End suction pumps are the ideal choice to handle a variety of fluids with varying viscosities. Used in multiple industries, these pumps have a simple but reliable design. Another massive advantage of end-suction pumps is that they are available at affordable prices, making them the best choice for customers across niches.
Here, in this week’s post, we list out the features of end-suction pumps along with its pros and cons. Our team at Sintech, leading end-suction pump manufacturer and supplier in India, can help you decide whether this pump is the right choice for your specific requirements. Get in touch with our pump experts to find answers to all your queries.
Before we get to the advantages and disadvantages, let’s first check out,
What is an end suction pump?
It’s a type of centrifugal pump. Generally, as the name implies, it has an impeller with suction happening at one end. The other side of the pump discharges the fluid. As the fluid passes through the impeller, it increases in velocity. Diffusion then converts the fluid of high velocity into a high pressure, as it exits the other end.
End suction pumps can be operated in different ways using – electric motors, diesel motors, or even air motors and steam turbines. Do note that there are several types of end-suction pumps. Hence, make sure to get in touch with the best pump dealers in India, to help you identify the right pump type that best fits your needs.
Two Major Classifications of End Suction Pumps
1. Frame Mounted End Suction Pump
In this type, the shaft and bearings are separate from the pump motor. The pump motor is attached to the motor shaft. The frame-mounted end suction pump offers:
Lower cycle costs
2. Close Coupled End Suction Pumps
In this type, there are no separate pump shafts and motor shafts. Both are the same. The impeller is attached to the end of the motor shaft. The benefits of close-coupled end suction pumps include:
Lower mounting space
Compared with frame-mounted end suction pumps, close coupled end suction pumps have a higher risk of motor damage when the seal fails.
Now, that we’ve seen the basic design of the end suction pump and it’s two types, let’s take a look at the applications.
Where can end-suction pumps be used?
End suction pumps are used in a variety of industries. It can be used for all industrial applications that require a fluid transfer. Here are some of the common industries where end-suction pipes are used:
Oil and gas industry
Chemical processing plants
Sprinklers for irrigation
HVAC and refrigeration
Food processing and manufacturing
As mentioned above, end suction pumps can handle almost all types of fluids – viscous oils, abrasive materials, corrosive chemicals and water at various temperatures. Hence, they are widely used in a variety of applications.
Pros of End Suction Pumps
Low initial cost and High Efficiency
It’s the biggest reason why a large number of clients choose end-suction pumps. Besides, these pumps offer high efficiency, considering the low initial investment.
Simple Design with Minimal Moving Parts
The pump does not use any valves and contains only a few moving parts. Hence, it requires less installation space. The basic operation of an end suction pump is simple – the motor turns the impeller. The impeller transfers the liquid from Point A to Point B.
Since the pump has a simple design, it requires minimal maintenance, which in turn, further reduces pump operational cost. The simplicity makes it an ideal choice for industries that depend on the reliability of the pump, to ensure continued operation with minimal downtime.
Though end suction pumps have many benefits, they are not the ideal choice for all applications. Let’s take a look at the disadvantages of these pumps.
Cons of End Suction Pumps
It requires priming
As explained above, the pump’s operation depends on the impeller. Hence, it’s essential to prime the impeller properly before using the pump. Priming is the process of filling the pump with the fluid before operating it.
It can also cause cavitation
Inadequate or improper priming can lead to cavitation. When the air gets into the pump along with the fluid, it leads to cavitation. For instance, if the pump is operated at a higher speed before priming is complete, it causes air to get into the impeller. Alternatively, air also gets in when the high speed of the fluid leads to the formation of vapor bubbles. The bubbles burst when they are moved, leading to cavitation. Cavitation leads to corrosion of the casing and the impeller.
Now, coming to the big question, is the end suction pump the right choice for your application?
Sintech can Help You
Before you opt for an end suction pump, there are several factors to consider like – the type of fluid, required output volumes, and so on. While end-suction pumps offer several advantages at low prices, it may not be the best decision for all applications. You need the right pump consultant to help you.
Get in touch with our pump experts here at Sintech. As the leading industrial pump suppliers and manufacturers in India, we help you find the right pump at the most competitive pricing. We also offer extended service to our clients post-sales.