995 Twin Tower Air Dryer System

wabtec westinghouse air brake 995 Twin Tower Air Dryer System

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