A fully automatic, zero loss drain that requires no electricity. Translucent reservoir for visual assurance of operation. Ideal for Oil/Water Separators.


  • Large 24 oz. discharge capacity Ideal for most compressor installations
    Isolated trigger assembly Reliable design – unaffected by contaminants
    Low profile Fits in tight spots
    Non clogging Saves valuable air. Saves money
    Translucent reservoir Easy-to-see condensate level “Quick check”
    Full port drain valve Handles scale and rust without clogging
    Fully pneumatic No electricity required
    Automatic design Operates on demand
  • Condensate enters the drain through one of two inlet connections. As condensate is collected and the translucent reservoir fills, a stainless steel float mechanism rises. When the condensate reaches a design level, the float mechanism actuates an isolated magnetic trigger assembly. The trigger assembly directs control air to the valve actuator, which in turn opens a full-port drain valve.

    Condensate will then exit the unit. As the float drops, the trigger assembly closes the control air line and the valve actuator closes the ball valve. The drain is then returned to the collection mode.

  • Inlets (2) 3/4" NPT
    Outlet 1/2" NPT
    Power Clean, Dry Compressed Air 80 to 130 PSI
    Pressure 0 to 250 PSI
    Operating Temperature 32° to 180° F.
    Weight 17 lbs.
    Discharge 24 ounces per cycle
  •  pdf_logo.png  Download the Robo-Drain RD11 Brochure
    Download the Robo-Drain RD11 Installation Operating Manual
    Download the Robo-Drain RD11 Drawing