Why you need a compressed air dryer

Compressed air is a vital source of energy for industry. Quality air treatment—particularly the removal of condensate—is often overlooked. When cooled, condensate will turn into water, damaging both the compressed air system and product or process. Sullair SRL Series refrigeration dryers remove condensate to achieve near perfectly dry compressed air. The benefits to you are less system downtime, reduced costs and maintenance and an improved finished product.

Key Features:

• Optimum dew point levels for the highest system performance

• Advanced patented designs

• Cycling control for increased energy savings*

• Energy efficient scroll compressor*

• Lowest total operating costs

• Lowest average pressure differential of 2.0 psig

• Environmentally friendly R407c refrigerant

• Zero air loss drain

• Optional communications package

Why a cycling dryer?

By choosing a dryer that matches power consumption to actual operating conditions, a significant amount of energy and energy cost can be saved.  The SRL Series multifunction Cycling Control* provides a versatile platform for user interface and precise dew point control. Cycling Control continually monitors the demand placed on the dryer. At conditions of low demand, the refrigerated compressor is cycled off to save energy. A formulated procedure continually adapts the operation of the dryer for optimum energy efficiency while minimizing the dew point spikes.

How It Works

The hot wet air enters the SRL Dryer, where it immediately passes through the air-to-air exchanger, which cools the incoming air with the exiting air. This precooled air then enters the evaporator, where it is further cooled by the refrigerant, to achieve the dew point temperature. Because of this cooling process, the condensate in the air has now become a liquid and is efficiently separated by the demister, then removed by the condensate drain.  The now dry but cold air passes back through the return side of the air-to-air exchanger, where it is heated up by the incoming air. This process not only saves energy by pre-cooling the inlet air, but also heats the exiting air to well above dew point and prevents sweating in the piping.