VEMC-Blogs

Author: vemcoblogs

What Size of Industrial Air Compressor do I Need?

by vemcoblogs -

One of the most challenging decisions while buying an air compressor is sizing it. This is necessary for maximum efficiency and involves a number of parameters such as CFM, pressure, application, layout, etc. While sizing an air compressor may seem simple on the surface, it is determined by a host of factors to ensure optimum performance. As we are one of the leading Air Compressor Dealers in Mumbai.

In This Article, We Can Take You Through All Of These That Shape The Sizing Decision Of Your Industrial Air Compressor:

Size of your project

Quite simply, bigger the size, more will be the power generated. Whether you need your air compressor for heavy-duty construction work or office work will be the primary determinant of your sizing decision. Besides, if you need a constant flow, it will be better to invest in a large-sized air compressor as small compressors are not able to generate it.

Your tools and applications

Next, you’ll have to consider the work you’re going to perform with your air compressor. Air compressors have wide-ranging applications from drilling to sand-blasting. Choosing the right size for the right task is critical to ensure effectiveness. All tools have a required flow or CFM which should be matched with that generated by your air compressor. An ELGi Reciprocating Compressor is a great option for both light and heavy-duty use.

Your source of power

A standard domestic voltage should be enough for most compressors to work. But for larger industrial compressors, a 240-volt source is necessary. Where electricity isn’t available, compressors can also be powered with petrol. Since your source of power acts as an important constraint in the functioning of your compressor, take it into serious consideration before choosing one.

Space available

If you’re trying to buy an air compressor for your garage startup, there’s very little hope that a large industrial compressor will fit in there. Given the paucity of space in the city, most air compressor dealers in Mumbai will emphasize on the space constraint as the number one factor to size your compressor. Besides, if you’re going to move the compressor frequently, a smaller and lighter one will always be the better choice to avoid inflating your carriage and labour bills.

Size of the tank

The size of the tank is the most important factor that decides the size of an air compressor. This is significant because it determines how long you use the compressor before it needs to refill the air tank. If your tools and applications require a constant flow, a bigger air compressor is the right choice. Smaller tools like nail gun require short bursts of compressed air that don’t need a large tank. But the motor will have to switch on and off, which can cause wear and tear, and affect the lifespan of your compressor overall.

Conclusion 

Our expertise and experience make us one of the topmost air compressor dealers in Mumbai. If you’re specially looking for ELGi Air Compressor Dealers in Mumbai, we are the perfect choice for you. Dial us at 022 43436655 or email us at marketing@vemc.co.in to get in touch today!

What’s The Difference: Valves – Ball, Gate, And Globe Valve?

by vemcoblogs -

Some of the most important aspects of a fluid management system are controlling, regulating, and directing the fluid. This is made possible by devices known as valves. Both domestic and industrial valves are used to direct the flow, shut access, adjust pressure and prevent back-flow in the pipes. These are especially useful when a section of the piping is undergoing repair or maintenance. Each valve however is uniquely designed to meet specific plumbing needs. As dealers of some of the best industrial water pumps in Mumbai, let us explain the difference between a Ball, Gate, and Globe Valve.

Ball valve:

A ball valve has a hollow ball in the center through which the liquid passes. As long as the hollow ball is in line with the direction of flow of the liquid, it flows with ease. But as soon as the hollow is turned perpendicular to the direction of the flow, it completely stops. Even turning the ball using a long and easy-to-use handle above by 1/4 is enough to cut off the flow and immediately create a powerful watertight seal inside. These valves are easy to use, durable, reliable, and especially useful in times of emergency. But besides turning off the flow completely, a ball valve can also divert or alter the flow of the liquid through multiple ports.

Globe valve:

A globe valve is especially useful to modulate or throttle the flow of the liquid. Its spherical body has a stationary ring seat. On turning the knob, a disc-like device is released and raised upwards from the ring seat. The Z-shaped passage opened below allows the liquid to pass through the valve. You can turn the handle all the way up or only partially, depending on how much liquid you wish you let pass. They, therefore, function pretty much like kitchen faucets or hose bibs. Flow modulation and throttling is the biggest advantage of a globe valve as compared to all the others, which are mostly used to simply turn the flow on or off.

Gate valve:

Also known as a shut-off valve, a gate valve works by lowering a wedge-shaped metal gate to halt the flow. The gate is lowered or raised by twisting a wheel-shaped knob present on top of the valve. The greatest benefit of a gate valve is the gradual stoppage of flow rather than causing a sudden halt, also known as a “water hammer”. A water hammer causes the liquid to suddenly change direction or abruptly stop. These create pressure waves and loud banging noises inside the pipe. A gate valve is only useful to open or shut the flow of liquids rather than throttling the flow like a globe valve. A gate valve is best used in straight flow lines with minimal disruptions, restrictions, or diversions. You can actually get a physical demonstration of these valves from any dealer of industrial water pumps in Mumbai.

For more information on which industrial valves suit you the best, speak to our experts at 022 43436655 or email us at marketing@vemc.co.in. VEMC is an authorized Kirloskar valve dealer with a proven record of excellent service and quality products in mechanical engineering and other allied products like Kirloskar valves, pumps, motors, and compressors. We are the leading dealers of industrial water pumps in Mumbai.

Performance Of Solar Panels In Different Seasons

by vemcoblogs -

Your solar panels work best when the sun is shining the brightest, making summer the favorite season. But this doesn’t mean you cannot optimize the generation during non-peak months. By being aware of the factors affecting energy generation, you should be able to boost your solar panel efficiency even during winter. This requires some tweaks in your solar panel installation.

Factors affecting solar energy production:

Temperature:

If your solar panels get too heated up, the photons will dislodge too many electrons from the atoms and get them all ‘excited’. This reduces your voltage and hence also your electricity generation. Overheating clearly is bad for your solar panel efficiency. With every degree above 25 degrees Celsius, the efficiency will drop by about 0.25%. To optimize output, try to maintain the temperature at 25 degrees Celsius.

