Energy-efficient dampening solution circulators : DELTA.D ECO

delta.d eco is the first highly economical dampening solution circulator made available for web offset printing applications that meet all the requirements for cost-efficient and process-controlled production. State-of-the-art technology maximises the savings potential without compromising performance of operating safety.

On many refrigeration systems including those for print applications, the load will vary widely, making the use of compressor capacity control necessary. Traditional capacity control is done using variable speed drives, unloaders, hot gas bypass or paralleling. Some of these solutions have intrinsic problem.

They are often complicated, making them unreliable. Some require a high level of technical skills or an unaffordable first initial capital investment. The operating behaviour of the Digital- Scroll ensures improved control accuracy of the dampening solution temperature and supports the reduction of dampening solution volumes in the system.

The digital modulation is based on a simple mechanism. Capacity control is achieved by separating the scroll sets axially over a short period of time. It is a simple mechanical solution ensuring precise temperature control and system efficiency.