diaphragm metering pump Job number: 51-114782-1000 (3) independently variable stroke pump heads, each head capacity 1.2 gpm (301ltr/hr) discharge pressure max 22 bar @ 40 degrees C, min 3 bar @ 20 degrees C, suction pressure max 2.2 bar @ 40 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