MAC solenoid valve 57 seriesThe MAC The MAC 67 Series is a 3-way balanced spool valve piloted by our 200 series (which
means this large 3-way valve can also be ordered with the 200 series Hazardous Location
version as a pilot - giving it the same standard). This is an extremely versatile valve: 1. It can
be converted for use in vacuum. 2. it can be changed from a Normally Closed function to a
Normally Open function by simply rotating a function plate between the pilot and main valve
bodies. 3. it can also be converted to a remote air operated valve by removing the solenoid
pilot assembly - just to name a few.