AFD-510 Gas Distribution Panel


The Apex AFD-510 Gas Distribution Panel (formally called Flow Drawer) is designed to be an easy, convenient, and compact way to control the flow of both stack and calibration gases.

This new panel can flow gas to either the analyzer bank (direct calibrations) or the probe (system calibrations), and has both automatic and manual controls.

This unit has been designed with simplicity in mind. It has the same common solenoids and a simplified wiring protocol.

The calibration gas in use is identified by a LED along with which mode you are in and if you are sampling or calibrating.

During sampling mode all solenoids are at ?rest”, greatly extending the life of the unit.

SKU: AFD-510 Category:

Note: The images shown are for illustration purposes only and may not be an exact representation of the product.



  • 11 calibration gas channels (including zero and span)
  • 5 output or analyzer channels
  • 8 valved rotometers for fine flow control and adjustment
    • 5 analyzer rotometers
    • 1 vent rotometer
    • 1 probe calibration
    • 1 sample flow rotometer
  • 19-inch rack-mountable
  • Designed for easy maintenance and repair
  • Manual or automatic operation


  • Input cal-gas channels:
    • Flowmeter standard:
      • Sample 0-10 LPM
      • Vent 0-10 LPM
  • Output gas channels:
    • Flowmeter:
      • 0.2-2.5 LPM
  • Voltage: 110.220 VAC at 50/60 Hz
  • Power: 25 Watts
  • Mounting dimensions: 4U, 19-inch rack-mount, 7-inch height x 19-inch width x 18-inch depth
  • Weight: approximately 24 lbs
  • Pressure gauge: 0-15 psi
  • Connections: 1/4 inch stainless steel tube union

Additional information

Weight 40 lbs
Dimensions 25 × 17 × 16 in