Shading:

If a shade falls on just one part of your solar panel installation, you might think that the rest of the panel will work fine and still generate electricity. But that’s not how they work. Cells are connected in series and any obstruction in any part of the panel will affect the flow of electricity overall. So before installing solar panels, top solar companies in Mumbai and beyond will try to avoid the shaded areas as much as possible.

Rooftop (terrace) orientation:

To get maximum exposure to direct sunlight, your solar panels must be mounted at the perfect angle. Since the sun changes its position throughout the day, this angle must change as well. This however can’t be done manually and requires automatic technologies that the hi-tech solar EPC companies in Mumbai and the rest of the country are offering these days.

Cleanliness of solar panels:

Dust, dirt, or water droplets can block the exposure of the solar panel surface to sunlight. This can adversely affect solar panel efficiency. Thus solar panels must be wiped clean at least once a month to ensure maximum output.

Location:

Solar panel installation in Mumbai will be different from that in Srinagar or Shimla. The insolation or the amount of energy falling on every cm2 per minute will vary from one location to another. This naturally will have an impact on the energy generated by the solar panels in different locations.

Effects of Rain, Storm, and Cold Weather on Solar Panels:

A high-quality solar panel installation can withstand extreme weather like monsoon rains and storms. The glass layering on the panel doesn’t let the water stand and also protects the solar panels against too much surface heating. However, lightning strikes can damage your panels due to a sudden rise in voltage. Winters are a time when the electricity generation is somewhat reduced, but you can nonetheless use battery backups to store the electricity.

The Importance of Annual Energy Production:

When installing solar panels at home or at your business, taking the annual energy production into consideration is important. Energy production varies from season to season and month to month. So while some days, your panels may not produce enough electricity owing to seasonal or weather-related factors, the overall annual production must be taken into account, while evaluating solar as an alternative energy source.

Need more information about the feasibility of installing solar panels in your facility? Give us a call at 022 43436655 or email us at marketing@vemc.co.in. VEMCO is the leading name when it comes to solar panel installation, solar EPC, and maintenance services.

VEMC – A Leading Kirloskar Fire Fighting Pumps Solutions Provider

by vemcoblogs -

One of the most trusted names in the field of electromechanical engineering products, allied equipment, and services, Vijay Engineering and Machinery Company, or VEMC for short today is also a leading provider of firefighting pumps. We are in fact the leading Kirloskar fire-fighting pump dealers. Fire pumps are basically centrifugal pumps used to pump water at high volumes and pressure in a building on fire. In this blog, we take you through VEMC’s journey in the pumping industry, its pioneering work, and a major project accomplished successfully.

Journey of VEMC in the pump industry:

Nearly 70 years ago, VEMC started its operations to provide solutions in the field of fluid management. The company’s engineers also decided to provide allied services apart from just the tangible pumping solutions. An array of fluid engineering solutions was provided especially for industrial and infrastructure use.

Within a very short span of time, the company established a solid reputation and began receiving contracts and projects from diverse sectors. At the heart of the success lied the technical robustness of its products as well as the economic pricing well-suited for the Indian market. This helped VEMC outdo most of its competitors and emerge as a force to reckon with. In 2008, VEMC was certified with ISO 9001 as a recognition of the high-quality standard of its products. This of course included our activity as the leading Kirloskar fire-fighting pump dealers.

What makes VEMC a pioneer in firefighting pump solutions?

VEMC makes its fire fighting pumps meet the stringent standards and specifications of the National Fire Protection Association of the US, while at the same time trying its best to ensure cost-effectiveness. These standards make VEMC fire pumps one of the most reliable choices across industries. No wonder VEMC today caters to an array of sectors like ports and airports, oil and gas platforms, warehouses, manufacturing, and the chemical industry, etc. Besides providing the products, VEMC also helps in the installation and maintenance of the fire pumps.

Types of fire fighting pumps we supply:

VEMC offers a wide range of firefighting pumps to its diverse client base with varying requirements. These are:

  • Kirloskar Submersible Pumps
  • Horizontal split casing pumps
  • Containerized Fire Fighting Pump Set
  • FM approved UL listed Fire Fighting Set
  • Multi-stage vertical pumps
  • Multistage horizontal pumps
  • UL FM-approved gate valves
  • HYPN Systems
  • Industrial Pumps
  • Rerolling Mill Motors

One Avighna Park –– A major project in fire safety systems:

VEMC provided fire safety systems to One Avighna Park –– a luxurious Mumbai high-rise located in Worli. The project went on to bag 40 national as well as international awards for excellence and exclusivity. VEMC supplied the client with a fire-fighting control panel that put all the worries of the client at rest. The entire system is automatic and activated by timers and auxiliary contacts. As soon as the fire pump starts, an alarm goes off signaling building evacuation. One of the major fire safety projects in VEMC’s journey, One Avighna Park symbolizes our excellence in the field of automatic fire-safety systems.

For more details on Kirloskar fire fighting pumps or any other products and services, speak to our experts at 022 43436655 or email us at marketing@vemc.co.in. We have authorized Kirloskar distributors based in Mumbai. Being the top Kirloskar fire-fighting pump dealers, we pride ourselves on providing the best-in-class fire pumps, allied products, and services to our clients.

What Are NPSH And Pump Operating Regions (POR) In A Pump?

by vemcoblogs -

The Net Positive Suction Head (NPSH) and Pump Operating Regions (POR) are two of the most commonly used technical terms in the pumping industry. As the leading industrial water pump suppliers in Mumbai, we can help you gain a deeper understanding of these technicalities, this article is for you.

Pressure and NPSH Terminology:

As the industrial water pump suppliers in Mumbai and beyond will explain to you, energy is described as the total head in meters or feet added. Head and pressure have a direct relationship. The pressure units used are PSIG (pound-force per square inch gauge). A pressure of 10 PSIG indicates that the units are “gauge pressure” that is, in addition to the pressure exerted by the atmosphere around us.

The NPSH available (NPSHA) stands for the total head at a particular point in the system, in feet or meters, greater than the vapor pressure of a liquid at operating temperature. It essentially indicates the relative closeness of a liquid to vaporizing.

Why it is important to operate a pump within its POR and with an adequate NPSH margin?

