diaphragm metering pump, Job number: 51-114782-2000 flange mounted motor (3) independently variable stroke pump heads, each head capacity 1.2 gpm 40 degrees C, min 3 bar @ 20 degrees C, min 2 bar @ 20 degrees C, plungers 36mm diameter, stroke frequency 127 ltr/min, max stroke length 60mm, each head with 2-1" openings