COMBO Electronic timer drain with integrated strainer

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The COMBO timer controlled condensate drain combines an adjustable electronic timer controlled drain, a ball valve and a mesh strainer into one compact easy to install package. Suitable for any flow range and pressure up to 230 PSI, the COMBO is perfect for virtually any compressed air application, especially those with solid particulate contaminants.

With a test button, LED on/off indication and a full serviceable direct acting valve, the COMBO offers affordable, reliable condensate management without the need to install additional valves and strainers. Use it on any compressor, receiver, filter or refrigerated dryer.

The COMBO saves installation time and protects against large particles found in condensate, thanks to the integrated ball valve and strainer. The unit can be shut off from the compressed air system, enabling easy and safe work to be carried out.

The 115VAC version of this drain is supplied with a 6 ft. power cord with plug and the 230VAC version is supplied with a 7 ft. power cord.



Integrated mesh strainer, offering valve and orifice protection from larger particles found in condensate.


Integrated shut off valve, offering easy shut off of the valve for routine maintenance.


Dual inlet (1/2" and 1/4"), offering you installation flexibility.


Maximum compressor capacity Any size
Pressure range 0 - 230 PSI (higher pressure available, see OPTIMUM-HP-S
Supply voltage options 12 - 380 VAC/DC 50/60Hz. (please indicate)
Medium temperature 34 - 131 °F
Ambient temperature 34 - 131 °F
Timer cycle range (On / Off) 0.5 - 10 seconds / 0.5 - 45 minutes
Timer PCB SMD technology, ensuring consistency in production
Timer cycle indication Bright LED illumination
TEST feature Yes
Valve type 2/2 way, direct acting
Valve orifice 4 mm
Valve seals FPM
Inlet/outlet connections 1/4" (F) & 1/2" (M) NPT / 1/2" NPT
Inlet connection height 0.4"
Serviceable valve Yes
Valve housing material Brass (stainless steel available, see OPTIMUM)
Power connection DIN 43650-A
Environmental protection NEMA4 (IP65)
California Proposition 65 See manual