HEATLESS TYPE AIR DRYER

HOW IT WORKS
 
The contaminated compressed air is made to pass thru Prefilter PF (for removal of solids & liquids) and Oil Removal Filter ORF (for removal of oil vapour) before entering Tower A1 thru a 3-way valve where it is dried by the adsorbent. Dry air exits the Dryer thru the After filter AF (where fine particles, if any are trapped) for use. A part (10 - 15%) of the dry air is expanded in the Purge Control Valve (PCV), passed thru Tower A2 to regenerate the adsorbent and exhausted out of its Purge Exhaust Valve (PEV) thru a Silencer (S).

 Prior to reversal of functions of Towers A1 & A2, PEV of Tower A2 is closed and its pressure slowly rises and equalizes with pressure of Tower A 1. The reversal is then effected and Tower A2 comes under adsorption & Tower A1 is under regeneration. This cyclic operation is then repeated continuously & automatically thru a sequential control timer.

 FEATURES

. Pressure equalization - ensures dry air supply is continuous and at constant pressure.
. Electronic Timer - Highly precise and fail-safe with excellent repeatability
. Low Dew Point - Constant atmospheric dew point of - 40 C or below.
. Instant dry air availability.
. Easy to install & operate, requiring very few, low-cost spares.
. Low Power Consumption - Approximately 50 Watts only.
. Equipped with Silencers - low noise level.