APV 4 Effect Rising Falling Film Plate Evaporator 6 Stage with TVR. It is a Hybrid unit`, utilizing an APV Falling Film plate pack for the 1st effect and APV Rising, Falling Film plate packs for the 2nd, 3rd and 4th effects. The 4th effect is comprised of 2 Rising Falling film plate packs. The TVR increases steam to evaporation efficiency up to almost 5 to 1. All product contact surfaces are 316 stainless steel including heat exchanger plates, vapor separators, pumps, vapor and product tubing. Evaporation rate 30,000 pounds per hour. This system was set up to run citrus juices and will be able to run most other types of juice or similar products.(H12).