What will happen if the speed of the centrifugal pump doubles, keeping other parameters the same?

When we evaluate the performance of centrifugal pumps, we determine the value of pump speed, head, and the required flow of liquid. It is important for the pump’s manufacturer to state the above information clearly about a pump so that customers can decide which centrifugal motor to buy.

But, there’s always a revolting fact regarding the speed of the centrifugal pump in a submersible motor. What happens if we increase the speed or rather double it, keeping the other parameters constant? This is what will happen:

NPSHQ will probably be exceeded, for which any submersible pump is designed. Multiple issues will emerge with cavitations in the suction eye of the impeller. Here, cavitation is a severe condition where the central area of the impeller experiences a very low pressure that could be dangerous because it causes water to boil. When this boiled water starts exiting the suction of the eye, it causes damage to the impeller. In no time, the impeller will be forced to experience a lot of damage and might even get destroyed completely.

Hence, increasing the speed of water pumps or doubling it without a proper understanding of the consequences that it will have on the pressure and flow of the pump can lead to a huge failure of the entire system. Even some of the best pumps in the market are bought because of their lower speed because they ensure lower power consumption and hence a win-win situation for everybody.

Vijay Engineering and Machinery Company, one of the best pump dealers in Mumbai, provides a wide range of Kirloskar pumps like submersible pumps, water pumps, submersible motors, etc. Click here to know more about the products and services we provide

Power Cuts: Are Solar Panels Efficient Enough To Handle Them?

Solar energy is the best alternative energy in our homes. It is efficient, clean as well as abundant, and it is not used up. However, its only drawback is the reduction of efficiency during rainy and cloudy days. Because of its increased demand, there are a lot of Doing It Yourself at-home solar energy systems in the market. This makes it easy for you to generate energy to power your home at your property.

However, before you can decide on buying the product, you should do some initial evaluations. Home solar energy systems will require investments, and you will wish to recoup your investment within an affordable time frame. During the solar panel installation period, you do not need to move your family out to another house, and this is likely to cause you extra costs required for dismantling and rebuilding the system.

Therefore when it comes to installing the solar panel, there are some mysteries involved. Like other things, the easiest method will arise from doing some research to get the best recommendations tools as well as products. Then after getting that, you can get down into putting down your effort.

Solar panels have some problematic tasks in accomplishing and installing the panels around your home. However, the solar panels are great to help in reducing the monthly electricity expenses significantly. To some extent they can eliminate the costs wholly based on the size of the solar panel selected and the amount of power you require and use at home.

Today, everybody who does not live under rocks or in a cave understands that solar panel has overtaken the leaps as well as bounds for many months. On the contrary, the fact remains this has been happening for the longest time possible. This means that the solar, panel still plays a significant role in increasing energy in the future and reducing the power consumption expenses.

The costs of remaining dependent fossil fuels instead of that of renewable had started to increase. However, sun and wind still can provide the ever-increasing portion of day to day energy for the consumers, especially those who are vulnerable to electricity.

Solar panel, regardless of one or dozens, they reduce the cost of electricity significantly. It, however, does not matter whether the solar panels are manufactured commercially or made for homeowner use.

With the availability of many solar panels suppliers, and the decreasing of the prices of the solar panel. Solar power has started to make sense each day. It is not only the electricity prices that should drive you to the use of solar panels. It is with no doubt that lowering your monthly electricity bill is a great attraction to more benefits that accrue. This is because of the ongoing deployment and use of solar power.

Creating your solar panels is very easy, and it is during this time that you will realize the best cost-saving strategy. It is not only the costs of solar panels installation that are low compared to that of the commercial model, but you can also install one as soon as possible while adding others at the time when your family budget allows you to do so. Once your first panel starts working, you will start seeing the saving that it brings to you through reduced electricity bills

Finally, installing a solar panel at your home is the best way of reducing the monthly electricity bill expenses. Therefore it is worth your money. Although it may be hard to know which one is suitable for your home, you should consult experts to ensure you select the best solar panel since the set up will last for many years.

How To Decide – Reciprocating Compressor or Screw Air Compressor

Elgi Screw Compressor & Reciprocating Compressor

In recent times, more and more industries rely on compressed air and are, sometimes, called the 4th utility of any industry. When looking for an air compressor, there are different types of compressor like Reciprocating compressor, Vane Compressor, Screw Air Compressor, Diaphragm Compressor, Centrifugal Compressor, and so much more. We will talk about the 2 popular types of compressor, namely the reciprocating and screw air compressor (also known as the rotary compressor). Users often get confused between these 2 variants during purchase; however, in order to make the correct decision, you will need to understand how they operate.

Reciprocating Compressor

In a reciprocating compressor, air is taken into a cylinder and then compressed to a higher pressure with a piston using reciprocating motion (much like an engine). Piston compressors are the most common type of compressor used in most industries because of their lower capital investment. These compressors, however, make a lot of noise and vibration. As the compressor operates on reciprocating motion, there is pulsating air produced, which causes the inlet and outlet valve blades to open and close multiple times a second, making higher noise levels. Most air compressors manufacturers provide an allowable duty cycle of 60%-70%. That said, a general recommendation is that when your compressor is idle for more than 50% of the time, it is best to go for a reciprocating compressor. Piston compressors are usually oversized to allow some idle time as they operate at higher temperatures. BAC Reciprocating Compressor ranges from 0.5HP to 20HP and are manufactured to industry standards to withstand above 70% duty cycle.

