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The SuperStor® Solar Drain Back Tank from HTP is designed to stabilize and protect solar thermal systems. A drain back tank allows all the water from solar collectors and related piping connections to drain into the tank reservoir, protecting the system from both freezing and overheating. The SuperStor Solar Drain Back Tank is available in two designs: the DBX series includes an internal heat exchanger for use with a storage tank, while the DB series has no internal heat exchanger and is intended for use with a tank that contains an internal or plate frame heat exchanger. Drain back tanks are ideal when designing solar thermal systems, especially in climates that exhibit very hot or cold temperatures. Drain back systems have fewer components than pressurized glycol systems, so maintenance is greatly reduced. Drain back systems also provide protection in cases where water quality may be a problem. |