Description
PPD-350 Series Portable Desiccant Compressed Air Dryers PPD 1000 – 1600 Operating Pressures Up to 350 psig
Whether a compressed air user wants to control the growth of micro-organisms (essential for direct and in-direct contact applications in the food, beverage & pharmaceutical industries), ensure air used for critical applications / instrumentation is free from water contamination or has external piping where low ambient temperature can cause condensation, adsorption dryers are the go to dryer technology.
There are many different adsorption dryer technologies available and whilst they all reduce water from the compressed air in the same way, they differ in the way they regenerate the desiccant material.
Advantages:
The simplest and most common method used to regenerate the adsorbent desiccant material is the ‘heatless’ method (so called as it does not use heat for desiccant regeneration).
Using a proportion of the clean, dry process air for regeneration, heatless dryers typically have the lowest capital costs of all adsorption dryer types (due to the simplicity of the heatless design).
Being very robust and having fewer components, they typically have the lowest maintenance cost of all the adsorption technologies.
Heatless dryers are available to suit all compressed air flow rates from small to large, whereas the more complicated regeneration methods are often only available for higher flow rates due to cost and complexity of the designs.
Advantages
- Comprehensive system design with two coalescing pre-filters, desiccant dryer and dry particulate after-filter ensures clean, dry air in accordance with ISO8573-1.
- Integrated air-cooled aftercooler with water separator package cools compressed air down to within 15°F of ambient temperature and removes bulk liquids.
- Industry leading Allen Bradley® programmable logic controller (PLC) installed in a NEMA 4X enclosure.
- Optional Advanced Allen Bradley® PLC includes dewpoint sensor, digital dewpoint display and communication via Modbus RS485 and ethernet.
- Heavy duty, draggable skid with lifting lugs and fork holes result in ease of transportation.
- Selectable cycle modes deliver a continuous dewpoint of -40°F with Standard Cycle or dewpoints as low as -100°F with Short Cycle.