Adopting R-717 refrigerant, which poses no environmental burden and thus has no concerns about future regulations due to the phase-out of fluorocarbons. The evaporative condenser method takes advantage of the characteristics of the refrigerant.
R-717 refrigerant is commonly used worldwide. In Japan, due to stricter safety regulations in the 1970s and subsidies for Freon, all manufacturers promoted the use of Freon. The Maekawa Manufacturing Group continued to provide services overseas, accumulating technology and human resources. In order to resume operations domestically in earnest, we focused particularly on improving safety technology and were able to start in 1990. As a result, we gained further recognition with the adoption of our systems for the ice skating rink and bobsleigh venue at the Nagano Olympics, and today, about 70% of our shipments continue to be R-717 refrigerant. Thanks to technological advancements, it has become possible to reduce the amount of refrigerant held from 1/10 to 1/50 without losing refrigeration capacity, compared to the methods used during the period when R-717 was considered dangerous in Japan. Not only do we have technology, but we also have a large number of experienced service personnel, from young to veteran, who are well-versed in handling R-717 refrigerant and are stationed nationwide, which is a unique feature of our company that others do not have.
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basic information
This is a chiller that uses R-717 refrigerant, which has no environmental impact and can supply temperatures from -36°C brine to 7°C cold water. With an ozone depletion potential of 0 and a global warming potential extremely close to 0, there is no possibility of future regulations, allowing for secure investment. It features an evaporative condenser, eliminating the need for a cooling tower and achieving a condensation temperature that is 5°C lower than water-cooled systems, resulting in energy savings. Additionally, due to its patented integrated evaporative condenser design, on-site refrigerant piping work and leak testing are unnecessary, shortening the construction period. It is equipped with necessary safety devices, ensuring safe use without the need for separate arrangements.
Price information
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Delivery Time
P4
Applications/Examples of results
It is delivered to various markets that require cooling. In particular, it is actively adopted in air conditioning for refrigeration and cold storage, as well as process cooling in the food, beverage, dairy, and industry sectors, where there is a high interest in the environment and energy conservation. Recently, the adoption in the chemical industry, which is strict about equipment safety, has also been increasing.
Company information
Our company is the refrigeration and heat exchange component manufacturing division of Maekawa Manufacturing Co., Ltd. Starting this year, regulations on HCFC refrigerants, including R-22, will be implemented. As the manufacturing division of Maekawa Manufacturing, which has been at the forefront of promoting the domestic full-scale deployment of environmentally friendly R-717 refrigerant, we will continue to commercialize this trend and respond to customer needs by further developing and manufacturing products.