NPSHA must be evaluated at the pump suction. As soon as the liquid enters the impeller, the impeller eye has a point of the reduced head before the energy imparted by the impeller boosts the head. Due to the reduction in heat in the impeller eye, the fluid may fall below the vapor pressure, causing its vaporization and then suddenly condensing back to liquid form in a higher-pressure region of the impeller. The pump performance can get reduced due to the formation of vapor bubbles in the impeller. But the repeated collapse of the bubbles also causes erosion of the impeller, called “cavitation”. To prevent this and make your centrifugal pump as reliable as possible, it is necessary that a proper margin for NPSH exists.

Operating regions:

Pump impellers operate at a particular flow rate where there are zero angles of incidence between the inlet impeller vane and the approaching liquid. This is known as shock less entry flow. The flow of shock less entry is usually near the Best Efficiency Point (BEP) of the pump. When the flow rate is higher or lower relative to the BEP, there could be a mismatch between the approaching liquid and the impeller vane inlet. A greater angle of incidence can increase cavitation. The pump must therefore operate as close to the BEP as possible.

Thus there are two important regions of pump operations –– Preferred Operating Region (POR) and Allowable Operating Region (AOR). POR is the range of flow on either side of the BEP within which the hydraulic efficiency and reliability of the pump are not significantly affected. The AOR is a larger range of flow beyond the POR within which the service life of the pump is acceptable.

When pumps are operated outside the POR, the flow is no longer uniform causing localized cavitation. The AOR of the pump is affected by hydraulic loads, vibration, temperature rise, power limits, liquid velocity, NPSH margin, pump size, the potential for clogging, etc. Your pump manufacturer or dealer can help determine this region.

For any further information on centrifugal pumps, and technicalities like NPSH, POR, and AOR, feel free to get in touch with VEMC by calling us at 022 43436655 or mailing us at marketing@vemc.co.in. VEMC is an authorized channel partner of KBL since the 1950s. We are the top industrial water pump suppliers in Mumbai.

Does Your Pump Need Replacement? Here Are A Few Signs To Look Out For

by vemcoblogs -

The life expectancy of pumps on average is around 10 years. But sometimes they can fail sooner, or exhibit some symptoms which point toward the need for urgent pump replacement. Outdated, inefficient, and malfunctioning centrifugal pumps can impact your business profitability and raise your operational costs significantly. Being the leading industrial water pump dealers in Mumbai, we can share our vast experience to explain when your pump is worn out and needs replacement.

Why does a pump need replacement?

As much as possible, try to repair your pumps to get their aberrations corrected. But after one point, the repairs may no longer work, and just running the outdated pump can cost you money. As a thumb-rule, “if it costs you more than one-half the cost of a total replacement to repair, just replace it”. Quite clearly, the cost aspect is most dominant when it comes to taking the decision between pump repair or pump replacement. Here however are some signs that must send you out for pump buying.

Electrical winding system:

Overheating or failure can be caused due to excessively low voltage, and the problem of lack of continuity in wiring or windings can emerge from excessively high voltage. Your motor may need replacement if its winding system is displaying any of these issues:

  • Burned windings from running on single phase
  • Shorted turns are caused by high-voltage spikes, aged insulation, overheated winding, etc.
  • Open winding due to severe overloads, faulty coil-to-coil connections, physical damage, etc.
  • Phase-to-phase short
  • Ground, that is, winding shorted to frame

Sealing of centrifugal pump:

Seals prevent the leak of liquids in a centrifugal pump and these can cause a severe drop in performance and efficiency over time. In case you repeatedly notice liquid leaking out of your pump system, it means your seals have probably worn out beyond restoration and it is time for your centrifugal pump replacement.

The problem of rusting in centrifugal pumps:

With rust covering your entire pump, including on the inside, there is very little hope for recovery. There is no point in trying to overextend the life of your pump in such a situation. It will only cost you progressively higher to keep the pump running. Replace your pump as soon as you find rust eating into the parts.

Buying a new Centrifugal Pump:

Energy efficiency:

Centrifugal pumps are some of the most energy-efficient equipment out there. Any industrial water pumps dealers in Mumbai or beyond can help cut down your energy costs. Varying by industry, centrifugal pumps consume only about 25-60% of a plant’s electrical motor energy. This can further drop to about 20% if the pump is properly matched with the system requirements.

Pricing of centrifugal pumps:

Centrifugal pumps are some of the most cutting-edge yet affordable pieces of industrial equipment. Its price varies per size and power. Just to put things into perspective, a 100 mm centrifugal pump can cost a maximum of about Rs. 300000 in the Indian market. Likewise smaller ones of up to 0.37 Hp can cost around Rs. 10000.

Planning for pump replacement of your centrifugal pumps? Visit our website www.vemc.co.in, call us at 022 43436655, or email us at marketing@vemc.co.in today! We are the leading industrial water pump dealers in Mumbai.

Optimizing The Solar Performance Using IOT Technology

by vemcoblogs -

The Internet of Things (IoT) as the name indicates connects inanimate objects, rather than people, and enables them to communicate with each other via the internet. This is a great technology for temperature control, security, garbage disposal, and now also your solar rooftop system. It bypasses any form of human intervention and directly enables smart devices to communicate with each other and share data on a real-time basis. When it comes to preventative maintenance, IoT can also act as an Early Warning System to prevent any breakdown of the devices. In this blog, we talk about how this revolutionary technology is going to transform the solar industry, especially by optimizing the performance of solar panel systems.

Implementing IoT-Powered Solar Energy Systems:

First things first, let’s talk about what IoT-powered solar energy systems do and how they work:

  • Smart gadgets with sensors gather real-time data and relay it to the power grid for analysis and storage.
  • The sensors also analyze the overall health of the solar system and provide insights to improve the relevant parameters.
  • The energy use pattern is collected and recorded by the IoT-based solar energy systems.
  • By detecting motion around the panels, the sensors can also help prevent theft and physical damage to the solar power system.
  • Finally, operators using IoT-based solar power systems can manage the energy demand better and companies can leverage data to distribute energy strategically.

