994-600 Series Air Dryer System

Wabtec Corporation Graham White Series Air Dryer System

The newest air dryer in the Wabtec line is the AirSmart™ 994-600 series. The AirSmart™ bring state of the art technology to mobile air drying. Patented architecture and control allow the dryer to purge and switch only based on total demand and inlet conditions. The result is a uniform outlet humidity, drastic reduction in valve cycles and air usage. The data collected is monitored and used for activity based maintenance, fault detection and display and health checks at start-up and on demand. Data can be accessed and downloaded through the programming or real time through the Ethernet connection.
Technical Specifications:

  • Operation: Twin tower, pressure swing regeneration, purge and tower cycle times based on air demand and inlet conditions
  • Desiccant Material: Activated Alumina - in bags
  • Pressure: Max system pressure - 150 psig (10.0 bar)
  • Temperature: -40 deg. F to +160 deg. F (-40 deg. C to +70 deg. C) Heater is included as a standard feature
  • Inlet Flow: 100 scfm nominal (2826 l/min)
  • Pressure Drop: 5 psig max (less coalescer) at 100 scfm @ 100 psig & 105 deg. F
  • Coalescing Filter Rating: 99.9% efficiency @ 0.3 microns
  • Voltage: 45 to 85 VDC (74 VDC nominal) - able to handle surges up to 138 VDC
  • Current: 0.1 A max @ 74 VDC (heater off) 5 A max @ 74 VDC (heater on)
  • Electrical Connection: Quick disconnect
  • Exposure: Resistant to direct water spray and damage from flying debris
  • Shock: 10 g in all 3 axes
  • Vibration: Meets or exceeds both GETS & EMD requirements for OEM products
  • Fatigue: NFPA T2.6.1-1974, cyclical category 3/90 @ 140 psig
  • EMI: Meets or exceeds both GETS & EMD requirements for OEM products
  • Size: 29" W x 24.22" H x 16.5" L 737 mm W x 615 mm H x 419 mm L
  • Weight: 155 lbs (45 kg) - Dryer only 75 lbs (34 kg) - Mounting bracket only
  • Other Features: Ethernet ready Program port for diagnostics Status and fault indicator Condition based maintenance Capability to control and heat two model 413 Auto Stop Drain Valves
  • Health monitoring -Triggers fault when dryer not operating properly -Microprocessor stores lifetime operation data -Microprocessor stores power and fault logs -Continuous monitoring of all sensor and reports and operational issues.
  • Memory: Auto-detect loco memory signal and self-configured
  • Options: Muffler Multi-Language Labels