| The Metering Pump.... -—Metering Pump Basic Components. Metering Pump Characteristics Capacity and Pressure Capabilities Chart........3 Liquid End Designs..........................4 Packed Plunger...........................4 -Disc Diaphragm..........................5 Mechanically Actuated Diaphragm............6 Metallic Diaphragm and Critical Service Head... 7 High Performance Diaphragm - Advanced Liquid End Design...................8 —Metering Pump Drive Mechanisms.............10 |