Van
Air HP Series heated purge regenerative compressed air dryers
are designed to protect pneumatic equipment and processes
from the harmful effects of moisture within air lines. Our
HP Series compressed air dryers provide a low -40° F/C
pressure dew point for superior air line moisture protection
while offering the efficiency of convection-heated desiccant
regeneration with minimal purge air. These factors, along
with the high flow capabilities of the HP Series compressed
air dryer, make for an ideal dryer for use in general manufacturing
and process industry applications.
The
HP Series heated regenerative air dryer requires no overhead
clearance to replace the heating element since it is located
outside of the dryer vessel. Our HP Series compressed air
dryers incorporate a heatless back-up mode to keep the dryer
on stream if the heating element requires service. This
prevents loss of production in the event of heater failure
or maintenance.
The
externally located heating element of the HP Series compressed
air dryer also provides an extra measure of safety compared
to that of internally heated air dryers. The external heater
protects against overheating and other physical damage to
the desiccant. Therefore, not only does the external heater
provide additional safety, but can also extend the life
of the drying system.
Wet compressed air enters the inlet valve at the bottom
of the unit and is dried as it flows upward through a bed
of adsorbent desiccant. Dry air exits the outlet valve at
the top of the dryer. A small portion of the outlet air
is redirected through the external heater and downward through
the offstream tower to regenerate the desiccant. Wet air
is exhausted through the purge valve. The eight-hour NEMA
cycle includes four hours of drying, three hours of heating
and one hour of cooling per tower.
Constructed
and tested to the most demanding standards, our HP Series
externally heated regenerative compressed air dryers are
built and tested at our facility located in Lake City, PA.
All HP Series desiccant vessels are ASME certified and utilize
our patented Interlock valve logic. The Interlock valve
used on all HP Series compressed air dryers ensures the
most reliable tower cycling on the market.
•
Isolated External Heater
Provides an extra moisture of safety. Easy to service with
the heating element outside of the vessels. No overhead
clearance required. Distribution of heat throughout the
desiccant bed optimizes dryer performance and prolongs desiccant
life.
•
Interlock Logic Valve Control
Patented valve control for the most reliable tower cycling.
Each phase of the drying cycle must be completed before
the next can begin. Protects against loss of flow or pressure
because the offstream tower is fully repressurized before
air flow is redirected to it and a tower can only depressurize
after the inlet transfer valve is fully seated.
•
Heatless Back-Up Mode
Switch to this mode and keep the dryer on stream while the
heater is being serviced. Prevents loss of production in
the event of heater failure or maintenance.
Dimensions and Specifications - Inches, Pounds,
and SCFM |
| Model |
Rated
Flow
(SCFM) |
Avg.
Purge
Flow |
Height |
Width |
Depth |
Heater
(KW) |
Inlet
/ Outlet
(FLG) |
Desiccant1
Weight
per Tower |
Total
Weight |
|
HP-150 |
150 |
12 |
82 |
55 |
45 |
2.5 |
1 1/2 |
116 |
902 |
|
HP-250 |
250 |
20 |
91 |
57 |
45 |
4.5 |
1 1/2 |
194 |
1148 |
|
HP-375 |
375 |
30 |
89 |
60 |
45 |
6.5 |
1 1/2 |
290 |
1480 |
|
HP-500 |
500 |
40 |
93 |
64 |
45 |
8.5 |
1 1/2 |
388 |
1875 |
|
HP-650 |
650 |
52 |
101 |
70 |
48 |
11 |
2 1/2 |
513 |
2325 |
|
HP-800 |
800 |
64 |
93 |
74 |
50 |
14 |
2 1/2 |
625 |
2950 |
|
HP-1000 |
1000 |
80 |
97 |
75 |
57 |
17 |
2 1/2 |
775 |
3725 |
|
HP-1250 |
1250 |
100 |
98 |
80 |
53 |
21.5 |
2 1/2 |
963 |
4025 |
|
HP-1500 |
1500 |
120 |
94 |
90 |
64 |
26 |
3 |
1150 |
4800 |
|
HP-1750 |
1750 |
140 |
104 |
90 |
64 |
30 |
3 |
1363 |
5475 |
|
HP-2000 |
2000 |
160 |
114 |
90 |
64 |
34.5 |
3 |
1550 |
6100 |
|
HP-2500 |
2500 |
200 |
Contact
Factory |
43 |
4 |
Contact
Factory |
|
HP-3000 |
3000 |
240 |
51.5 |
4 |
|
HP-4000 |
4000 |
320 |
69 |
6 |
|
HP-5000 |
5000 |
400 |
86 |
6 |
|
1
For total desiccant weight, multiply by two.
• Rated flows based on 100 PSIG, 100° F inlet
and 100% RH. Consult factory for other conditions.
• Desiccant shipped installed on HP-150 through
HP-500. Desiccant shipped separately on larger units.
• Due to continuous improvement, dimensions and
specifications may change without notice.
• Request certified drawing for pre-piping.
|
Filtration Recommendations
Lubricated Compressors - Dryer must
be equipped with proper Van Air pre-filters. These filters
must be drained and maintained as specified. Desiccant
beds should be checked periodically and replaced if
contamination has occurred. Failure to do so may result
in hazardous operating conditions and will void the
warranty. An after-filter should be installed downstream
of the dryer to prevent desiccant particle migration.
Non-lubricated
Compressors - A particulate or coalescing
pre-filter is recommended to prevent pipe scale and
dust from fouling the dryer. An after-filter should
be installed downstream of the dryer to prevent desiccant
particle migration.
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