a reliable vacuum source for evaporation, distillation, solvent filtration, vacuum desiccation, solid-phase extraction, and other lab work. 

The oil-free feature provides cleaner operation, eliminating the need to handle, change or monitor oil.

StonyLab Diaphragm Vacuum Pump offers the advantage of high vacuum without oil or any other liquid. It can run well in an environment with high moisture and high temperature since the pump relies on the metal plate and plastic diaphragm to generate suction force.

Features:

  • 1-year warranty
  • Quick, easy setup, and simple
  • User-friendly operation
  • The pump offers low vibration
  • Quiet and stable performance ;
  • Compact design

Happybuy Air-Operated 13 GPM Double Diaphragm Pump

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Happybuy Air-Operated 13 GPM Double Diaphragm Pump

Happybuy Air-Operated Double Diaphragm Pump is a kind of advanced double diaphragm pump. It is used to transfer the liquid with a viscosity up to 1000cps. 

The pump is made of good quality material and it has a double-acting seal that delivers better performance. It can be used to transport chemicals, water, and viscous liquids. 

The pump is powered by air (90 psi) and it can be used in various applications below.

Features:

  • Type: Double diaphragm
  • Operation Type: Air-operated
  • Inlet/Outlet Port Size/Standard:1/2 inch (12.7 mm) 
  • Air Inlet Size: 1/4 inch(6.35 mm)
  • Max Flow Rate: 13 GPM

Good reasons to choose a diaphragm pump

Diaphragm pumps are the most common pumps used in many industries because they are reliable, robust and easy to install. Here are some of the reasons why you should use diaphragm pumps.

1 They are affordable

Diaphragm pumps are cheap compared to other types of pumps. You can even buy them at prices that are lower than $300.

2 They are easy to install

It is very easy to install diaphragm pumps because they do not require specialized tools. You can even fix them yourself if you can follow instructions properly.

3 They are durable

The lifespan of diaphragm pumps is longer than other types of pumps. The duration may last up to 30 years depending on the application and quality of the pump.

4 They are very powerful

Diaphragm pumps can deliver large quantities of fluids at high pressure levels. They can deliver up to 240 gallons per minute (gpm) or 1000 liters per hour (lph).

Features that you have to consider before buying diaphragm pumps are:

1. Head of the pump- 

This is the vertical distance that the pump can lift liquid vertically.

2. Flow Capacity- 

This is the rate at which liquid can be pumped through the pump

3. Pressure at which the pump operates- 

The normal range is 20 psi (pounds per square inch) and above

4. Maximum liquid temperature-

Maximum allowable temperature

5. Maximum working pressure- 

(Maximum allowable pressure at which it can be used)

6. Discharge size, shape and configuration- 

This is very important as it will determine the flow rate and the maximum head that can be achieved

7. Suction capacity- 

This is the amount of liquid that can be retained by the pump

8. Duty cycle- 

This is a measure of how often a pump can be operated at a given capacity, i.e for a period of one hour, how much discharge can be achieved?

9. Power input- 

This is a measure of how much power is needed to operate a pump

10. Head to power ratio- 

This is a measure of how much head can be obtained from a given amount of power input

11. Ambient temperature range of operation

12. Submersible or not?- 

If yes, then there are many design considerations to take into account.

Frequently Ask Questions-diaphragm pump

Q: What are the advantages of diaphragm pumps?

A: One of the main advantages is that diaphragm pumps are one of the most compact types of pump. Due to their small size, they can be easily mounted on a machine and in most cases, no adjustments will be needed to mount them. They are also very reliable and you can expect them to last for a long period of time with good care.

Q: Can you use a diaphragm pump with different types of liquids?

A: A diaphragm pump works with any type of liquid and its flow rate is quite flexible and can be adjusted with minimal effort.

Q: What is the main disadvantage of diaphragm pumps?

A: The main disadvantage is that they require a lot of maintenance and care in order to last for a long time. Since they use rubber parts for moving parts, they need to be lubricated in order to work properly. If you do not lubricate them, then they will break down quickly.

Q: What is the lifespan of a diaphragm pump?

A: A good quality diaphragm pump can last up to 10 years with proper care and maintenance.

Q: What is the cost range of the diaphragm pumps?

A: As far as price is concerned, they can cost anywhere from $100 up to $5000 depending on the quality and brand.

Conclusion

Diaphragm pumps are easy to use and maintain. They are also very compact in size which makes them easy to mount on a machine without any problem. If you purchase a high quality diaphragm pump, then it will last for a long period of time without any problem.

Written by Sumit Pandey

My name is Sumit Kumar Pandey and I’m a content writer and blogger who specializes in writing about technology, web design, and online marketing.

After working as a research scholar in the engineering field for many years, I’m now a full-time content writer, helping people get more exposure and generate more leads for their businesses.

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