About Us

We are a reputed organization engaged in manufacturing, exporting, importing of a wide range of solar energy products, heating products and associated accessories. Our extensive range of product encompasses solar water heater, solar street lights, solar cookers, solar power system, wood water heaters, solar dryer, solar garden lights and industrial solar water heater. In addition to these, we also offer Solar home lighting system, solar lantern, flat Plate collector and solar pressurized water heater.

Features:

• Easy to install
• High efficiency
• Compact in size
• Require less maintenance
• Easy to operate
• Longer service life

Apart from the above mentioned products, we also offer

• Flate Plate Solar Collector
• Evacuated Solar Tube Collector
• Solar Hot Water Products
• Solar Collectors
• Industrial Solar Water Heaters
• Residential Solar Water Heaters
• Solar Water Heaters based on Flat Plate Collectors
• Solar Water Heaters based on Evacuated Tube Collector

We are a well-known manufacturer, exporter and importer of a wide range of solar energy products, heating products and associated accessories. These products find applications in various areas such as:

• Hotels
• Restaurant
• Canteens

With our commitment to offer our clients a superior quality and highly efficient range of solar energy products, heating products and associated accessories, we have developed a separate R&D unit. This unit is manned by a team of professionals which rigorously carry out market surveys to find out the new ways to improve our existing range of product.  The superior quality of our products & timely deliveries has earned us huge clientele, across the globe. 

Our R&D activities pertain to the following:

• Raw material
• Technology
• Production process
• Design

We have a vast infrastructure spread across a sprawling area of 5000 sq.ft. and installed with a capacity of 100 units. Our entire manufacturing unit is segregated into shops such as sheet metal shop, light fabrication shop and heavy fabrication shop. All these units works in close coordination to manufacture our range of product in accordance with international quality standards.

Sheet Metal Shop:

Our sheet metal shop department carries out the marking, shearing and bending of the tank outers, collector boxes etc.

Light Fabrication Shop:

The light fabrication shops carry out the of copper tanks, stainless Steel tanks & aluminum collectors welding with help of modern argon welding & oxy-acetylene welding facility. We conduct regular inspections in order to keep the tanks and collectors within conformance limits.

Heavy Fabrication Shop:

In this shop, we fabricate thick and high capacity industrial tanks.
This shop enables us to customize our products as per clients’ specifications

The latest machines installed at our infrastructure are:

• Cutter
• Welding machine
• CNC machine

These machines are maintained properly by our skilled workforce to provide consistency during production process. Further, we also have an in-house designing unit installed with CAD/CAM software which helps us to manufacture our range of product with precision.

Being a quality conscious organization, we follow strict quality measures to deliver our clients a superior quality range of products. To maintain these high quality standards we have employed several quality analysts who check our products on various parameters. The products we offer comply with the BIS standard as well as ISO 9001:2000 certified requirements.

Some of the tests we conduct on our range of product are:

Pressure testing:

To get completely leak proof collectors, we test Each and every tank and collector manufactured by us at higher than the usual operating pressures.

Glass testing:

We use only the best possible Toughened Glass with a transmissivity of 0.85% or higher only which ensures their optimum performance or strength. The transmissivity and toughness of these glasses are tested before being used.

Testing of our painted products:

To give great finish and the appeal, all the powdered coated collectors and tank outers are tested for paint quality and thickness.

Testing of Rubber Products:

To ensuring longer system life we test rubber gaskets and flanges at 120 degrees Centigrade to make sure that they don’t deform at high operating temperatures.

• Our mission is to constantly modify our products in design ad quality because of our valuable client's expectations
• We are looking forward to create a world without pollution

Being a client centric organization, we strive hard to understand requirements of our clients and accordingly fabricate our range of products. The high quality standards we have been able to maintain has helped us gain the well deserved appreciation of our esteemed client like Hyundai.

We offer our clients:-

• Superior quality
• Affordable prices
• Timely delivery
• Customization facility

What is Solar Hot water System?

Solar Hot Water System utilizes solar energy to heat water to the desired temprature. The heated water may be stored in insulated tanks for use in the morning or used during day time. The complete Solar Hot Water Tank, Circulation pump, Temperature Controller for the pump and instrumentation to measure water flow rates, quantity of water used, temperatures of hot and cold water, electrical energy consumed and cumulative time for which circulation pump runs.

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What is Solar Collector?

A solar collector is a device which captures Solar Energy converte it into heat and used it to heat water. There are different designs of Solar Collector in use. The most commonly used design is of tube and fin type.

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How does the Solar Collector work?

The sun-ray pass through the transparent glass and strike on the black surface of the absorber. The black coating on the absorber converts the radiation energy of sun-rays into heat. This heat is conducted to the tubes by fin which is made of copper or high conductivity material. The tube carries water which receives heat from the tube and becomes hot. To reduce the heat losses and thereby increase the efficiency of the solar collector, thermal insulation is provided at the back of the absorber.
The glass covers serves two main purposes. It reduces the effect of wind and heat losses, and protects the black coating on the absorber from the effects of weather, rain etc.

