Introduction - Domnick Hunter PNEUDRI MiDAS Manual De Instrucciones

INTRODUCTION

The PNEUDRI MiDAS range of compressed air dryers are designed to remove
moisture from compressed air by utilising state of the art technology to obtain
dewpoints of -40°C PDP and by appropriate de-rating -70°C PDP.
PNEUDRI MiDAS dryers have been designed to require minimal maintenance and
can be installed virtually anywhere.
The PNEUDRI MiDAS dryer consists of upper and lower head assemblies joined
together with an aluminium extrusion containing twin internal chambers. The upper
head assembly contains inlet and outlet manifolds, pre-filter and autodrain. The lower
head assembly contains two exhaust valves and a passive shuttle ball valve.
Contained in each internal chamber is a combination desiccant / after-filter cartridge.
During operation one chamber is on-line (drying) while the other is regenerating, using
the Pressure Swing Adsorption (PSA) process.
Pressure Swing Adsorption (PSA)
A small percentage of dried air is taken from the dryer outlet flow and is used to
regenerate the saturated chamber by expanding the dried air from line pressure to
atmospheric pressure. During this process, the moisture is physically removed from
the regenerating chamber and vented to atmosphere through the exhaust.
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