Compact, reliable, without electricity needed
Designed for convenient point of use drying without the need for electrical power, membrane dryers utilize hollow fiber membranes to remove water vapor from compressed air. Permeable to water vapor but not air, the IDG series can achieve pressure dew points as low as -40°C (-40°F) and ISO 8573-1 moisture classes from 2 to 6. They have no moving parts, vibration, or heat discharge and contribute only a small amount of purge air to their operating environment. The AMD series is available as single units or conveniently assembled with necessary pre-filtration and optional pressure regulation.
These dryers are engineered for easy installation, operation and long term reliability. The only maintenance required is changing the prefilter cartridge twice a year. This semi-annual maintenance takes approximately 5 minutes.
The AMD Membrane Air Dryers are suitable for a wide variety of industrial plant applications as well as for commercial and laboratory applications. Multiple units can also be connected in parallel to achieve higher flow rates. For most dew point ratings, flow rates and operating pressures there’s an AMD Air Membrane Dryer that’s ideal for your application.
Typically the compressed air is first filtered with high-quality coalescing filter and activated carbon filter. These filters remove liquid water, oil and particulate from moist compressed air. The water vapor-laden air then passes through the center bore of hollow fibers in the membrane bundle. At the same time, a small portion of the dry air product is redirected along the outside surface of the fibers to sweep out the water vapor which has permeated the membrane.
The moisture-laden sweep gas is then vented to the atmosphere, and clean, dry air is supplied to the application. The drying power of the membrane is controlled by varying the compressed air flow rate and pressure. The AMD Membrane Air Dryer is designed to operate continuously, 24 hours per day, 7 days per week.
| Dew point range | +3 to -30 °C |
| Operating pressure | 13.8 barg (max) |
| Operating temperature | -23...65 °C |
| Pressure drop | 0.1 to 0.4 barg |
| Pre-filtration | 0.01 μm particle and 0.003 mg/m3 residual oil |
| Connection | 3/8” to 3/4” |
Models | Connection | Flow @ +3oC PDP | Flow @ -10oC PDP | Flow @ -20oC PDP | Flow @ -30oC PDP | ||||
Inlet | Outlet | Inlet | Outlet | Inlet | Outlet | Inlet | Outlet | ||
AMD120 | 3/8”BSPP | 14.0 | 12.2 | 10.4 | 8.6 | 6.8 | 5.4 | 4.3 | 3.6 |
AMD130 | 3/8” BSPP | 20.6 | 17.3 | 16.5 | 13.7 | 12.6 | 10.4 | 10.1 | 8.3 |
AMD220 | ½” BSPP | 30.6 | 26.3 | 22.7 | 18.7 | 14.4 | 11.9 | 29.3 | 7.5 |
AMD230 | ½” BSPP | 44.6 | 38.9 | 36.7 | 30.6 | 28.1 | 23.0 | 22.7 | 18.0 |
AMD320 | ½” BSPP | 61.5 | 53.3 | 46.0 | 38.5 | 29.9 | 24.5 | 19.0 | 15.5 |
AMD330 | ½” BSPP | 81.7 | 70.9 | 71.6 | 56.8 | 52.2 | 42.5 | 42.1 | 33.8 |
AMD420 | ¾” BSPP | 87.5 | 75.9 | 66.6 | 55.4 | 42.5 | 34.9 | 27.0 | 21.6 |
AMD430 | ¾” BSPP | 141.5 | 122.4 | 118.1 | 98.6 | 90.3 | 74.1 | 73.4 | 59.0 |
Purge Rate (% of inlet flow) | 14% | 16.9 | 18.7 | 20.7 | |||||
Flow Capacity in standard cubic meter – Inlet air @ 7 barg, 35°C, 100%RH
PDP = Pressure Dew Point
NPT threat connection is available upon request