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Why do the Solar Collectors face the south direction?

India in northern hemisphere, therefore maximum sunshine is captured by a surface facing South direction over the whole year. This is particularly so during winter.

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Why is the collector kept in an inclined position?

For maximum efficiency, the sun-rays should Strike the collector at right angles. For water heating applications, maximum output is required during winter when the sun is at lower altitudes. For maximum output therefore, the collectors should face south direction and be kept at an inclination equal to latitude of the place, which is around +15 to +20 degrees.

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How is the Solar Hot Water System specified? What is LPD?

The capacity of a solar hot water system is specified is LPD. It is a short form for liters per day. The intensity of solar radiation varies through out the day, hence capacity cannot be specified in terms of hourly output.

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How is the solar system capacity determined for a given requirement?

To determine the capacity of the solar system required first find out the hot water consumed during the day as well as during night, over 24 hours during winter season. The capacity of the solar hot water system in LPD should be equal to or grater than the hot water consumed during the 24 hours.

What is forced flow (FF) System and what is Thermosyphon System (TS)?

The water heated by the solar collector needs to be transferred to the insulated storage tank. When the heated water in transferred by means of a pump (usually for large capacity systems) it is called forced flow (FF) system. Most industrial systems are FF systems. When circulation of heated water from collector to the storage tank is by means of the density difference between hot and clod water, it is called thermosyphon (TS) system. In this system the storage tank storage tank must be placed above the collector.

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What is FTC?

FTC means Fixed Temperature Control.
The operation of the circulation pump of forced flow system needs to be controlled to avoid pumping of cold water into the hot water storage tank. In FTC control, it is achieved by monitoring the temperature at the outlet of the collector. The pump is switched ON only when the outlet temperature is higher than the SET temperature. If the temperature falls below the SET temperature, the pump is automatically switched OFF.

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Is it possible to get hot water early in morning?

Yes. The cold water is heated during the day & it is stored in an specially insulated storage tank all night, this insulation prevents the water from losing heat, so that you have piping hot water the next morning.

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Can we get hot water all 24 hours of the day?

Yes! The advantage of the solar hot water geyser is that you get hot water any time of the day or night, and irrespective of the fact whether there is electricity or not! This is true, but is limited to system capacity- the maximum quantity of hot water that can be utilised in a day will depend on the system capacity. If you withdraw more water than the rated capacity, then the water might not be hot enough.

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What happens during the monsoon season when it is raining and there is less sunshine?

India receives a clear and good sunshine almost throughout the year as it is close to the tropics. Even during winter the Solar Geyser works extremely well as it has been especially designed for maximum efficiency during the winter season. However during the monsoon season, depending on the hours of sun shine available, you may get varying degrees of warm water. PROSUN offers an optional electric heater installed within the solar geyser, to heat water during the rainy season, if you desire hotter water.

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Are temperatures similar to electronic geysers possible using Solar Geysers?

Electric geysers are usually set to 60 C, so you need to mix some cold water in geyser outlet water to make it suitable for bathing. It is almost the same with domestic solar water heating systems, the water temperature are generally about 60 C with an variation of about +/- 5 C, depending on season. So the Solar Geyser can adequately replace the electric geyser, plus save money on the electric bill.

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Can higher temperatures be obtained?

Yes. Much higher temperatures are possible with the Solar Geyser, though the use is restricted to the industrial sector. PROSUN has designed many industrial systems with high temperatures such as 95 C for provided boiler feed water.

What kind of maintenance is required?

Most domestic Solar Geysers don’t require a lot of maintenance, as there are no moving parts in the solar geyser. The only maintenance needed is cleaning of the glass once a month for best results. And if you live in a hard water area, the descaling process once every year is recommended.

For Industrial systems, the pumps need to be inspected at frequent intervals, check for scaling and choking periodically and replacement of some parts of the control panel, as and when required.

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What is the estimated life of a Solar Hot Water System?

PROSUN uses all Aluminum, Stainless Steel or Copper parts for the Solar Hot water systems manufactured by us; hence they usually last for about 15-20 years. Some maintenance may require periodically getting maximum efficiency like electric back-up etc. may need replacement. We have some of our very first Solar Geysers (manufactured 15-18 years ago!) still functioning properly to the great satisfaction of our customers.

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Is it possible to integrate the Solar Hot water system into the design of my house?

Yes! The system can be designed into your house to fit unobtrusively on to a sloping roof, with a storage tank concealed, etc. This is best done, with the active involvement of your architect with our representative at the design stage itself, any modifications or changes later on are difficult to incorporate.

Owing to our ethical business policies and superior quality range of products, we have gained a stronghold in both domestic as well as the international markets. Some other reasons because of which our clients prefer us are:

• Efficient and energy saving equipment
• High performance life
• Hassles free monetary transactions through Cash and Demand Draft
• Effective after sales service
• Customized equipment and packing