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United Nations Bangkok installation In 2013 we installed an Elgressy EST chemical-free water treatment system on the cooling towers of the United Nations building in Bangkok. More than ten years later it is still running and is one of our main reference sites in Thailand. The site Chiller plant of about 900 TR (594 kW […]

Isuzu EST installation In 2018 we installed an Elgressy EST chemical-free cooling water treatment system at Isuzu in Bangkok, Thailand. The system replaces chemical dosing on the cooling tower loop and keeps the chiller condensers free of scale. How EST works: Elgressy EST treats a side stream of the cooling water by controlled electrolysis. Calcium […]

Bridgestone Rangsit installation In 2016 we installed an Elgressy EST chemical-free cooling water treatment system at Bridgestone in Rangsit, Pathum Thani. The system protects the plant’s cooling towers and chillers from scale, corrosion and biofouling without anti-scalants or biocides. How EST works: Elgressy EST treats a side stream of the cooling water by controlled electrolysis. […]

UNILEVER Cavite Manila EST installation In 2018 we installed phase 1 of an Elgressy EST chemical-free cooling water treatment system at Unilever in Cavite, Manila, Philippines, with our local partner GLJM. Results after three years During a service visit in December 2021, GLJM cleaned the EST reactors. Unilever reported back to us: “Lots of scales […]

Nana Square Sukhumvit Bangkok EWT installation In 2018 we installed an Elgressy EWT system at Nana Square on Sukhumvit Road, Bangkok, for chemical-free treatment of the building’s water system. Elgressy’s electrochemical systems remove scale-forming hardness from the water and control bacteria and biofilm without adding treatment chemicals, keeping pipes, tanks and heat exchangers clean. Related […]

Upcoming projects 2019 2016 was another busy year for us. One of the most prestigious projects was delivered to Mitsubishi Motors Thailand in Laem Chabang: two Elgressy EST systems, installed in phase 1 (2015) and phase 2 (2016). Running without problems By 2019 the systems were still running flawlessly. EST keeps the cooling water in […]

Energy Saving Cost after 1 year installed system One year after installing Elgressy EST at the United Nations building in Bangkok, we compared the chiller plant’s energy use with the original design. Clean condenser tubes brought the approach temperature down and cut electricity use. Before EST Chiller capacity 900 TR (0.66 kW/TR) Electrical load 594 […]

Approach temp. 1 year after installed sytem The chiller approach temperature is the best day-to-day indicator of how clean your condenser tubes are. This table compares the monthly approach temperatures of a Bangkok chiller plant before and after installing Elgressy EST. Approach temperature, 2013 vs 2014 (°C) Month CH-1 2013 CH-1 2014 CH-4 2013 CH-4 […]

More than 50 kg of scale was removed by EST from cooling systems in 6 months time, Amazing result! Six months after installing Elgressy EST on a client’s cooling tower system, we carried out the first routine service. When we cleaned the four EST reaction tanks, we collected more than 50 kg of scale. What […]

The volume of Scale from cooling tower after 5 days To measure how much scale Elgressy EST takes out of the cooling water, this client installed a scale filter on the EST discharge. After only 5 days of operation the filter already held a large volume of scale. Why this matters Every kilogram of scale […]