Screw Air Compressor

Screw air compressor consists of 2 rotors, rotating in the opposite direction, compressing air between the lobes to a higher pressure. Since the rotors are rotating and not reciprocating, there is minimal vibration, wear, and downtime compared to a reciprocating compressor. In a reciprocating compressor, there is a high friction loss between the piston rings and cylinder compared to a screw compressor where their rotors are non-contact. The air produced is continuous and prevents the inlet and outlet valves opening and closing continuously, thereby reducing noise to significantly lower levels. Screw compressors are especially good in medium-scale and large-scale industries where there is a continuous requirement of air. These compressors do not prefer idle time and long periods of idle time, which sometimes causes issues. Rotary Screw compressor requires a higher capital investment, but provides better efficiency and faster ROI. There are 2 types of screw air compressor fixed speed and variable speed compressors, each having its own advantages. BAC’s screw compressors currently range from 7.5 hp to 60 hp, and also provide custom combinations for getting the best out of your investment.

If you are in search for a reliable and professional supplier of Reciprocating or Screw Compressors, you can contact Vijay Engineering And Machinery Company – the Authorised Distributors of Elgi Compressors and Spare Parts.

What makes a fire pump different from other kinds of pumps?

Are you also amongst the ones who don’t find any difference between fire pumps and other pumps, primarily domestic water pumps?  Both pump water, don’t they? But they are as different as the scenarios they are employed in. And as the material and construction of fire pumps is different, they are far more costly than ordinary pumps.

So, before you go switching your fire pumps with domestic water pumps to control the cost, let’s take a look at the differences between the two:

  1. Corrosion-resistant- As we mentioned, both pumps are used in different situations wherein the fire pump is an emergency pump, rarely used in normal times. But all the time it is not in use, the fire pump still needs to be intact for whenever it is needed. So, a fire pump is constructed, keeping in mind to keep its corrosion resistance factor high- much more than that of an ordinary water pump. Like, water pumps have a cast iron material used in the construction of their impeller, compared to the pure copper or stainless steel impeller of fire pumps.  
  2. Fire pumps have to be fire-resistant- No matter how similar their applications might look, it is important for a fire pump to be fire resistant- something a water pump doesn’t need. A fire pump is not merely supplying water, it is used douse fires so, the material of the pump has to be metal and the surface of fire pump needs to a red paint coating, which not only stops it from getting rust but also fire-proofs it.
  3. High-temperature resistance- Fire pumps have to be high-temperature resistant as they may have to counter scorching heat in the event of a fire hazard, something ordinary pumps don’t have.  

Now that we have cleared the air of any lingering doubts and you are sure without a doubt that it is a fire pump you need, ensure that you approach the best pump dealers in Mumbai, Vijay Engineering and Machinery Company. Be it centrifugal pumps or submersible motors, VEMC provides only the best and proves that it is one of the renowned pump dealers in India and the trustworthy distributors of the reliable Kirloskar pumps. Whether it is the best pump dealers in Navi Mumbai or topping the list of pump dealers in Vashi, VEMC has never failed to excel. Check out our website for more!

Factors to Consider When Choosing Gate Valves

Gate is one of the most used valves when opening and closing the flow of liquid from a straight medium line. The gate valves are usually found in different places. Instantly they are found in the irrigation areas and can be used in different plantation areas in regulating various fluids.

Valves are essential components used in the pumping systems in diverse industries. Some of the main functions of the valves is preventing backflows, regulating the direction of flow as well as regulating the system pressure, the UL /FM approved gate valves may sometimes be dismissed as secondary considerations while designing different faucets at your home. This is necessary because they increase the performance of the systems minding their efficiency, longevity, and safety. This article, therefore, will discuss the critical factors you should ‘put into consideration while selecting the gate valves.

The type of valve used:

The water faucets at home are mostly made of valves with handles used in regulating the flow in it. The valve, therefore, should be designed with a gate as well as an actuator. The actuator is usually made of level, electric motor or a handwheel. Each of these creates the anticipation of regulating the performance that makes the valve useful in given conditions. Therefore, the gate valve is regarded as a piece of metal that determines the passing and non-passing of the flow.

Actuation Method

It is necessary to consider the operation of the valve. Therefore you need to determine if the valve is manually operated by hand or it will require an actuator for turning it on and off automatically. If you settle on the latter, then you decided on the unit that will be used if it will require, pneumatic, or hydraulic actuator. There are other several Gate Valves Ul/Fm Approved and used in different industries with electric motors. Therefore, it is necessary to determine the functionality of the gate valve.

Maintenance Requirements

Maintenance should be done regularly; the gate valve requires maintenance to ensure they do not clog. Hence, this is the simplest method of providing the gate valves to serve you for a long time. The gate valves are designed in a way that makes them easy to clean without having to disconnect the end cups from the pipe. This, therefore, prevents the line from shutting done during the maintenance process. The most common uses valve the wedge valves that are parallel, the valves are utilized highly because they easily overcome the contraction and expansions in the climate that fluctuates regularly.

Application Conditions

Selecting the right gate valve for application in the essential factor when choosing a correct valve for your application purpose. When the valve is not appropriately sized, it may lead to operational issues within the valve or in the system. This also determines the temperature, flow rate and pressure that the valve operates with. However, metal valves in most sentences withstand the high temperatures as well as the pressures as compared to the plastic ones.

Valve Function

Before installing the valve gate, always consider determining the need of the valve. They are typically used in on and off controls, diverting as well as media mixing. Also, consider if your valve will be open or closed. When you want to increase the life expectancy, you should consider the order value in the orientation as well as the changes on different valves.

Finally, there are diverse factors involves when selecting the right UL /FM approved gate valves for your application. It is essential to seek the help of qualified engineers to help in analyzing the critical factors as well as in understanding the application requirements. This will; be essential in finding the right gate valve for your application.