Benefits of IoT in generating renewable energy:

A host of benefits entail from using IoT in generating renewable energy as discussed below:

Automation of processes:

A lot of processes can be automated simply by gathering the right kind of data. This could begin with tasks as simple as the panels of your solar rooftop system being shifted to the perfect angle to allow the maximum amount of sunlight to hit the surface.

Cost-effectiveness:

Power companies can monitor the usage pattern of households and establishments by using IoT-powered monitoring systems. This will allow them to utilize resources more efficiently to meet peak demand, manage supply based on consumer needs, and effectively eliminate or reduce the wastage of energy.

Seamless grid management:

Utility companies can place their sensors at various locations across the grid to get a fair idea of consumption. With this the companies can also take critical decisions about switching the load, configuring the network, and controlling voltage effectively.

Enhanced safety:

With IoT, companies can ensure better safety of the grid and an uninterrupted supply of electricity to consumers. Sensors, for instance, can alert companies in case of power outages. Likewise, they can also get instant information on damaged lines, electrocutions, and fires.

Clearly, the Internet of Things is the next technological revolution in the field of solar energy and has immense potential to transform how our solar rooftop systems function. For any further information on IoT in solar energy, solar panel installations, or maintenance, feel free to get in touch at 022 43436655 or email us at marketing@vemc.co.in. VEMC is an ISO 9001:2015 certified company with more than 72 years of industry experience.

How To Improve The Compressor Efficiency

by vemcoblogs -

Low-efficiency levels can seriously impact the operational costs of your business, as you will have to foot much higher energy bills, in return for some sub-optimal performance from your air compressor. As your air compressor dealers will tell you, most compressors usually have ample scope for improvement in terms of efficiency. VEMC as a top compressor dealer in Mumbai can share some insights from its vast experience.

What are the do’s and don’ts to achieve high availability with maximum efficiency?

Compressor installation:

Make sure you choose a spot that has clean dust-free air and also sufficient space for unloading, installation, and regular maintenance. The surface must be level and one that can withstand the load of the compressor. Ensure the compressor is protected from rain, sun, hot air, flammable material, and corrosive agents.

Regular check-ups of machine parameters:

Air compressors have a few critical parameters, such as capacity, pressure, temperature, etc. To ensure that the air compressor is performing at optimum levels, it is very necessary that these parameters are inspected at regular intervals. Any AMC service provider or reputed compressor dealer in Mumbai can be helpful on this front.

Proper maintenance plan:

Preventative maintenance is important to not just boost the efficiency of your Elgi compressor but also avoid breakdown costs.

  • Air leaks –– Never ignore the air leaks, no matter how insignificant they seem. Air leakage can cause serious loss of pressure and wastage of energy.
  • Change filters regularly –– Contaminants in the air such as dirt, dust, or grease, can lead to a drop in air pressure, and a rise in energy consumption. To maintain pressure levels, change your air compressor filters regularly.
  • Maintenance regimes –– Be sure that a comprehensive procedure and checklists are in place, and that your employees are trained in executing proper maintenance. Air compressor dealers and AMC service companies can guide you well on this.

Proper selection of ancillaries:

Unauthorised or generic ancillaries such as dryers, pipes, and filters, may not fit or work well with the air compressor, and instead cause damage to the system and reduce its life span. Always procure them only from an authorized Elgi compressor dealer.

Does a maintenance plan affect my compressors’ efficiency and availability?

As much as possible, follow the recommendations from your air compressor dealer. With a good maintenance plan in place, you simply don’t need to worry about parts, inventory, monitoring, and repairs. It helps you make the most of your investment and effectively manage resources. Therefore, a proper maintenance plan from a reputed AMC services company can significantly boost your compressors’ efficiency and availability.

Are there advanced ways to monitor my equipment?

You cannot possibly see what is happening on the inside of your Elgi air compressors. But parameters like temperature and pressure can tell you a great deal about its health. Any parameter going out of the acceptable range naturally indicates that the air compressor might malfunction, or at the very least, the efficiency levels are affected.

For more information on maintenance, call VEMC at 022 43436655 or email us at marketing@vemc.co.in. We are the authorized Elgi air compressor dealers, and also provide quality AMC services for your compressors. We are the leading compressor dealers in Mumbai.

IE3 Motors –– Best Ways to Save Energy and Reduce Cost

by vemcoblogs -
IE3 Motors

One of the most commonly used equipment especially in the construction and manufacturing sector is the IE3 electric motor. IE stands for “International Efficiency” and 1,2,3 are the classes of this global energy efficiency standard. But improper usage and poor maintenance can make even these premium quality motors a burden. In this blog, we take you through some of the best ways to save energy and reduce costs with your IE3 motors. 

What is an Electric Motor?

An electric motor simply is a device that converts electric energy into mechanical energy. This mechanical energy can then be used to power a wide range of tasks such as drilling or pumping.

Tips to Save Money and Cost With an Electric Motor

Now let’s quickly go through some effective tips to improve the energy efficiency of your electric motor and save some precious units and money.

1. Regular inspection

An electric motor mostly falls prey to low resistance due to the deterioration of the winding insulation as a result of corrosion, overheating, or physical damage. Subsequently, leaks and short circuits can lead to frequent breakdowns. Regularly inspecting the insulation is therefore of utmost importance.

2. Selection of the Motor

Induction motors are best suited for a variety of applications that require continuous duty like centrifugal pumps, blowers, lifts, compressors, and textile mills. Likewise a wide variety of motors, that is, reversible, torque or synchronous are best suited for a unique set of tasks given their design characteristics. Select the right motor after thorough research for the highest efficiency.

3. Application of Motor

Whether your applications are fixed speed or variable speed will also make a difference to your energy efficiency plan. Wherever possible, use adjustable speed drives (ASDs) or two-speed motors. These can reduce consumption when the task doesn’t require uniform levels of energy.

4. Sizing of the Motor

A motor is at its highest efficiency when it operates at near full load conditions. As soon as the load drops, even the efficiency of the newest high-efficient motor set will go down. Normally, a slightly oversized motor is recommended for a particular application.

5. Invest in IE3 Energy Efficient Motors

As already explained, IE3 motors are the premium standard motors in terms of energy efficiency globally.  These energy-saving motors are a result of improved design, better materials, and higher tolerance.

