The Optimum Drain Assembly consists of a solid-state timer coupled to a solenoid valve. Instruction manual outlines installation procedure. The unit is suitable for ALL compressed air system components (aftercoolers, dryers, filters, pressure vessels and piping), regardless of their size or capacity - simply adjust the interval and discharge times to suit the particular compressed air system.

    Timer Manual TEST switch- Yes, micro switch
    Timer Environmental protection- IP 65, NEMA 4 when installed
    Valve Insulation- Higher grade H coils. Industry standard is grade F. Grade H offers superior resistance to higher temperature and longer life.
    Valve Environmental protection- IP 65 (NEMA ...