Gear pumps are used to move liquids and other fluids. There are two types of gear pumps: external gear pumps and internal gear pumps. External gear pumps are used for higher pressure applications and internal gear pumps are used for lower pressure applications.
Gear pumps are a type of rotary pump used to transfer liquids, typically with viscosities between 1 and 800 centistokes. They are one of the most common types of pumps and are used in a variety of industries such as automotive, agricultural, petroleum, and chemical. In this blog post, we will discuss the two basic classifications of gear pumps – internal and external – and their respective working principle, construction and design, advantages and disadvantages, maintenance and troubleshooting, material compatibility, power requirements, temperature range, flow rates, pressure ratings, noise and vibration, life expectancy, cost, applications, safety considerations, and industry standards.
Types of Gear Pumps
To understand the two basic classifications of gear pump, it is important to first look at the different types of gear pumps available.
Two Basic Classifications of Gear Pumps
When it comes to gear pumps, there are two basic classifications: internal and external. Internal gear pumps are the most common type, and consist of two meshing gears inside a sealed casing. This type of gear pump is generally used for low-pressure applications, such as pumping liquid and gas. On the other hand, external gear pumps feature two gears with external teeth, and are better suited for high-pressure applications. Additionally, external gear pumps are often used for viscous liquids, such as engine oil and hydraulic fluid.
No matter which type of gear pump you choose, it is important to understand the different classifications and their applications. This knowledge can help you make an informed decision when selecting the right gear pump for your needs.
Working Principle
In this article, we will explore the two main types of gear pumps – Internal Gear Pumps and External Gear Pumps – and their respective working principles.
Internal Gear Pump
An internal gear pump is a type of positive displacement pump that uses two meshing gears to transport liquid or gas from the inlet to the outlet of the pump. The gears are placed inside a casing and are driven by a drive shaft, which rotates the gears and creates a vacuum that draws the fluid in. The fluid then travels through the pump, where it is delivered out to the discharge port.
The two basic classifications of gear pump are External Gear Pump and Internal Gear Pump. The working principle of an internal gear pump is that it creates a vacuum as the gears roll against each other, which draws the fluid in and then pushes it out to the discharge port. This type of pump is typically used for low to medium viscosity fluids, and is often used in applications such as lubrication systems, fuel systems, and chemical processing.
By understanding the working principle of an internal gear pump, you’ll be better equipped to choose the right pump for your application. This type of pump is reliable, efficient, and capable of handling a wide range of liquids and gases.
External Gear Pump
When it comes to understanding the working principle of an external gear pump, it’s important to know that the two basic classifications of gear pumps are radial and axial. An external gear pump is a type of radial gear pump, meaning it utilizes two external gears that rotate in opposite directions and mesh to form an enclosed chamber. As the gears rotate, liquid is drawn from the suction side of the pump and forced out of the discharge side. The pressure of the liquid is determined by the size and speed of the gears, as well as the size of the chamber. This type of pump is ideal for applications that require low flow rates, such as those found in automotive, aerospace and medical devices.
Construction and Design
There are two main classifications of gear pumps – internal and external. Let’s explore each type in more detail.
Internal Gear Pump
Internal gear pumps are one of the two basic classifications of gear pumps based on their construction and design. An internal gear pump consists of two gears, a drive gear and an idler gear, that are enclosed within a housing. The drive gear is driven by an external power source, such as a motor or engine, and meshes with the idler gear, drawing in fluid through intake ports and pushing it out through discharge ports. Internal gear pumps are used in a variety of applications, such as in fuel delivery systems, hydraulic systems, and as metering pumps.
The advantages of internal gear pumps include their ability to handle difficult fluids, such as those that are viscous or contain suspended solids, as well as their ability to produce a smooth, uniform flow. Additionally, internal gear pumps are self-priming and do not require a check valve in the suction line.
The disadvantages of internal gear pumps include their limited pressure capabilities and the difficulty in servicing them. Additionally, internal gear pumps are not suitable for applications that require high levels of precision, such as measuring exact amounts of fluid.
Overall, internal gear pumps are a reliable and cost-effective solution for many applications, but it is important to evaluate the specific requirements of an application before selecting a gear pump.
External Gear Pump
An external gear pump is a type of rotary positive displacement pump that has two gears, typically of equal size, that rotate in opposite directions. The gears are enclosed in a pump housing with an inlet and outlet port. As the gears rotate, they create a vacuum on the inlet side of the pump, which draws in fluid from the inlet port and then compresses it between the teeth of the gears and the pump housing.