6. Understand the Energy Use

An electric motor converts electrical energy into heat and rotational energy. But understand the difference between motor load (torque) and motor speed. Slow motors that have to carry heavy loads consume much more energy as compared to fast motors with fewer or no loads.

7. Reduce Wear and Tear

Downtime caused due to wear and tear can be quite expensive. Strong early currents can cause a lot of wear because of the stress created on the system. It is best to use soft starters to reduce wear and tear and increase the lifespan of the motor.
For more details on energy savings on your electric motor, or about our range of products like Crompton motors, Bharat Bijlee motors, and Kirloskar motors, speak to our experts at 022 43436655 or email us at marketing@vemc.co.in. VEMC is one of the leading motor dealers in Mumbai with a  special prowess in industrial motors and energy-saving motors.

What is Net Energy Metering & how it helps to Save Energy?

by vemcoblogs -
Net Energy Metering to Save Energy

Businesses and homeowners generating their own electricity using solar may have some surplus energy that they can sell by feeding it into the grid. With net metering, this amount is offset against their current bill from their electricity provider. As solar power becomes increasingly popular, more and more customers are likely to benefit from the concept of net metering which is great for households and businesses, as well as the environment at large. Net metering is such an attractive concept, solar EPC companies in Mumbai and beyond are receiving endless queries about it. So in this blog, let’s simply explain what it is all about, and how it can benefit you.

What is net metering?

Net metering is a billing system wherein users of solar energy are credited for the electricity that they add to the grid. A user may not use the entire amount of electricity generated by the solar power system, especially during the day. If the house is net-metered, the solar net meter will run backward to provide credit for the electricity used at night or other peak usage periods. Customers are charged only for the “net” usage, and the exported electricity is used to serve nearby customers.

How net metering works

The solar power system of a customer is connected to the electricity grid through the main service panel and the power meter. When the solar system generates surplus electricity, it is transferred to the main grid through a bi-directional solar net meter. Sending out electricity reverses the meter from its normal direction. 

The simple billing mechanism of net metering is that customer only pays the bill for the “net” electricity consumed, that is, the difference between the power purchased from the electricity provider and the power returned to the grid. 

How it helps monetarily

Net metering is a great way to put a financial value on the surplus electricity generated by your solar power system. 

  • It brings down consumers’ cost of energy because the value of the surplus power exported is offset against that consumed. This can slash consumers’ electricity bills significantly.
  • No investment is required in an expensive battery bank. This is because net metering allows consumers to use the grid itself as a huge power bank that stores surplus power. A small backup should be enough for power outages.
  • The main components of a net metering system are solar modules and an inverter. Both components are highly easy and inexpensive to maintain, as there are no moving parts and hence little wear and tear. Modules in fact have a pretty long warranty period and are manufactured from semiconductor material. These are mostly protected by tempered glass.
  • With net metering, you can capture vital information like the consumption and export of electricity. This can help you understand your usage patterns and select just the right plans from your electricity provider. This can make your consumption more streamlined, efficient and cost-effective. 

For further information on net metering or any solar project, get in touch with VEMC at 022 43436655 or email us at marketing@vemc.co.in. We are one of the top solar installation company in Mumbai. You can also get in touch with us for solar power installation in Mumbai and beyond, and benefit from our excellent service.

A Pump Energy Audit By VEMC Lead To Substantial Savings For Its Customer

by vemcoblogs -
Pump Energy Audit for savings

An energy audit can be a great way to rein in the energy costs of your pump. This is not just important for businesses but also for the global society at large. Greater energy costs can severely hamper our efforts to create a more pollution-free and sustainable world. As per audit statistics, up to 60% energy that pumps consume can be saved. Replacing old pumps or spares after the energy audit can therefore save an incredible amount of energy. VEMC has unparalleled experience and expertise in energy audits and helps its clients remain efficient, cost-effective, and highly competitive in the market.

The procedure of the energy audit:

They say, “what cannot be measured, cannot be managed”. When going for client audits, VEMC measures three parameters: flow, differential head, and electricity consumed.

  • The flow is measured using a clamp-on ultrasonic flow meter.
  • Two pressure gauges installed at suction and discharge help measure the differential head.
  • A simple power meter can help measure the amount of electricity used by the pump.

VEMC provides measurement accuracy of up to +/-3%.

Assessment plan:

  • On-site inspection of pumping systems with relevant equipment
  • Collecting and punching data for parameters like flow, differential head, and energy consumed.
  • Generating reports that highlight current and potential areas of energy saving
  • Presentation of observation and implementation of the energy optimization regime

Performance assessment of pumps:

On one energy audit, VEMC found that the efficiency of the condenser pumps of a client was on the lower side. We recommended the following to the client:

  • Replace the rotating assembly for energy savings
  • Replace the 250 kW motor with an IE4 motor of the same capacity. These are more efficient, would reduce energy consumption, and boost output.
  • Since the pumps were operating 24/7, Corrocoat was the impeller for energy optimization.
  • Change the discharge line valves to control the discharge pressure of the pump as per the requirement

Carrying out these recommendations would cost the client a maximum of Rs. 29 lakhs (cost of rotating assembly = Rs. 12 lakhs, and IE4 motor up to Rs. 17 lakhs.)

Carrying out these recommendations had a significant impact on energy saving as well as cost-cutting.

  • The estimated savings in terms of flow at 32 m head of the same pump was 1820 cum/hr.
  • Likewise, the power consumed was reduced from 196 to 194.34 kW, which is an 8% energy saving.
  • The total energy saving of the condenser pump was 119084 per annum, which given the costs per unit (Rs. 10) translated into monetary savings of Rs. 1190840.
  • Given the savings, the Rs. 29 lakh investment on the pump was estimated to get paid back within a period of just 21.2 months or 1.8 years.

It is very clear that a VEMC energy audit shows remarkable energy-saving and cost-optimization results. To get your first pump energy audit conducted, get in touch with us at 022 43436655 or email us at marketing@vemc.co.in

Here are a Few Ways to Make Your Solar Installation Absolutely Safe & Secure

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Safe And Secure Solar Installation

Solar energy is the future and a lot of homes are opting for it hoping to cut back on their electricity bills and receiving an uninterrupted power supply. But solar power installation must be done with a number of safety prerequisites in mind. The best solar company will take into account all factors like your building infrastructure like space or roofing and electrical connections before installation.

