How are the centrifugal pumps important for various machines

The Kirloskar centrifugal pumps – and all other centrifugal pumps for that matter – are a kind of a dynamic axisymmetric turbomachine that work-absorbing. Industries use them to move fluids. In this case, they get help by changing the rotating kinetic energy to hydrodynamic energy that you need for the flow of the fluids. This rotational energy comes from an electric motor or an engine. The fluid, in this case, enters the impeller that is present close to the turning axis. Before this, it flows outward in a centrifugal motion. It flows into the volute chamber that is also referred to as diffuser. Industries use these pumps in areas such as water, petroleum, sewage, and petrochemical pumping. 

How do these pumps work?

As the centrifugal pumps distributors would tell you, these pumps work like most other pumps out there. This is in the sense that they also convert rotational energy, which is coming from the motors to the energy that you get in moving fluids. In this case, a part of the fluid goes into the kinetic energy that is contained in the fluids. This fluid enters via the eye of a particular casing. It normally gets caught up in the impeller blades.  After this, the fluid gets twirled in a vague and outward manner.   

Vertical centrifugal pumps 

You can always buy a centrifugal water pump in India from the top brands such as Kirloskar. The vertical centrifugal pumps happen to be known as cantilever pumps as well. They are built in such a way that they contain a shaft that is unique to them. They also have a bearing support configuration. It is this particular design that permits the volute to hang in on the sump even as the bearings are placed externally. This kind of pump does not use any stuffing box to seal the shaft. It can use throttle bushing though.

Froth pumps

A centrifugal pump in India can generate the froth and take care of the same as well. These pumps come in handy when it comes to separating rich minerals like bitumen from sand as well as clays. These pumps normally contain air that would block the traditional pumps. This can lead to significant loss of the prime as well. When these pumps are used in the paper and pulp industry the impeller are drilled with holes. In this case, the air goes out to the back of the impeller in question. 

Multistage centrifugal pumps

You also get Kirloskar centrifugal pumps that can be regarded as multistage centrifugal ones. The suppliers of these pumps design them in such a way that they have at least 2 impellers. These can be put over on the same shaft or they may be mounted on separate shafts as well. In the journey, in this case, the fluid is directed towards the center. In this case, it makes its way towards the discharge. This happens over the outer diameter. In the case of the outlets with higher pressure, the impellers can get connected in the series. In case of higher flow outputs, these impellers can get connected in parallel.

What You Should Know About the Lifespan of a Solar Panel

Solar Panel Life

Spoiler alert: It’s good news.
One of the countless benefits of installing solar PV Panels is that once invested in, they last for 20-30 years with minimal maintenance. But before you invest in them, it is important for you to know everything about the lifespan of this source of Renewable Energy.

What does ‘lifespan’ refer to?
When we say the Life of Renewable Energy, in this case, is 30 years, it doesn’t mean that your solar panel will stop working after 30 years. It simply means that it won’t function at optimum levels. The panel will still continue to work for many more years.

Solar panel degradation rate
So now we know that a panel may not be 100% efficient after a few decades. But at what rate does it degrade? That depends on the quality of the panel you choose. On average, Solar PV Panels degrade at a rate of 0.5-0.8% per year. This means that if a panel is operating at 100% efficiency, this will drop to 99.5% or 99.2% respectively after a year. This isn’t a cause for worry because your panel will still work fairly efficiently for decades. At this slow a rate of degradation, you’re in for many decades of hassle-free Renewable Energy generation.

We, at VEMC, are firm believers of the fact that our clients should have access to all information related to any product they decide to allocate their money to. Being a leading EPC Consultant in Mumbai, we provide you with extensive knowledge for informed decision-making. Want to know more about solar energy? Feel free to contact us!

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How to Determine if Your Solar Panel Needs Repairs

Vijay Engineering And Machinery Company - Solar Panels

Repairs? You may be surprised. Solar panels are known to be very low maintenance, however, it’s always prudent to check up on them at least once in six months to ensure that nothing stands in the way of efficient renewable energy generation.

What are some signs you need solar repairs?
Dirt buildup. This is the simplest thing to look for. Since your panel is outdoors, it is subjected to dust, debris and other pollutants. These could obstruct sunlight reaching your panel, and in some cases, may also cause damage to the panel if not dealt with properly.
Damaged glass. The glass used on PV Panels is built to withstand the harshest of conditions. However, in rare cases, as a result of heavy objects falling on your panel, you may notice cracks on inspection. Here, it’s crucial to get them fixed to avoid further issues.
Damaged metal parts. The panel is supported by a rack and several smaller parts that hold it in place. While these are designed to last for years, over time, they may begin wearing out. If you notice rust on any portion of the rack, your panel needs immediate repairs.

Leave the repairs to the experts
Solar panel maintenance should only be carried out by experts in order to avoid mishaps. Vijay Engineering and Machinery Company is a trusted EPC Consultant in Maharashtra. Our Annual Maintenance Contracts (click here to know more) give our clients a hassle-free, streamlined experience when it comes to owning a Solar Panel in Maharashtra, whether it’s a Commercial Solar Panel or a Residential Solar Panel.
Notice anything strange about your PV Panels? Click here to contact us and we’ll get right to fixing it!

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7 Ways in Which Solar Energy Benefits Us

We’re always told solar energy, being Renewable Energy, is good for us. But how?
As Global Warming is on the rise, the Earth is exposed to more sunlight and heat. PV Panels make use of this adversity to generate electricity. Apart from this, there are many other benefits to using solar energy.