The fluid is then forced out of the outlet port. External gear pumps are typically used for transferring, pressurizing, and pumping fluids in industrial and commercial applications. They are typically used for transferring and pressurizing high viscosity fluids, such as heavy fuel oils, viscous lubricants, and some paints. They are also used to move and circulate lubricants in industrial machines.
Advantages and Disadvantages
Looking at the two basic classifications of gear pump, let’s dive into the advantages and disadvantages of each type of gear pump.
Internal Gear Pump
An internal gear pump is a type of rotary positive displacement pump which uses two meshing gears to transfer fluid from the suction side to the discharge side of the pump. This type of pump offers several advantages, such as low vibration and noise levels, ease of maintenance, and relatively low cost. Internal gear pumps also have the ability to handle liquids with varying viscosities, making them suitable for a wide range of applications.
However, there are also some drawbacks associated with this type of pump, such as their relatively low efficiency and the need for careful alignment of the gears. Additionally, internal gear pumps cannot handle large particles or abrasive liquids. Therefore, it is important to consider all of the advantages and disadvantages of an internal gear pump before making a purchase decision.
External Gear Pump
External gear pumps are a type of rotary positive displacement pump designed to move fluid using two internal gears which rotate against each other. These pumps are commonly used in industrial, automotive, and agricultural applications. The advantage of an external gear pump is that it is able to move a large volume of fluid over a wide range of pressures with a relatively small motor. Additionally, they are compact, reliable, and relatively inexpensive.
However, external gear pumps also have some drawbacks. They require frequent maintenance due to their moving parts, and they are prone to cavitation, which is when air bubbles form in the fluid causing the pump to become inefficient. Additionally, they are sensitive to pressure surges and can suffer from low volumetric efficiency.
Overall, external gear pumps can be a good choice for many applications, depending on the specific needs of the user. Their ability to move a large volume of fluid at a wide range of pressures, combined with their compact size and relatively low cost make them a popular choice for many applications. However, their sensitivity to pressure surges and need for frequent maintenance should be taken into consideration when making a purchase decision.
Maintenance and Troubleshooting
To understand the differences between internal and external gear pumps, let’s review the two basic classifications of gear pumps.
Internal Gear Pump
Internal gear pumps are one of the two basic classifications of gear pumps, the other being external gear pumps. These types of pumps are used in many industrial and manufacturing operations, and are particularly effective at transferring fluids with low to moderate viscosity. When it comes to maintenance and troubleshooting, some of the key considerations for internal gear pumps include checking the gear and shaft alignment, inspecting the seals and bearings, and regularly inspecting the pressure relief valve. Additionally, it is important to ensure that all connections are secure and that the pump is adequately lubricated. With regular maintenance, internal gear pumps can provide reliable performance for many years.
External Gear Pump
When it comes to maintenance and troubleshooting of gear pumps, one of the most commonly used types is the external gear pump. This type of pump consists of two spur gears that rotate against each other within a casing. The casing is filled with a liquid, and as the gears rotate, they create a vacuum that draws the liquid into the pump. The liquid then passes through the gears and is expelled on the other side.
External gear pumps are highly reliable and efficient when properly maintained. To ensure the longevity and performance of your pump, it is important to keep the gears and casing clean and free of debris. It is also important to check the pump’s casing for any signs of wear and tear, as well as to inspect the gear teeth for any signs of wear or damage. If any issues are found, it is important to replace the affected parts as soon as possible.
Additionally, it is a good idea to regularly lubricate the pump with a high-quality oil to ensure that the gears are able to move smoothly and efficiently. It is also important to check the oil level in the pump and to replace it as necessary.
In order to reduce the risk of pump failure, it is also important to routinely inspect the pump’s seals and gaskets for any signs of wear or damage. These parts are essential in preventing liquid from leaking out of the pump, so it is important to ensure that they are in good condition at all times.
By following these simple maintenance and troubleshooting steps, you can help ensure the optimal performance of your external gear pump for years to come.
Material Compatibility
The two basic classifications of gear pumps are Internal Gear Pumps and External Gear Pumps, both of which have distinct material compatibility considerations.
Internal Gear Pump
Internal gear pumps are a type of positive displacement pump which use the meshing of two gears to transfer fluid. These pumps are often used when a specific material compatibility is needed, such as when pumping a lubricant or a highly viscous fluid. The main benefits of internal gear pumps are that they are able to handle high viscosity fluids and are available in a variety of sizes, making them a great option for many applications.
