Wilkerson DE2 - Manual (Page 5)

3. Piping connections: For maximum flow, INLET and OUTLET piping should be schedule 40
pipe or equivalent I.D. tubing. DE0, DE1 and DE2 inlet and outlet porting is 1/4" female
NPT, purge porting is 1/8" female NPT.
NOTE
If purge air is required to be piped to a remote location, it is neces-
sary to use slightly oversized tubing to prevent back-pressure.
Restricting the purge flow can cause the dryer to malfunction.
4. Use Teflon tape or pipe sealant on threads. Check all air connections for leakage, using
soap solution prior to putting dryer into permanent service.
5. It is recommended that a bypass line with shut-off valves be installed to provide constant
air flow, should the dryer require servicing.
6. Always install a 5-micron particulate prefilter and a coalescing filter upstream to remove
entrained particulates, moisture and oil. A 0.5-micron afterfilter should be installed down-
stream to remove any desiccant dust that may migrate from the desiccant towers.
Factory Recommended Dryer Installation
Figure 3
D. Operating Specifications – The DE0, DE1, and DE2 series compact heatless dryers
can be sized to operate from 40 to 150 PSIG (2,7 to 10,3 bar).
1. The dryers must be operated in accordance with the factory sizing charts and original
customer requirements in order to achieve desired dewpoints. Inlet pressure, inlet
temperature, and outlet flow conditions are always specified when purchased.
2. Maximum inlet air temperature is 125°F (52°C).
3. Do not operate dryers in temperatures so low that freezing is a possibility.
E. Electrical Connections – Before wiring, check the dryer nameplate for electrical characteris-
tics. Standard electrical characteristics are 115 Volt, 50/60Hz operation. Models operating on
230 Volt, 50/60Hz operation are available.
Instruction Manual / DE0, DE1 and DE2
Wilkerson Compact Heatless Air Dryers
5-MICRON
PREFILTER
WITH AUTO
DRAIN
MICROALESCER
OPTIONAL
REGULATOR
SHUT-OFF
VALVE
AIR DRYER
WITH MOISTURE
INDICATOR
BYPASS LINE
BYPASS SHUT-OFF VALVE
SHUT-OFF
VALVE
MOISTURE
INDICATOR
0.5-MICRON
POSTFILTER
OPTIONAL
REGULATOR