The 995 Twin Tower Air Dryer System was designed to fit inside the D-4 compressor frame commonly used in the rail transit industry. Optional mounting brackets allow for customer-specific applications. Water in transit compressed air systems causes corrosion, washes away lubrication and freezes in cold weather.
Technical Specifications
| Operation | twin tower, pressure swing regeneration, desiccant dryer; 60 second cycle per tower (48 sec, 12 second repressurization) |
| Desiccant Material | Activated alumina |
| Pressure | 0-150 psig (0 to 10 bar) operating |
| Temperature | -40° F to +150° F (-40° C to + 65° C) with optional heaters |
| Inlet Flow | 28 SCFM nominal(791 l/min), 35 SCFM maximum (989 l/min) |
| Pressure Drop | not exceeding 5 psig (0.3 bar) at 28 SCFM (791 l/min) across entire assembly |
| Coalescer Filtration Rating | 99.9% efficiency @ 0.3 micron aerosol |
| Final Filter Rating | 25 micron MFP (Mean Flow Pore) size |
| Muffler | Prefilter exhausts |
| Operating Voltage | 24 to 45 VDC (other ranges available upon request) |
| Current | 0.3 A nom. @ 37.5 VDC 8.0 A nom. @ 37.5 VDC w/ two 150 Watt Heaters |
| Electrical Connections | Hard-wired through water-tight conduit fitting or optional electrical connector |
| Exposure | IP56 rating |
| Vibration | passed IEC 61373:1999; BS7608:1993 - 5g lateral, 3G vertical |
| Fatigue | NFPA T2.6.1-1974, cyclical category 3/90 |
| Hydrostatic | rated 55 bar |
| EMI/Electrical Protection: Conducted emissions | * EN 55011:1991 Conducted immunity: * ENV 50121-3-2:1996 Radiated emissions: * ENV 50121-3-2:1996 Electrostatic discharge: * ENV 50121-3-2: 1996 Surge voltage: * EN 50155 Transients: * EN 50155 Transient burst test: BRB/RIA 12 |
| Noise | < 70 dBA @ 5 meters (impulse rating) |
| Size | 20.5"(520mm) X 18.0"(457mm) X 10.5"(267mm) (L X H X D) approximately |
| Weight | 75 lbs. (34.02 kg) Approximately |
| Options | * Various mounting brackets available to suit installation * Pre-filter less Unloader and Check Valve |
Illustration may not depict actual product specifications.