Additionally, they provide excellent suction capabilities and have a low noise level. When it comes to material compatibility, internal gear pumps are able to handle a variety of materials, including polymers, chemicals, and oils. This makes them a great choice for applications that require a material to be pumped that is not compatible with other pump types.
External Gear Pump
When it comes to material compatibility in gear pumps, one of the most common types is the external gear pump. This type of pump utilizes two identical, interlocking gears that rotate outward from the center, with one gear mounted on the pump shaft and the other mounted externally. This type of pump is ideal for transferring and compressing liquids with a high degree of viscosity, such as motor oil, as the two gears provide an efficient and uniform pressure. Additionally, this type of pump is commonly used in applications such as fuel pump systems and hydraulic systems due to its ability to handle a wide variety of liquids and gases.
Power Requirements
To better understand the different types of gear pumps, it is important to first look at the power requirements for each.
Internal Gear Pump
When talking about the power requirements of gear pumps, one of the two basic classifications is the internal gear pump. This type of pump is known for its ability to produce a continuous, high-pressure flow of liquid with very low noise levels. It is also capable of handling a wide range of viscosities and is commonly used in a variety of industries.
The internal gear pump utilizes two meshed gears that rotate in opposite directions, which create a vacuum that draws liquid into the pump. The liquid is then squeezed between the gears, creating high pressure. The pressure is then released through an outlet port. The advantage of this type of pump is that it can handle a wide range of viscosities without causing excessive wear and tear.
The power requirements for an internal gear pump depend on the size of the pump and the viscosity of the liquid being pumped. Generally speaking, the larger the pump, the higher the power requirement. Additionally, higher viscosity liquids will require more power than lower viscosity liquids.
Overall, the internal gear pump is an effective and reliable way to achieve a continuous, high-pressure flow of liquid with very low noise levels. Its ability to handle a wide range of viscosities and its relatively low power requirements make it an attractive choice for many applications.
External Gear Pump
When it comes to understanding power requirements of gear pumps, one of the most important factors to consider is the type of gear pump. External gear pumps are one of the two basic classifications of gear pumps, the other being internal gear pumps.
External gear pumps are pumps that have their gears located outside of the pump body, typically connected to its drive shaft. This type of pump utilizes external force to create a vacuum, which then pushes the liquid through the pump. This pumps are highly efficient and can be used to transfer a variety of fluids, from water to oils and even corrosive liquids.
Since external gear pumps require external force to operate, they can be powered by a variety of sources such as electric motors, hydraulic motors, air motors or even a manual hand crank. This makes them incredibly versatile, as they can be used in a wide range of applications, from industrial machinery to medical equipment.
In summary, external gear pumps are one of two basic classifications of gear pumps, and they require external force to operate. They can be powered by a variety of sources, making them incredibly versatile and capable of being used in a wide range of applications.
Temperature Range
Two classifications of gear pumps are internal gear pumps and external gear pumps. Let’s take a closer look at the temperature range of each of these pumps.
Internal Gear Pump
When it comes to temperature range, internal gear pumps are ideal for a wide range of applications. These pumps are designed to handle a range of up to 200°C (392°F), making them suitable for high-temperature applications. They are also capable of handling a range of low temperatures, such as -40°C (-40°F), allowing them to be used in cold climates.
Internal gear pumps are also useful for applications with different temperatures, as they can be used to transfer both hot and cold media without any issues. This makes them an ideal choice for temperature-sensitive applications.
In addition, internal gear pumps are designed to be highly efficient and reliable. They are capable of providing a continuous and reliable flow of fluid with minimal pressure, helping to ensure that operations remain uninterrupted.
Overall, internal gear pumps are a great choice for applications with a wide range of temperatures. They are highly efficient and reliable, making them an ideal choice for temperature-sensitive applications.
External Gear Pump
When it comes to the temperature range of external gear pumps, they are typically suited for use in applications with a wide range of temperatures. This is because external gear pumps are built with materials that can withstand even the most extreme temperatures. For example, they can be made with stainless steel or brass, which are both resistant to corrosion and high temperatures. Additionally, external gear pumps are designed to be highly efficient and can be used to pump viscous fluids with higher temperatures. This makes them an ideal choice for applications where temperature range is a factor.
Flow Rates
Gear pumps are typically classified as either internal or external depending on the location of the gears. Let’s explore the differences between each type of gear pump in terms of their flow rates.
