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Item Number AutoDrainer, Timed Blowdown for Gaseous Systems - AutoDrainer

The Colton 'AUTODRAINER' is a 3/8" npt brass solenoid valve controlled by a solid state timer that has an adjustable interval of 0.5 to 45 minutes and an adjustable discharge time of 0.5 to 10 seconds. Designed for compressed air systems to 250 psig at temperatures up to 285 deg. F.

  • Solid-state timer for long reliable service
  • Adjustable interval and discharge times
  • Self-cleaning valve reduces need for maintenance
  • LED indicators show operational status
  • Test button for maintenance check
  • UL and CSA approved
  • Standard Voltage: 115V, 60Hz
  • 220/240V, 50Hz
  • Valve: 2-way, normally closed
  • Ambient Range: 14 to 120 deg. F.
  • Electrical Connection: DIN 46242
  • Valve Coefficient (cv): 0.12
Optional Brass 'FilterStop'
  • Compact combination ball valve and strainer specifically designed for use with the AutoDrainer.

Unit of Measure: Imperial Metric Both



Solid-state construction

Status Indication

Power ‘ON’

Interval Time

0.5 to 45 min

Discharge Time

0.5 to 10 s

Electrical Connection

DIN 46242

Connector Type

4 Position


Class H 350°F


IP65 including connector (conforms to Nema 4)

Standard Voltages

220/240V, 50 Hz 115V 60 Hz

Valve Type

2-way, normally closed

Body Material


Seal Material


Spring, Tube, Plunger Material

Stainless Steel

Pressure Range

0 to 250 psi

Temperature Range (Fluid)

14 to 285 ºF

Temperature (Ambient)

14 to 120 ºF


Air, gases, water, oil, etc ..


Not Reguired

Valve Coefficent (Cv)



·  Timed Blowdown for Gaseous Systems - AutoDrainer - Hook-up


AUTODRAINER Series - Product Data Bulletin
(PDF, 146KB)