Profile: Yolyapi A.S. specializes in engineering and contracting services for all types of industrial applications of wet cooling towers. Our wet cooling tower is a heat rejection device that extracts heat from the moving water stream and passes it into the atmosphere thereby reducing the water temperature significantly. The type of heat rejection in a cooling tower is termed evaporative in that it allows a small portion of the water being cooled to evaporate into a moving air stream to provide significant cooling to the rest of that water stream. Our products include packaged type cooling towers and site-erected cooling towers.