Internal Gear Pump
When it comes to flow rates, one type of gear pump that stands out is the internal gear pump. This type of gear pump utilizes a set of two meshing gears to move the liquid from the suction side to the discharge side of the pump. The two gears are arranged in such a way that one gear is internal to the other, hence the name “internal gear pump”.
This design allows the pump to create a near-zero-leakage, positive displacement action that can handle a variety of viscosities and flow rates. The internal gear pump also has the advantage of being able to handle large amounts of air without cavitation, which makes it ideal for applications where air can be ingested into the pump. As a result, internal gear pumps are often used in the chemical and petrochemical industries, as well as the food and beverage industry.
External Gear Pump
External gear pumps are one of two basic classifications of gear pumps, and they are used to provide a steady and reliable flow rate. These pumps use two external spur gears that rotate in opposite directions, which forces fluid to flow from the suction side of the pump to the discharge side. The size of the gears, as well as the spacing between them, determines the flow rate of the pump. External gear pumps can be used in a variety of applications, including oil transfer, fuel transfer, and many industrial processes.
Pressure Ratings
In terms of pressure ratings, there are two basic classifications of gear pumps: internal gear pumps and external gear pumps.
Internal Gear Pump
Internal gear pumps are a type of positive displacement pump that rely on two meshing gears to move the liquid through the pump. These pumps are commonly used in industries like oil and gas, chemical, water, and food processing due to their ability to transfer high-pressure liquid with minimal leakage and pulsation. When it comes to pressure ratings of internal gear pumps, they typically operate at a pressure range of up to 250 bar, or 3625 psi. This makes them suitable for a variety of different applications, from high-pressure chemical transfer to water pressure boosting. However, it is important to note that the exact pressure rating of the pump will depend on the specific model, as well as the material used for the pump body and gears.
External Gear Pump
When it comes to discussing gear pumps, there are two basic classifications – external and internal gear pumps. When it comes to pressure ratings, external gear pumps are usually preferred over internal gear pumps due to their higher pressure ratings. This is because external gear pumps have an additional housing around the gears which can withstand higher pressure than internal gear pumps, which only have a single wall around the gears.
This makes external gear pumps ideal for applications where higher pressures are required, such as hydraulic systems and fuel injection systems. In addition, external gear pumps are also more efficient than internal gear pumps, making them a great choice for applications where efficiency is important.
Noise and Vibration
The two basic classifications of gear pumps are internal gear pumps and external gear pumps. Let’s explore each one in more detail.
Internal Gear Pump
When it comes to noise and vibration, internal gear pumps are generally considered to be a better choice than external gear pumps. Internal gear pumps use two meshing gears to create a series of chambers around the interior of the pump body. These chambers allow the gears to move in a circular motion, creating a vacuum that pulls liquid into the pump. The design of the pump reduces the amount of friction between the gears and the liquid, resulting in less noise and vibration. Additionally, internal gear pumps can be designed with a variety of materials and configurations to reduce noise and vibration even further.
External Gear Pump
When it comes to noise and vibration, external gear pumps are a great choice for a variety of applications. External gear pumps are classified as positive displacement pumps, meaning they are able to effectively move a set volume of fluid with each revolution. This is due to their design, which consists of two external gears that mesh and rotate together to move the fluid.
The basic classifications of external gear pumps are single-stage and double-stage. Single-stage pumps are designed to move a certain amount of fluid at one time, while double-stage pumps are able to move larger volumes of fluid at a higher pressure.
In terms of noise and vibration, external gear pumps are generally much quieter than their internal gear counterparts. This is thanks to the fact that the two external gears mesh together to create a much smoother operation. The external gears also help to reduce vibration, which can be caused by the internal gears of an internal gear pump. This makes external gear pumps ideal for applications that require a quieter operation and less vibration.
Overall, external gear pumps are an excellent choice for a variety of applications due to their quiet and low-vibration operation. They are also relatively easy to maintain, making them a great option for any application where noise and vibration are a concern.
Life Expectancy
There are two main types of gear pumps: internal and external. Let’s take a closer look at the differences between the two.
Internal Gear Pump
When it comes to life expectancy, internal gear pumps are one of the most reliable pump types available. With proper maintenance, internal gear pumps can last for decades, making them a great long-term investment. The two basic classifications of gear pumps are external and internal. An internal gear pump has the teeth of the gears located inside the pump body, while an external gear pump has the teeth of the gears located outside the pump body.
