Tips to Save Energy on Pumping System

As renowned drainage submersible pump suppliers and providers of dewatering submersible pumps in India, in the first part of this blog, we managed to share with you 3 great tips on saving energy on your pumping system. 

Taking the same discussion further, here are 4 more tips to save energy on pumping system -

1. Minimizing the system pressure drop

When you think about minimizing the system pressure drop, the best way to do so is through pipe-sizing optimization. The hydraulic friction loss would create a decrease in pressure from one end of a straight pipe to the other end of the pipe. The factors that influence the system pressure drop are pipe size (diameter), flow rate, pipe characteristics (material, surface roughness, etc.), properties of the fluid being pumped and overall pipe length.

2. Implementing proper control valves

The control valves are used in controlling pressure and/or flow. They can assist in reducing energy losses over non-controlled systems like multiple locations with different elevations and distances as well as irrigation systems that have a fixed-speed pump. However, The main functions of control valves are bypassing flow or throttling flow. The throttling process decreases the flow. On the other hand the process increases the pressure. Minimizing excess pressure is possible by bypassing excess flow back to another location or the reservoir.

3. Implementing (VSDs) variable speed drives

The drivers are used for variable-speed operation or fixed-speed. Energy can be saved for many applications simply by implementing variable speed drives. With the help of a variable speed drive, the rotational speed of the pump can be adjusted. This helps in achieving the appropriate head and flow that is required for the process. A variable speed drive often gets added to an existing pump motor system. This helps in slowing down the pump to fulfill actual requirements as compared to the theoretical requirements that come out at the beginning.  When a VSD is finally installed, it can accommodate changing system demands, that include a lot of potential future expansion plans. This proves to be a great method as it results in the lowest life cycle costs and the highest energy efficiency.

4. Eliminating unnecessary uses

Do not overlook this simple method of saving energy by eliminating all the unnecessary use. Such measures include using pressure switches to control the number of pumps in service as well as shutting down any unnecessary pump.

We are the best drainage submersible pump suppliers you’ll come across. Moreover, providing the customers with high quality dewatering submersible pumps in India has always been our ultimate aim. For more details, visit our website www.darlingpumps.in. 

All about solid handling submersible pumps

Darling pumps have always been your trustful pump solution provider.We have always provided you with the best dewatering submersible pumps in India.However, we do not want to be just that. We want our customers to gain knowledge about our world. Therefore, in this blog, we will take you through the information on solid handling submersible pumps.

Firstly, you need to know what solid handling submersible pumps do.Well, these pumps are used to handle the most difficult solids applications. They are used for tasks like raw water lift stations and sewage that are generally unattended and need utmost freedom and reliability from clogging or other downtime maintenance.

When it comes to plants, they demand the water pumps to provide sustained high performance. These kinds of pumps need to have the best possible design to resist clogging. On top of that, they are also required to have minimum size driving motors and controls that reduce operational costs and construction. Wastewater and sewage treatment plants as well as industrial plants, where this service is needed, are other typical installations.

In order to successfully apply the use of solid handling submersible pumps, we need to take into account many elements. On top of knowing the discharge head requirements as well as the capacity of the pump, other factors that require to be analyzed are the following.

• Driver requirements
• Capacity operating range
• Horsepower required throughout the pump&operating range
• Parameters of the liquid being pumped
• Net Positive Suction Head Available (NPSHA) and submergence
• Allowable solid size
• Material of construction
• System head curve
• Maximum operating pressure
• Sump requirements
• Elevation

Now that we have looked into the considerations that we need to keep in mind, let us go on talking about the features of solid handling submersible pumps. Following are the submersible solids handling pump features.

In order to meet user needs, the parameters of these pumps need the units to be available in configurations. These pumps can be of the pull-up type configuration. This allows the customer to conduct an easy inspection by quickly pulling the unit out of the wet well. As the pump gets lowered in place, the discharge connection is made with the discharge elbow.

Apart from providing, the best dewatering submersible pumps in India, darling pumps also provides you with impressive solid handling submersible pumps. 

The performance of our pumps is impressive and always up to the mark.

Choosing Pumps for Jobsite Dewatering

Whether we talk about solid handling submersible pumps or dewatering submersible pumps in India, we always have to know how we can wisely choose a pump. As the renowned providers of solid handling submersible pumps, we are here to help you with the same. As it is only when you know how to choose a pump, that you will be able to finally use it appropriately and get the required results for your benefit.

Following we have put down a few points that you should go through, before making the important decision of choosing a pump for jobsite dewatering.Pump Application Checklist When we talk about the first step that is involved in developing a jobsite dewatering plan, it is to identify the required capacity.Along with identifying that, you also need to analyze discharge head and suction lift at the site.

If you are wondering, what refers to the required capacity, it is the amount of fluid that is required to be moved and the rate at which it needs to be moved. This capacity is measured in gallons per min. However, suction lift refers to the vertical distance of suction which the pump has to overcome in order to bring the fluid into the pump. This distance gets measured from the top of the pumping fluid all the way to the height of the suction end of the pump.

When we talk about the discharge head, it refers to the vertical height of discharge pipe or hose. Once you have been successful in calculating these factors, it is possible to easily determine the appropriate pump that should be used for the application.

However, it is advised that before you select a pump for the job, you should carefully evaluate the site conditions and give an answer for the following questions.

 What has to be accomplished by the pump?

 What is the type of the liquid that requires to be pumped?

 How far would the fluid require to be pumped?

 At what rate will the liquid need to be moved?

 Will there be a need of any auxiliary equipment?

 Will noise be a problem?

 Where the pump would be placed?

 Where the liquid would be discharged?

 Will filtration be required by the application?

Once you analyze all of this, you are good to go. For the best dewatering submersible pumps in India, come to us at Darling Pumps.

All about Sewage Pumps

Whenever sewage-pumping is done, but on a smaller scale or on a larger scale, then submersible sewage pumps has to get into the picture.  A dramatic growth of the submersible pump for sewage pumping has been witnessed since the 1950’s. However, before we get into any more of this, we need to acknowledge the story step by step.  

Here goes.

What is sewage treatment?

The sewage treatment is a process where contaminants are removed from waste water / sewage or effluent.  This process would include biological, physical, and chemical processes that remove these contaminants. It further produces treated water which is environmentally safer. This is also called recycled water. A semi-solid waste or slurry, known as sewage / sludge is usually a by-product of the sewage treatment. This undergoes further treatment before it can be suitable for land application or disposal. 

What are the classes of submersible pumps?

There are typically three classes of submersible pumps that exist.

      1. Smaller submersible pumps

This type of submersible pump is used for light duty & for domestic applications. 

      2. Larger submersible pumps                                                                                              

This type of submersible pump is used in industrial and municipal applications. They are used to pump sewage as well as all types of industrial wastewater. 

     3. Submersible chopper pumps

Submersible chopper pumps are used for churning larger concentrations of solids, whereby large solids particles are shredded to a pumpable form. This in turn can avoid clogging of pipe due to large solids. These are generally used in industrial wastewater and domestic applications.

Submersible pumps are normally used where drainage by gravity is not possible.

What is the famous range of sewage pumps?

Some of the important series of sewage pumps are submersible non clog pump - Unclog Series pumps & Vertical Wet Pit Series - Enviro Pumps & Sump Pumps. 

What are these pumps ideal for?

The above series of sewage pumps are ideal for pumping heavily contaminated water, sewage, effluents, and sludge in variety of Domestic, Industrial & Municipal applications. These pumps are very much ideal for pumping Industrial Waste & Effluents, Govt. & private ETP & STP Plants, pumping Raw Sewage, Sludge Removal, Lifting Stations and Underpasses, Sewage works, River Pollution Cleaning, Open Cast Mines, Tanneries & many more similar applications.

The domestic application includes removing of heavily contaminated water from collection pits, colony settling tanks, private pumping stations or treatment plants etc.

Similarly, the commercial application includes pumping sewage in hospitals & hotels, IT / BPO centres etc. 

On the other hand, the industrial application includes pumping heavy duty sewage / sludge in industries such as paper, cement, Pharma, steel etc. These pumps are very apt for pumping industrial waste from collection pits, settling tanks etc.  

It also be used for various municipal applications like sewage disposal and mass transfer of sludge etc.

Introducing SVT (Submersible Vertical Turbine) Pumps

In the last blog, we talked about vertical turbine pumps and their basics. We discussed various features of these pumps, what they are, their applications and their construction along with their limitations.

Although vertical turbine pumps are very popular for raw water pumping, but they comes with their own limitations like – they require dedicated pump house, are difficult to install, has limited operations during monsoon, prone to frequent maintenance post monsoon, high spares & maintenance cost, complicated & time consuming maintenance so on…

Add to this, at times Vertical turbine pumps cannot be used when they are needed the most i.e. summer time. As water level goes down normal VT pumps cannot be used & even if they are put to use somehow there is a huge risk of abnormal wear & tear if raw water has any sand content.'

So, what do the modern day engineers do?

Live with these limitations or opt for peace of mind….

The answer lies in “Darling Pumps” - who has introduced a new concept of -  Submersible Vertical Turbine (SVT pumps).

Darling - SVT Series pumps are equipped for turbid raw water pumping. They are an ideal replacement for conventional Vertical Turbine pumps & stand good where consistent & mass water supply is to be made. These pumps can be regularly seen in govt. water supply schemes / projects, Power generation plants etc.

The SVT (submersible vertical turbine) pumps do not only contain advanced features but also provide real value for money to its users. These pumps are ideal for various applications and situations.

If we go on exploring the advantages of the submersible vertical turbine pumps we discover that there are lots of them. Especially when we put up a direct comparison between the conventional vertical turbine pumps and the submersible vertical turbine series pumps, we understand why the latter is a better choice.

Therefore to make you understand this better, we will be sharing a detailed comparison between the two pumps, in the coming blogs.

The comparison would hold various basis including their cost, assembly, shaft, bearing, disassembly, civil work, routine maintenance, spares etc.

We think that the use of SVT (submersible vertical turbine) series pump would majorly benefit the users in terms of time, cost as well as ease of application.

All about Vertical Turbine Pumps

A Vertical Turbine Pump is also referred to as a deep well turbine pump. It is mixed flow type pump or a vertical axis centrifugal which comprises of stages. These stages accommodate stationary bowls that possess guide vanes. They also have rotating impellers.

When are they used?
When the pumping water level is below the limits of Vertical centrifugal pump that is the time when a Vertical Turbine Pump comes into use. They come with a higher initial cost and comparatively a difficult installation and repair process. When we talk about the pressure head developed, it depends on the speed at which the impeller is rotated along with the diameter of the impeller. However, when a single impeller is used to develop the pressure head it’s not so great. With the help of more stage or bowl assemblies, an additional head can be obtained.

The Way They are Constructed

A Vertical Turbine Pump is basically made up of three parts -

Discharge Column
The job of this part is to not only to connect the pump head and the bowl assembly but it is also to conduct water from the bowl assembly to the pump head.

Discharge Head
This part consists of the base. It is this base from which the shaft assembly, the bowl assembly, and the discharge column are suspended.

Pump Element
This element is made up of one or more stages or bowls. Each of the bowls that it is made up of consists of a diffuser and an impeller.

Limitations of the Vertical Turbine Pump

A Vertical Turbine Pump holds certain limitations to it. Here are few of them -

Maintenance
The vertical turbine pump requires quite a bit of attention when it comes to the regular maintenance of the pump. The pump also requires more spares to be maintained.

Disassembly
The vertical turbine pump is very difficult to dismantle. The pump also requires very expensive material handling equipment.

Assembly
The assembly process of a vertical turbine pump is as complicated as the process of disassembly. We hope the information above gave you a good idea about the vertical turbine pumps.

In the upcoming blog, we will discuss about Submersible vertical turbine pumps and how they overcome the limitations of vertical turbine pumps. To know more, call Darling Pumps at +91 99819 92838.