Hankison HTA Series high temperature afterfilters are designed to hold a large amount of desiccant fines without plugging. The result is long cartridge life, even when installed downstream of heated type dryers using highly friable desiccant.
Compressed air leaves a desiccant dryer containing dust concentrations typically in the range of up to 0.05ppm by weight in heatless type dryers and up to 5 ppm by weight in heated type dryers. Particle size ranges from 200 microns to about 1 micron. This desiccant laden compressed air enters the filter housing where a reduction in air velocity and a sharp change of direction cause particles in the range of 200 to 20 microns to drop to the bottom of the housing.
High dust loading capacity
Long cartridge life
Good for temperatures to 450°F (232°C)
Removes all solid particles one micron and larger
Theory of Operation
Three Stage Filtration
Stage 1: Gravitational Setting
Compressed air leaves a desiccant dryer containing dust concentrations typically in the range of up to 0.05 ppm by weight in heatless type dryers and up to 5 ppm by weight in heated type dryers. Particle size ranges from 200 microns to about 1 micron. This desiccant laden compressed air enters the filter housing where a reduction in air velocity and a sharp change of direction cause particles in the range of 200 to 20 microns to drop to the bottom of the housing.
Stage 2: Surface Filtration
The air stream then enters the outside of the filter cartridge and flows through layers of glass fabric cloth. Small diameter fibers, which form a web in the openings between thread strands, cause a dust layer to form as dust bridges the pores. Dust continues to collect on the outside of the cloth as separate loose particles. The voids between these particles form pores and flow-passages and become an efficient filter in itself.
As the dust bed continues to thicken it reaches a point where outer layers of dust shed off the cartridge into the bottom of the housing.
Stage 3: In-Depth Filtration
Air next travels through a multi-layer graded in-depth filter media where all remaining fines one micron and larger are captured.
A final wrap of glass fabric cloth prevents fiber migration.
Specifications
Model
Maximum Flow @ 100 psig (6.7 barg)
Housing Type
MWP (1) @ 450°F (232°C)
In / Out Connection
Replacement Cartridge No.
Quantity Required
scfm
nm3/h
psig
barg
in
HTA100
100
170
Head/Bowl
250
17.6
1" NPT
0740-1
1
HTA200
200
340
Head/Bowl
250
17.6
1" NPT
0740-2
1
HTA400
400
680
Pressure Vessel
165
11.6
3" NPT
0740-3
1
HTA600
600
1019
Pressure Vessel
165
11.6
3" NPT
0740-4
1
HTA1200
1200
2039
Pressure Vessel
165
11.6
3" NPT
0740-4
2
HTA1800
1800
3058
Pressure Vessel
165
11.6
3" NPT
0740-4
3
HTA2400
2400
4078
Pressure Vessel
165
11.6
4" ANSI FLG
0740-4
4
HTA3000
3000
5097
Pressure Vessel
165
11.6
4" ANSI FLG
0740-4
5
HTA4800
4800
8155
Pressure Vessel
165
11.6
6" ANSI FLG
0740-4
8
HTA6600
6600
11213
Pressure Vessel
165
11.6
6" ANSI FLG
0740-4
11
HTA8400
8400
14272
Pressure Vessel
165
11.6
6" ANSI FLG
0740-4
14
HTA11400
11400
19369
Pressure Vessel
165
11.6
8" ANSI FLG
0740-4
19
1 Units with higher MWP are available; contact factory. Model HTA1200 and larger are ASME code constructed and stamped.
Pressure drop: At rated flow conditions pressure drop will be less than 1 psig (0.07 barg). Pressure drop will increase only as the filter cartridges become loaded with solid particles.
Filter cartridge replacement: Filter cartridges should be replaced when pressure drop across the cartridge exceed 10 psig (0.7 barg).
Global (EN)