This internal design allows for a more efficient pump, which can create a higher pressure and flow rate, as well as reduce the risk of cavitation. Additionally, internal gear pumps are often less expensive than external gear pumps, making them a great choice for many applications. In short, internal gear pumps provide reliable, long-term performance at a competitive price.
External Gear Pump
When it comes to life expectancy, external gear pumps are a great choice. An external gear pump consists of two external spur gears, which mesh together to form a closed loop. This closed loop ensures that liquid is forced through the pump chamber in a continuous, efficient manner. The life expectancy of an external gear pump varies, depending on the application and the pump’s design.
In general, however, external gear pumps can offer a long lifespan when compared to other types of pumps. This is due to the robust construction and design of the external gears, which are made from high-strength materials that are resistant to wear and tear. Furthermore, the external gear pump is typically easy to maintain and repair, which can help to extend its life expectancy.
Cost
Now that we’ve discussed the two basic classifications of gear pumps, let’s take a look at the associated costs.
Internal Gear Pump
When it comes to cost, one of the most common types of gear pumps used in industrial applications is the Internal Gear Pump. This type of pump offers a number of advantages, such as low cost and low maintenance requirements. Internal Gear Pumps are usually more economical than external gear pumps, making them a great choice for applications where cost is a major factor.
Additionally, these pumps tend to last longer and require less maintenance than external gear pumps, making them an even more attractive option for cost-conscious users. In terms of performance, Internal Gear Pumps are capable of providing a consistent and reliable flow of liquids, making them an ideal choice for a variety of industrial applications.
External Gear Pump
When it comes to cost, external gear pumps are one of the more cost-effective solutions available. This type of pump is designed to be robust and reliable, and with proper maintenance, can last for many years. Additionally, the cost of parts and labor for repairs is usually lower than for other types of pumps. As a result, an external gear pump can be an attractive option for those looking for an economical solution for their pumping needs.
Applications
Let’s now explore the applications of each classification.
Internal Gear Pump
An internal gear pump is a type of positive displacement pump that uses two gears to move fluid from the inlet port to the outlet port. It is one of the two basic classifications of gear pumps, the other being the external gear pump. Internal gear pumps are used in many applications due to their ability to handle a wide variety of liquids, including high-viscosity materials. They are also popular due to their relatively low cost and easy maintenance.
Internal gear pumps can be used to move liquids with low or high viscosity and can even handle some solid particles in suspension. Common applications include industrial and automotive lubrication, fuel transfer, and hydraulic systems in many different industries, such as chemical and food processing. They are also used in medical devices, such as dialysis machines, and in the production of pharmaceuticals.
Due to their design, internal gear pumps are capable of producing a steady flow of fluid with minimal pulsation. This makes them ideal for applications where a consistent, low-pressure flow is needed. Additionally, they are often used in applications where the pressure needs to remain at a constant level, as the pump is able to maintain a certain pressure even when the inlet and outlet pressures vary.
To summarize, internal gear pumps are a type of positive displacement pump that use two gears to transfer fluid from the inlet port to the outlet port. They are used in many applications due to their ability to handle a wide variety of liquids and are capable of producing a steady, low-pressure flow with minimal pulsation.
External Gear Pump
An external gear pump is a type of rotary pump that is typically used for applications such as hydraulic power transmission, fuel transfer, and aerospace applications. It is known for its reliability and efficiency, making it a popular choice for many industrial and commercial applications. The external gear pump works by using two meshed gears that rotate in opposite directions to create a pumping action. This pumping action draws fluid into the pump from the inlet port and then pushes the fluid out the outlet port.
The two basic classifications of gear pumps are internal and external. An external gear pump is an external device with an outer casing or housing that contains two meshed gears. This type of pump is typically used in applications that require a large amount of pressure and flow, such as hydraulic power transmission, fuel transfer, and aerospace applications. The external gear pump is capable of pumping a wide variety of fluids, including oil, gasoline, and water. It is also known for its ability to provide consistent, reliable performance and is generally maintenance-free.
In summary, an external gear pump is a type of rotary pump that is typically used in applications such as hydraulic power transmission, fuel transfer, and aerospace applications. It is known for its reliability and efficiency, making it a popular choice for industrial and commercial applications. The two basic classifications of gear pumps are internal and external, with external gear pumps being the most commonly used in applications requiring a large amount of pressure and flow.
Safety Considerations
Now that we have discussed the basics of gear pumps, let’s look at the safety considerations for both internal and external gear pumps.
