We designed and delivered oil separators for new compressor and chiller units but as well as for replacement of existing oil separators that needed to be replaced as they did not work properly as the carry over of oil into the system was too high. Our Ammonia Oil separators are guaranteed to have a Oil carry over of less than 5ppm. We delivered oil separators for the following refrigerants; Ammonia, propylene, R410A, R407F, etc.