From the Electrical Point of View:

Before getting in touch with a solar energy company, track and keep a record of your monthly bills and the power drawn by your electrical appliances. You can do this using the energy calculator apps online. Usually, the monthly consumption in a typical urban household is 1-5 kW. Depending on your electricity needs, choose a solar power system of the right size. Standard solar panels have a 250 Wp (Watt peak) configuration, while larger panels can go up to 300 Wp depending upon the requirement.

Make sure the installer is connecting all the electrical wiring carefully and without leaving any glitches behind. A qualified engineer must supervise the process of routing the cables and it must be ensured that the cable is not damaged. Never touch the electrical wiring or contacts without proper protection gear or insulation.

The PV cells generate electricity by converting the sun’s energy, and the inverter converts the Direct Current (DC) from the panel into Alternating Current (AC). In case the components are “live” with electricity generated from the sun, they can cause an arc-flash electricity shock leading to severe injury or death. Make sure the system is properly earthed to prevent any such situations.

Make sure your solar power company is doing enough to protect your cables, say by using a flexible metal conduit when wiring through walls or if they are exposed to sun and rain outdoors.

Identify the Roof Structure, Type, and Material of the Roof:

Before you go for solar power installation, ensure that your roof offers ample space, has the right structure, and is made of robust material. Otherwise, mounting a heavy solar panel system can cause serious damage to your roof and accidental injuries to your family. Roof space is one of the primary factors to consider in metros, and is given the highest importance for instance by solar EPC companies in Mumbai.

The best roof for installing solar panels is a composite asphalt shingle roof. But by and large, solar panels are viable on most roof types except for wood shake roofs. The roof must ideally face south but in a country like India, as long as you have space for the panels, you’re good to go. Most places receive ample sunlight during the day irrespective of the direction of the roof.

When it comes to the ideal roof design for solar panels, the only rule is ‘simpler the better’. Roofs with lots of tiers, pipes, chimneys, and skylights can complicate the installation effort manifold.

If your roof is old or dilapidated, make sure you replace it before the installation. The old roof may not just be dangerous, it will cost double to dismount and then remount the panels when you eventually plan to replace it.

VEMC is a leading solar installation company. For solar panel installation in Mumbai, or for any information on solar power installation, feel free to get in touch at 022 43436655 or email us at marketing@vemc.co.in.

How to Install Mechanical Seal in an End Suction Centrifugal Pump

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End Suction Centrifugal Pump

Centrifugal pumps have a rotating shaft that sticks out from the back of the pump casing through a seal chamber or stuffing box. The mechanical seal is needed to prevent fluid from leaking into the atmosphere along this shaft. Failure of these mechanical seals can have serious implications for the pump’s safety and reliability. It is therefore very important to install the seal properly.

How a Mechanical Seal Works in an End Suction Centrifugal Pump

A mechanical seal needs two smooth and flat seal faces in contact, one that is rotating with the shaft and another that is stationary with the casing. The faces are sealed to their holders using secondary seals. These are flexible so that they’re placed in contact and move to compensate for any misalignments or wear and tear. The faces however need lubrication to function at their best.

Steps for Installing a Mechanical Seal in Centrifugal Pumps

Here are 7 simple steps to follow when you are installing or replacing a mechanical seal in end suction centrifugal pumps:

1. Make sure the power is off

Make sure you cut the power so that the motor is not in motion. It’s even better to be doubly sure by cutting the main supply so that the motor may not start up while you’re working on it. 

2. Isolate the fluid from the pump

Next up, shut both inlet and outlet isolation valves and drain the pump casing by removing the drain plug.

3. Dismantle the pump

Use a wrench to unscrew the bolts holding the housing of the pump in place. Detach the pump carefully and keep the bolts safe for reassembly later.

4. Identify the stuffing box arrangement

If the pump is of the back pull-out design, remove the spacer element in the coupling, remove the casing bolts and pull the pump away from the casing. You can then access the seal without having to disconnect the casing from the piping. 

In case the pump is not a ‘back pull-out design, you’ll have to completely disconnect the pump after you disconnect the coupling between the pump and shaft. If the pump is a close-coupled design, you’ll have to remove the entire pump.

5. Remove the impeller

Dismantle the impeller of the pump. You can find the seal located on the shaft behind the impeller. Detach the shaft by holding it in place using a wrench and then rotate the impeller to unscrew it.

6. Detach the old seal

After removing the impeller, you can access both the rotary and stationary seal parts. The parts are usually held in place with screws all along the shaft. Remove the screw and pull away the rotary seal parts, and then remove the stationary part of the seal.

7. Replace the seal

Now place the replacement seal parts along the shaft. Push the stationary part into the casing using a new o-ring or gasket material. 
For any guidance on your centrifugal pumps, including all your sealing needs, feel free to speak to our experts at 022 43436655 or email us at marketing@vemc.co.in. We at VEMC are authorised Kirloskar dealer based in Mumbai and deal in a range of Kirloskar centrifugal pumps including multistage centrifugal pumps, (also called horizontal multistage pumps).

Compressed Air Industry Trends to Watch in 2023

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Compressed Air Industry Trends

As more and more companies become energy and cost-sensitive, compressed air will emerge as one of the most favored ways to power tasks in factories and homes. In this blog, we take you through some of the most significant compressed air trends that customers and air compressor dealers must watch in 2023.

Here are the trends in the compressed air industry to look out for in 2023

1. Demand for Compressed Air Equipment Remains High

Compressed air is often the 3rd or 4th most favored utility in the manufacturing industry. As per a market analysis report, the global air compressor market stood at $32.02 billion in 2020 and is expected to grow at a CAGR of 3.4% from 2021 to 2028. Although the growth was somewhat tempered by the pandemic which caused a general slowdown across sectors, the post-pandemic world is ever more focused on energy efficiency, reducing costs, and cutting CO2 emissions. With the growing standard of living especially in the Asia-Pacific region, air compressors will see plenty of demand due to the rising use of air conditioners.