Internal Gear Pump
When it comes to gear pumps, the two basic classifications are internal gear pumps and external gear pumps. Internal gear pumps are often the choice for applications that require a positive displacement pump due to their ability to handle high-viscosity fluids and produce a constant flow, regardless of pressure. However, with all gear pumps, safety considerations must be taken into account, especially when it comes to internal gear pumps.
Internal gear pumps have a small clearance between the rotor and the casing, which could potentially create a hazardous condition if the pump is run with insufficient lubrication or the wrong type of fluid. To ensure safe operation, it is important to ensure that the pump is sized correctly for the application, that it is supplied with the correct lubricant or coolant, and that it is inspected regularly for wear or damage. In addition, it is important to ensure that the pump is not exposed to excessive temperatures, pressures, or speeds, as this could cause damage to the pump and compromise its performance.
By following these safety considerations and maintenance protocols, internal gear pumps can be a reliable and efficient choice for many applications.
External Gear Pump
When it comes to safety considerations for external gear pumps, it is important to understand the two basic classifications of these pumps – rotary and progressive cavity. Rotary external gear pumps are typically used for low-pressure applications with low-viscosity fluids. On the other hand, progressive cavity pumps are often used in higher pressure applications with higher-viscosity fluids.
To ensure that the external gear pump is operating safely, it is important to check for the appropriate safety features. For instance, the pump should be equipped with an appropriate safety valve or pressure relief device to prevent over-pressurization. The pump should also be designed with a fail-safe system to shut off the pump in case of malfunction. Additionally, it is important to ensure that the pump is properly sealed and that any exposed components are shielded to protect against potential hazards.
In summary, when it comes to safety considerations for external gear pumps, it is important to understand the two basic classifications of these pumps and to make sure the pump is equipped with the appropriate safety features. Properly designed and maintained external gear pumps can provide reliable and efficient operation for many years.
Industry Standards
Let’s now dive deeper into the two main classifications of gear pump: internal gear pumps and external gear pumps.
Internal Gear Pump
When it comes to industry standards for gear pumps, one of the most commonly used styles is the internal gear pump. This type of pump is well-suited for applications where a low-pressure, high-volume fluid needs to be moved with accuracy and precision. In addition, internal gear pumps are often used when the fluid that needs to be moved can be contaminated with solid material or when the flow needs to be pulsated and controlled.
Internal gear pumps are classified into two basic types: single-acting or double-acting. Single-acting pumps use one gear to move the fluid, while double-acting pumps use two gears to move the fluid in both directions. The two types of internal gear pumps have different advantages and disadvantages, making them suitable for different applications.
For instance, single-acting pumps provide a higher volumetric efficiency than double-acting pumps, making them ideal for applications where a high-volume, low-pressure fluid needs to be moved quickly. On the other hand, double-acting pumps provide greater flexibility, as they can be used to move a wide variety of fluids, including those that are highly viscous or corrosive.
In conclusion, internal gear pumps are one of the most popular types of gear pumps for industrial applications. They are available in two basic types: single-acting and double-acting, and each type has different advantages and disadvantages, making them suitable for different applications.
External Gear Pump
When it comes to industrial standards, external gear pumps are one of the most widely used pumps in the market today. These pumps are used to move a variety of liquids, including oils, fuels, and water. External gear pumps consist of two external gears that rotate in opposite directions. As the gears rotate, they create a vacuum within the pump that pulls the liquid in. The liquid is then pushed out of the pump under pressure.
External gear pumps are very reliable and durable, and they can handle a wide range of viscosities, making them ideal for many different applications. Additionally, they are relatively easy to maintain and repair.
External gear pumps are a great choice for applications that require high-pressure capabilities and are often used for hydraulic systems and fuel injection systems. While external gear pumps are very reliable and efficient, they can be more expensive than other types of pumps, such as internal gear pumps.
Overall, external gear pumps are a great option for many industrial applications and provide reliable performance for years to come. They are a great choice for those looking for a durable and efficient pump that is cost-effective in the long run.
Conclusion
In conclusion, gear pumps are an efficient and reliable type of pump used in many applications. There are two basic classifications of gear pumps- internal gear pumps and external gear pumps- which have different working principles, construction and design, advantages and disadvantages, power requirements, temperatures, and flow rates. They are also used in different industries and have to meet certain industry standards. Understanding the differences between the two types of gear pump is essential in making the right choice for any application.
Related Post: