Friday 21 December 2018

WHAT FEATURES SHOULD YOU LOOK FOR IN SEWAGE PUMPS?

There are various types of pumps that are available in the market these days. All these pumps are different as they are meant for different purposes & comes along with distinctive features to achieve such purpose. It is up to user to understand the criticality of his requirement & go for the pumps which really can satisfy his purpose. For example for water containing any form of solids, you need  solid handling pumps, a regular pump will not serve the purpose.


Sewage pumping is a complex field, wherein at times it is difficult for user to predict what he might have to handle next. Here is where the experience of a reliable pump manufacturer comes in to the picture. Remember that tough conditions require tough solutions.

Good & reliable products are those which are loaded with the features which are of practical utility to the end user. In case of a sewage pump along with some basic features, consumer should also consider few critical features which can make his life easy. Understanding these critical features will not make his choice easy but will also help him get optimum results from his pump.

The following is the list of features that are imperative for a sewage pump to be a good one:
1. Better solid handling passages for clog free impeller design.
2. Pump should be equipped with highly efficient motors, which have built-in protection from temp. rise, dry running, overloading as well as mechanical jamming.
3. Reliability of Mechanical seals, what kind of discharge pressure seals are exposed too.
4. Whether pump be can used for pumping fibrous solids with some kind of spiral cutting plate like arrangement.
5. Can pump be used for small pit size or receding water levels without overheating. Can pump be provided with cooling jacket arrangement?
6. How easy it is to handle & fit the pump?

If a sewage pump stands good on all of above impeccable features, one shouldn’t doubt the decision of purchasing them! However, not all providers are able to match the standard of providing so many of such features.

At Darling pumps, we manage to work towards achieving a standard where we can constantly provide our customers with innovative products that possess relevant features. Our sewage pumps come along with all these ingenious qualities and create benchmarks of productivity achieved through them.

On top of this, we also offer a special series of sewage water pumps which can withstand hot temperature liquids successfully. This is what makes us stand out of the crowd. Therefore, when you are looking for sewage water pumps, select a provider who offers things which are relevant to your purpose. As a consumer of sewage water pumps, it’s highly crucial to remember one criterion, ‘Always keep quality above price’.

Often, the consumers are lured into believing that a little sacrifice on the quality against price will not matter in the long run. However, the reality is exactly the opposite. Nevertheless, with the difference in experiences of using a product with lower quality and using another with higher quality, every customer finally comes around to this reality.
So, the choice is yours! Do you want to be a customer who makes a mistake and learns or one who’s SMART enough to avoid the mistake altogether!

Monday 29 October 2018

Exploring the world of Submersible Pumps

When it comes to the world of water pumps in general, there are many options. Each pump has a different design and serves a different purpose. They differ in sizes, shapes, capacities, prices etc. They also differ in quality depending on which provider the customer chooses to go for.




However, in this large world of water pumps, there is also a unique category of pumps i.e. the submersible pumps. The general perception is that submersible pumps are good or are available only as sewage pumps. Is it so?

No, today there are few good companies who are offering Submersible pumps for all kind of water processes. i.e. from pumping Clear Water to Pumping Slurry. In this article, we’ll be sharing the very basics of a submersible pump.

• How does it get its name?
A submersible pump is called so because of its ability to operate in fully submerged condition, in water. It is also known by the name of an electric submersible pump.

• The motor of a submersible pump
The motor of a submersible pump is close-coupled (mounted on common shaft) to the pump & is like a heart of the pump. Sealing forms a very important aspect of motor, sealing can be either mechanically sealed or it can be hermetically sealed.

• The basic function of a submersible pump
A submersible pump basically aims at pushing the water to the surface. It functions in this way by converting the rotary energy into kinetic energy and further converting that into pressure energy.

• How does the pump execute this process?
This process is executed by pulling of the water into the pump. Firstly, it goes in the intake. This is where the rotation of the impeller starts pushing the water through the Volute. And then, from here, it finally goes to the surface.

• Why are submersible pumps advantageous?
Few of the major advantages of a submersible pump is that it is self-priming, no suction lift limitations, no negative suction & less power consumption.

Add to this there is no noise pollution, no wastage of surface space, pump is not necessary & last but not the least it also acts as a protection against possible theft.

• A tip of caution for using submersible pumps
The pumps must be fully submerged into the water, as it actually helps to cool the motor of the slurry pump. However, if the pump is used out of water, it may lead to overheating & burning.

In the end, if you are planning to go for a pump, its always advisable to check whether you have an option in submersible pumps & chose are the type that suits your purpose, keep these advantages in mind and go ahead about it. You should however, make sure that the quality you are attaining is great and reliable. For our product details get in touch at 99819 92838.

Friday 30 March 2018

Desalination - Understanding the Concept

Being a leading Indian manufacturer of submersible pumps, Darling Pumps has been the Chief architect of submersible pump revolution in India. Our new & innovative product line has set a benchmark for other to follow and has thus always kept us one step ahead of the market. We offer a wide range of sewage, slurry and dewatering submersible pumps in India and countries abroad. To add to our innovative product line, we have introduced pumps for desalination. A unique concept, desalination is getting a lot of attention these days.
In this blog, we will be discussing about the process of desalination. Moreover, we will also be discussing the various methods that one can use to execute the process of desalination. For starters let’s take a look at what the whole process of desalination is all about.

The Process of Desalination
The process of desalination is used in order to extract mineral components from saline water. Put in simple words, desalination means the removal of  minerals and salts from a target substance.
When water is to be produced for human consumption or irrigation then the saltwater is desalinated for the same. Salt is one of the by-products of desalination. When we talk about the modern interest in the process of desalination, it is majorly focused on a cost-effective way to provide fresh water for the use of humans. The process of desalination is also used on many submarines as well as seagoing ships. It becomes one of the few rainfall-independent water sources.

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The water obtained after the process of desalination is generally more healthy than the water that is obtained from groundwater and rivers. Moreover, it is found that there is much less salt as well as limescale in the desalinated water.
There are various methods attached to the execution of the process of desalination. Each method has its own advantages as well as disadvantages. Let’s have a look at the list of these methods -
  • Vacuum distillation
  • Multi-stage flash distillation
  • Multiple effect distillation
  • Vapor-compression distillation
  • Reverse osmosis
  • Freeze-thaw
  • Solar evaporation
  • Electrodialysis reversal
  • Membrane distillation
  • Wave-powered desalination
Every seawater desalination method consumes different amounts of energy. This includes thermal energy as well as electrical energy.
When we think about the costs that go in while executing the process of desalination, there are various factors that decide this. A few of these factors include the type of facility, capacity, feed water, and location. On top of these factors some other are energy, financing, labor, as well as concentrate disposal.
Another challenging factor in desalination is pumping process. Not all pumps & metals which are available in market can work in sea water. Darling Pumps over the years have successfully supplied pumps for many sea water related applications & pumping. The metal used here is exclusive & very reliable.
Just for your information, for desalination, type of pumps is less relevant compared to the MOC & its reliability. Darling Pumps is proud to offer pumps for desalination. We  have offered pumps for Sea water in Duplex or SS316L series. For more information on desalination, get in touch with us at +91 99819 92833.

Thursday 22 March 2018

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. 

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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.