Bladder tanks are the main component in a balanced pressure proportioning system. The bladder tank is an ASME coded pressure vessel. The tanks are constructed of SA 516 GR.70 carbon steel and include a neoprene rubber bladder with nylon reinforcements and a perforated pvc center tube. Bladder tanks are available in both vertical and horizontal configurations and are an option in many high areas. The uncomplicated design avoids the risk of a system failure and the ease of operation requires no outside source. The bladder tanks are also offered with pre-piped ratio controllers, UL listed with sizes 3”, 4”, 6” and 8”.