2. Lead Times Remain Longer than Normal – Especially for Steel Parts

A number of factors can affect the lead times of spare parts such as demand, stockouts, shipping delays, inefficient inventory control, and unnecessary processes. An Elgi compressor with its sophisticated design is made up of a number of small and large components. 

When it comes to the spare parts of your air compressors, you might experience longer than normal lead times. This is because most industries are just reopening after the pandemic, and with a sudden spurt in demand, mills will be looking to complete orders of priority sectors ahead of manufacturers of air compressor parts. This being a classic demand-supply problem, might even affect the prices of the spare parts, causing a bit of a concern to customers as well as air compressor dealers.

3. Compressed Air Supply Chains and Prices Are Stabilising

Compressor dealers have witnessed a serious disruption in business due to the pandemic. The complex designs and assemblage of a number of parts sourced from different manufacturers could make logistics for a typical Elgi compressor dealer rather challenging. But as the pandemic ebbs away, the global economy is recovering fast, most Elgi air compressor distributors would expect the supply chains and prices to stabilize once again.

4. Industrial Internet of Things (IIoT) Applications Are Coming for Compressed Air

The Industrial Internet of Things (IIoT) will have massive implications for preventative maintenance, performance tracking, and energy efficiency. Air compressors communicating over the internet can share the condition of their parts such as belts and motors. The enormous amount of data produced as a result will be handy in designing energy-efficient and high-performing air compressors. Monitoring will become remote and convenient as parameters like flow, pressure, speed, etc. will be available on mobile devices. 

VEMC is one of the leading ELGi Air Compressor Dealers in Mumbai. For details or any queries on Elgi air compressors, feel free to contact our experts at 022 43436655 or email us at marketing@vemc.co.in. We at VEMC are way ahead of other air compressor dealers with a proven track record of excellence. As the most reliable Elgi dealer, we are committed to swift on-call service and top-class preventative maintenance.

8 Ways To Improve The Efficiency Of Your Compressed Air System

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Improve The Efficiency Of Your Compressed Air System

A number of factors can hold back your air compressor from performing optimally and giving you the best results at lower costs. Whether it is your compressed air filter or lubrication, everything must work seamlessly in tandem, enabling you to make the most of your compressor at limited energy inputs.

Here are 8 ways in which you can boost the efficiency of your Elgi air compressors and ensure they work for you.

Understand Lubrication

Like all other equipment in your facility, an air compressor consists of moving parts. To avoid wear and tear on these parts while they’re in action, lubrication is a must! However, both over and under-lubrication can create problems. Also, the quality of the lubricant must be chosen carefully to avoid damage to the machine. This is all the more important if you’re using your compressor in a sensitive line of work such as food processing or confectionery, as it can poison the consumables. Each system requires a specific type or level of lubrication and the safest way out is to go through the user manual and follow the instructions.

Know how Particulates Impact your System

Particulates can enter your Elgi compressor system, hamper its performance or even cause damage to the parts. All of this depends upon the atmosphere where an air compressor is being used and accordingly necessitates the use of a good quality compressed air filter, such as an Elgi air filter.

Prevent Compressor Contamination

Both moisture and particulate matter can be a source of contamination for air compressors. This can cause poor air quality of air being forced out from the compressor or damage to the internal parts of the compressor itself. To avoid this, regular inspection, the use of air dryers, or the right air filter for the compressor, is important.

Cooler Building Temperatures

Both increases and decreases in temperatures can cause the performance of an air compressor to plummet. This can be combated by regulating the temperature of your building using air conditioning, central heating, or natural ventilation.

Reusing the Energy you Create

Sustainable use of air compressors can be ensured by avoiding wastage and making the most of the energy released. Air compressors release a lot of heat as they function. So make sure you tap this heat and utilise it well for some or the other function, in your building.

Keep your System Clean

All mechanised equipment requires regular upkeep and maintenance to ensure optimum performance. Air compressors are no exception. Inspect and replace the compressed air filter frequently and clean the inner parts regularly to keep the system in its best shape.
Whether it is replacing your compressed air filter or scheduling an audit for your compressor system, we can keep a close watch on all your maintenance parameters. We are the leading Elgi air compressor dealers in the country, and pride ourselves on having a rich industry experience of 72 years. So get in touch with VEMC –– the most reliable Elgi compressor dealer in Mumbai out there, and book an audit at 022 43436655 or email us at marketing@vemc.co.in.

When To Add An Air Dryer To Your Compressed Air System

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Air Dryer in Compressed Air System
Air Dryer

If you own an air compressor, you must have come across lots of suggestions online or otherwise, of adding an air dryer to it. This is because moisture in compressed air can be quite harmful to your machinery and some moisture-sensitive business operations as well. The degree of harm of course varies from one business operation to another. It can cause moulds or rust to develop over the metallic parts of your equipment (including the air compressor itself) and significantly reduce their working life and also affect their performance. Well, this is where an air dryer comes in!

An air dryer effectively saps the moisture from the compressed air, helps you prolong the life of your machinery, and also performs the tasks at hand perfectly well. In this blog, we take you through all that you need to know about air dryers in your compressed air system. 

What type of air dryer do you need?

Your choice of an air dryer for your compressor depends largely on the function you want it to perform and also your geographic location. Your Elgi compressor dealer in Mumbai will typically take you through the two types of air dryers that use these mechanisms: 

  • Desiccant air dryers: These are best suited for typically cold climes where the risks of freezing are quite high. These air dryers use desiccants such as silica gel or activated alumina which suck the moisture from the air as it passes through the compressor system. These can also be put to effective use in cold storage of pharmaceutical or food processing companies.
  • Refrigerated air dryers: In this type of air dryer, a refrigerant chills the air down to sub-zero temperatures. This freezes any moisture present in the air which is then removed before rewarming the air and pushing it through the piping to finally use it for the operation.

