Timing Cycle
| MODEL | TOTAL CYCLE | REGENERATING | REPRESSURIZING |
GDHM3-12 | 90 Seconds with 45 Seconds Drying Per Tower | 33 Seconds | 12 Seconds |
GDHM16-50 | 180 Seconds with 90 Seconds Drying Per Tower | 66 Seconds | 24 Seconds |
GDHM Series
Dual Tower Desiccant Dryer
The GDHM Series desiccant air dryers use the proven “Pressure Swing Adsorption” (PSA) method for drying wet compressed air. This requires having two identical towers containing hygroscopic desiccant. The unique design of the GDHM Series allows for the dryer to start and stop with a compressor or point-of-use equipment to eliminate purge loss when off. The solid state memory feature allows the dryer to start where it left off in the drying cycle to prevent wet air downstream.
Dimensions
| Model | Inches | In | Out | Weight | In/Out | |||
| H | W | D | P | SCFM | SCFM | lbs | NPT | |
| GDHM3 | 13.8 | 7.3 | 5.3 | 8.4 | 3 | 2.2 | 8 | ⅜" |
| GDHM6 | 18.3 | 7.3 | 5.3 | 13 | 6 | 4.4 | 9 | ⅜" |
| GDHM9 | 17.3 | 7.3 | 5.3 | 12.0 | 9 | 6.6 | 10 | ⅜" |
| GDHM12 | 20.1 | 7.3 | 5.3 | 14.9 | 12 | 8.8 | 11 | ⅜" |
| GDHM16 | 33 | 9.5 | 6.6 | 20.7 | 16 | 12.6 | 29 | ½" |
| GDHM25 | 41.9 | 9.5 | 6.6 | 29.5 | 25 | 19.6 | 34 | ½" |
| GDHM35 | 39.3 | 10 | 7.1 | 33.4 | 35 | 27.4 | 59 | ½" |
| GDHM50 | 46.3 | 10 | 7.1 | 33.4 | 50 | 39.2 | 65 | ½" |
Standard flows (SCFM) at 100 psig and 100
Correction Factors: 125 psi = 1.22, 150 psi = 1.44
Note: Inlet and outlet filtration required for proper dryer performance.
Voltage: 115/1/50/60 or 230/1/50/60
Maximum Inlet Temperature: 120° F
Minimum Ambient Temperature: 32° F
Maximum Inlet Pressure: 150 psig
Inlet Filtration Recommended: 5 micron and .01 micron (Coalescing)
Inlet Filtration Required: .01 micron (Coalescing)
Outlet Filtration Recommended: 1 micron (Particulate)°F inlet with -40° F pressure dew point.
Consult factory for -100° F dew point and performance at other inlet pressures (50-150 psi),or inlet temperatures above 100° F.
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