Zero Loss Refrigeration Dryers Combine Performance with Reliability for Maximum Efficiency

The latest Tundra range of refrigeration air dryers, now available from Hi-line Industries Ltd, have been designed to the highest engineering specification, providing the maximum operating performance with the lowest operating cost. Eighteen models in the range are available ex-stock including units from 20 to 1040 scfm air throughput and operating off a 230V single phase 50Hz supply, together with models having air throughput from 605 to 1040 scfm with a 3 phase 440V 50Hz power input. All models are designed for a standard 7 barg inlet pressure, at 35°C air inlet temperature (25°C ambient) and offer a constant 3°C dewpoint temperature delivery at all times. The new design heat exchangers incorporated give a very low differential pressure drop across the dryer, ensuring further energy savings.

Non-standard operating conditions that can be accommodated include inlet air pressures (4 – 16 barg), ambient air temperatures (10 – 50°C), inlet air temperatures (20 – 60°C), and air throughput up to 9988 cfm can also be accommodated on dryers manufactured to order. A high pressure range up to 50 barg can also be supplied. Dewpoint indicators are incorporated as standard (digital on larger models), together with an illuminated ‘Power On’ switch. An optional zero loss condensate drain can also be fitted. The larger models also have built-in filters to protect the heat exchangers from particulate build-up, so helping to protect from restriction and eliminating potential damage to the heat exchanger.

All products are designed to operate at minimal air consumption, achieved by minimising air pressure-drop and lowering the level of absorbed power, while the direct expansion technology of the equipment offers a constant 3°C dewpoint, preventing dewpoint spiking. More effective methods of operating efficiency, however, have resulted from the built-in engineering design, providing both good performance and high reliability. Additional energy savings are also achieved when the optional Hi-line ZLD autodrain unit is specified.