Selecting the right air dryer for your application

Moisture can cause serious damage to your equipment and in fact your air compressor system. But besides that, some business or industrial operations may require absolutely moisture-free operation and atmosphere. According to one estimate, moisture-related damages lead to the discarding of approximately 10% of all containerized goods. For instance, moisture can be a cause of serious losses in confectioneries, dry fruit, or wafer packaging operations. If you’re using a compressor in such facilities, therefore, you must ensure the complete removal of moisture from the compressed air.  Most air compressor dealers will recommend an Elgi air dryer –– a fantastic product that can come to your rescue when it comes to getting rid of unwanted moisture in your compressed air.
Make sure you’re purchasing an Elgi compressor or Elgi air dryer, only from authorised Elgi air compressor dealers who have both the product and the technical expertise for servicing it. VEMC is one highly acclaimed Elgi dealer that deals in both Elgi air dryers as well as Elgi air compressors and has a rich industry experience of over 72 years. If you need help finding the right compressed air dryer for your requirement, feel free to speak to our experts at 022 43436655 or email us at marketing@vemc.co.in.

Cutter Pump VS Grinder Pump: What’s Best for Sewer Systems?

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Cutter Pump VS Grinder Pump

Your choice of pump has to depend on the operations you want to perform with it. Today, there is a wide range of options available, each pump suited for the right kind of task. When it comes to sewage pumps, two options that clearly stand out are cutter pumps and grinder pumps. Both essentially perform the same function of cutting down solid or semi-solid waste to prevent clogging. Only the technique differs. In this blog, we take you through the various aspects of both these options you need to consider before choosing it for your facility.

Clogging problems in sewage treatment

Flushable products like wet wipes, toilet paper, and scrub pads are offering a great deal of convenience to consumers these days. However, these also pose serious problems to city drainage systems as they lead to severe clogging. This can be extremely difficult to handle and can lead to an enormous amount of expenses for the repair and restoration of the drains.

Centrifugal pumps are unable to deal with this flushable material as they are designed with a rotating impeller. This has critical tolerance which makes it extremely difficult for solids to pass through. Thus, old rags, ropes, clothes, and cans can get stuck in the drains. As flushable products are fast becoming a part of our urban life, cutter or grinder pumps have also become indispensable.

Cutter pumps

These use a sharp cutting blade made of tungsten carbide that is attached to the impeller and cuts down solid or semi-solid sewage into smaller pieces of nearly 25 mm each. They can deal pretty well with rags, toilet paper, plastics, and cleaning products, thus preventing clogging of your drainage.

Grinder pumps

As opposed to cutter pumps, grinder pumps follow the mechanism of grinding the waste. A blade rotates inside a cutting ring that has multiple teeth. This way, solid or fibrous matter is ground down to finer pieces that can then be easily discharged out of the drains. These pumps can typically handle larger and more diverse materials as compared to the cutter pumps.

Cutter pumps vs Grinder pumps

These are energy efficient and low-costThese are expensive and less energy-efficient
These can deal with smaller sewageThese can cut down larger pieces and more diverse material
These are suitable for industrial operations as well as municipal useThese are best suited for large industrial purposes where sewage may be tougher and more voluminous
These have a wider head and flowThese have a narrower head and flow
Oil and grease can pose some difficulties These consume too much energy and may require screening of solids

The best choice to deal with clogging is Kirloskar’s CWC cutter pump. It is a robust, multipurpose pump that is well-suited for industrial and municipal purposes. Kirloskar cutter pump is also highly energy efficient and causes a minimum environmental impact. The maintenance is easy and highly inexpensive. 

For more information on pumps for sewage treatment, get in touch with us at 022 43436655 or email us at marketing@vemc.co.in. VEMC is an authorised Kirloskar pump distributor with a rich industry experience of over 72 years.

Centrifugal Pumps are Energy Guzzlers. How does Pump Energy Audit Help?

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Centrifugal Pumps

A centrifugal pump can seriously raise your energy costs if you’re not keeping tabs on its efficiency levels. It is necessary that you take timely measures to eliminate inefficiencies or replace the pump altogether as the last resort. The most effective method in this regard is a thorough energy audit that can bring forth all the irregularities or issues with the pump’s performance. It can also give an estimate of energy savings if you switch to a different pump. In this blog, we talk about how an energy audit of your centrifugal pump can contribute to significant savings and cut down on costs.

Costs of Pumping

Pumping is a rather expensive affair across the world and more so in an energy-strapped developing country like India. According to some estimates, pumps consume 10% of power across the world, and switching to a more efficient water pump could save up to 4% of electricity globally. 

The main reasons behind the high costs of pumping could be an inappropriate selection of pumps, old inefficient design, improper layout, etc. By switching over to a more energy-efficient pump, you can reduce your bills, increase productivity, boost profits and enhance business competitiveness.

Centrifugal Pumps Consume a Lot of Power

Centrifugal pumps consume anywhere between 25% and 60% of a plant’s electrical motor energy. This can be made worse if the pump is improperly sized or poorly performing. Lack of maintenance and poor condition of the pumps is other reasons for the spike in running costs of a pump. This requires proper matching of a pump of the right capacity with the operation at hand. Likewise, a properly scheduled maintenance regime is a must to eliminate inefficiencies and overdrawing electricity over the lifespan of the pump.

Steps to Follow

An energy audit is the best way to keep the rising electricity costs in check. It is highly beneficial for business, society, and the environment at large. A pump energy audit is conducted by following these steps:

  1. Shortlist all the pumps for the audit
  2. Measure parameters like flow, pressure, and energy consumption
  3. Calculate the pumping efficiency
  4. Discuss the case with a specialist like an engineer or the maintenance staff
  5. Analyze data
  6. List recommendations and present them in the final report

How you can Save Energy

After an energy audit, you can get an in-depth understanding of the gaps, and the affirmative action that must be taken to fill them. With comprehensive data collection, analysis and modeling, it also gives you an idea about how much you can save by switching to a new alternative. In most industrial pumping systems, energy audits can help save up to half the energy costs!
VEMC can take care of the energy audit services of your pumps. We have all the expertise required to carry out Performance Measurement and energy optimisation of pumps and motors. Our team can provide a superior analysis of your current energy consumption and also the annual expenditure followed by a cost-returns-based proposal for different alternatives. For further information, feel free to call us at 022 43436655 or email us at marketing@vemc.co.in.