1) Saves Oil: In many places, crude oil serves as the main source of energy. With rising oil prices, solar energy can be easier on the pocket in addition to being a greener energy source.
2) Creates Employment: The installation, maintenance, commissioning, etc. of PV Panels, Batteries, etc. can generate a lot of employment.
3) Equivalent to Taking Cars Off the Roads: Fewer cars lead to a fall in greenhouse gas emissions. Similarly, using a Residential Solar Panel reduces demand for Non-Renewable Energy sources that emit greenhouse gases. As a result of this, the emission of harmful gases like carbon dioxide, carbon monoxide, etc. is significantly reduced because solar PV systems don’t release any greenhouse gases.
4) Equivalent to Planting Trees: Planting trees helps absorb excess carbon dioxide from the atmosphere. Solar energy, on the other hand, prevents carbon emissions by substituting Non-Renewable Energy. Hence, the two have the same effect.
5) Reduces Health & Environmental Damages: Solar energy is clean energy and doesn’t produce any harmful by-products. This makes it a safe form of electricity.
6) Saves Water: Coal power plants use vast amounts of water to process and clean the fuel. Solar energy generation, meanwhile, doesn’t need any water since the “fuel” is sunlight.
7) Reduces CO2 Emission: Since solar power generation doesn’t burn any carbon-based fuels for energy, it doesn’t emit any carbon dioxide.

Want to get your Solar Panel in Maharashtra? Contact us at VEMC, a leading EPC Consultant in Maharashtra.

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Basic Understanding Of Industrial Water Pumps

The thing with fire fighting pump set is that they are basically meant to work at one point only. This means that such a pump has only one point of flow and head. This can be described as a hydraulic condition. It is also referred to as BEP (Best Efficiency Point) as well as the best operating point. It may have a published set of curves. However, as experts would tell you, this is merely a commercial compromise. For most end-users, the process of getting a pump built and designed to suit their special hydraulic conditions would be really expensive.

Paying attention to the published curves of the pump

Even if you have bought Kirloskar water pumps India this is something that you must do. The pump performance covers of the makers are based on clear water. The approximate mark here is 65 F. This is unless something else has been stated by the makers. You can be sure that they would not be corrected with respect to fluid viscosity. Even when they have started a horsepower it may or may not be corrected for specific viscosity and gravity.

If the published pump curve stops it is for some good reason

If centrifugal pump distributors have published a particular pump curve and if it stops at some point of the head and flow there is definitely a good reason for the same. You should never operate your pump at the end of the curve. If the pump was capable of producing a better performance the makers would have extended the curve themselves. If you operate it till the end of the performance curve or near you can be sure you would be facing issues in the future.

Pumps can be stupid

As the best water pump dealers in Thane would tell you, these pumps can be rather stupid. You need to understand that a centrifugal pump is basically a machine. It has a certain set of fluid properties, operating speed, and impeller geometry. It is because of these characteristics that it would react a certain way to the system that has been installed. The flow and head point of the pump will be a crossing point of its system curve and performance curve. The system curve would basically dictate where these pumps would operate. 

You have to understand the system curve

The system curve can be said to be representative of all the friction as well as the pressure and static head that has been baked into the same.  

A fire-fighting pump set will also have a velocity head. However, under normal circumstances, it would be so small that you would not really be concerned about it.


Your pump would never suck fluids. This is a misunderstanding that is surprisingly common. You need to understand that there has to be another energy source that would be needed in order for the liquid to get to the pump. Normally, the best examples of such sources of energy are atmospheric pressure and gravity.

Choosing Right Pump For Fire Hydrant And Sprinkler Application

Metro cities are getting filled with people seeking to make their dream come true and in an effort to do so, few succeed and looking at their success stories more people are coming towards metros, with increase in the population there is demand for housing. Metros like Mumbai have limitation in growing horizontally which leads it to the vertical expansion. It has become common to see 50 to 60 floor building and few of them touching almost 100 floors. This means developers in cities like Mumbai are focused on effective use of the space they have and don’t want to waste any of it.

This shift can also be seen in the pumping industry, where most of the builders used to procure standard horizontal end suction pump or split case pump are now shifting to Vertical pumps which consumes less space compared to horizontal pumps.

There are two major applications in Building and construction sector.

  1. Fire Fighting pumps
  2. PHE pumps (Public Health Engineering)

In Fire Fighting application the flow rate usually are 1620 LPM, 2400 LPM, 2800 LPM, 2850 LPM & 3200 LPM and Pump Head could be anything above 70 Meter

In PHE the flow rates are not as high as fire fighting application and the pumps required have to be of high efficiency as they are one of the continuously running equipments in any building. The requirement for compact size and high efficiency than single stage end section pumps for the same head and flow, Inline pumps are in demand for PHE application.

To cater High flow rate at high head we use pumps which are manufactured by casting process which offers extremely good pressure handling capability for the flows of fire fighting application, PHE pumps are of low flow which can be catered by pumps which are made from sheet metal. These sheet metal pumps are mostly Inline type.

While choosing pumps for Fire Fighting Hydrant & sprinkler application, people tend to confuse vertical multistage pumps with Vertical inline pumps but they are completely different and as per IS 12496 standards Inline pumps are not suitable for Fire Application except jockey pump application where the flow rate is 3% to 7% of total Flow.

Vijay Engineering and Machinery Company is a channel partner with Kirloskar brothers Ltd. From 70 years for supply of all pumping solutions and has evolved into an electro mechanical solution provider by being the most sought after “Endearing partner”. VEMC is known to provide unlimited technical support and engineering know how about the pumps and projects executed.