Van Air Systems MHL3-MHL50 - Manual (Page 5)

Van Air Systems MHL-Series Desiccant Air Dryer Operations and Maintenance Manual
Page 5
4.3 PIPING AND CONNECTIONS
Inlet and outlet piping should be schedule 40 pipe or equivalent
I.D. tubing. See specification chart for inlet/outlet NPT thread
size. All piping should be deburred and threaded to a proper
depth and length before installation. Threads should be
inspected for cleanliness and depth of cut. Good quality pipe
compound or Teflon tape should be used in the makeup of
joints to ensure a good, airtight fit of piping components.
NOTE ON INLET PIPING AND
PIPE JOINTS: Make sure piping is
clean inside. Apply pipe thread
sealant sparingly to the male
threads of fittings, keeping the
sealant back from the first two
threads. Contamination getting
into inlet shuttle valve could cause
dryer to malfunction.
Install a pipe union at the inlet and outlet ports for easy
disconnection prior to tower replacement.
NOTE: If purge air is required to
be piped to a remote location, it is
necessary to use oversized tubing
or piping to prevent back-pressure.
Restricting the purge flow can
cause the dryer to malfunction.
It is recommended that a bypass line with shut-off valves be
installed to provide constant air flow to the system should the
dryer require servicing.
4.4
REQUIRED FILTERS
Always install a 0.01 micron coalescing prefilter with automatic
drain before dryer to remove entrained particulates, liquid
moisture and oil which can cause damage to the desiccant
beds. A 1.0 micron particulate afterfilter should be installed
after the dryer to remove any desiccant dust that may migrate
from the desiccant beds.
Pre-Filter After-Filter
0.01 Micron Coalescing 1.0 Micron Particulate
Filter F200-25-3/8-C-AD-PD6
Replacement Element E200-15/25-C
Filter F200-25-3/8-C-AD-PD6
Replacement Element. E200-15/25-C
Filter F200-25-3/8-C-AD-PD6
Replacement Element E200-15/25-C
Filter F200-25-3/8-C-AD-PD6
Replacement Element. E200-15/25-C
Filter F200-25-1/2-C-AD-PD6
Replacement Element E200-15/25-C
Filter F200-25-1/2-C-AD-PD6
Replacement Element E200-15/25-C
Filter F200-55-1/2-C-AD-PD6
Replacement Element E200-55-C
MHL25
MHL35
MHL6
MHL9
MHL12
MHL16
Recommended Filters
For
Model
F200-25-3/8-RB-MD-PD6
E200-15/25-RB
F200-25-3/8-RB-MD-PD6
E200-15/25-RB
F200-25-3/8-RB-MD-PD6
E200-15/25-RB
F200-25-3/8-RB-MD-PD6
E200-15/25-RB
E200-15/25-RB
F200-25-1/2-RB-MD-PD6
E200-15/25-RB
F200-55-1/2-RB-MD-PD6
E200-55-RB
F200-25-1/2-RB-MD-PD6
MHL3
Filter F200-55-1/2-C-AD-PD6
Replacement Element E200-55-C
MHL50
F200-55-1/2-RB-MD-PD6
E200-55-RB