AQUA HC997 is multifunction solenoid driven dosing pump with constant and proportional dosing with push buttons interface and digital LCD display for programming. General Specifications: LCD Display with Backlight 5 pushbutton interface Constant Mode: flow rate, time, quantity, cyclic Proportional Mode: 4-20mA input, pulse input, PPM Time Mode: Daily or Weekly Alarm: Level & Flow Relay output Maximum Flow 14 l/hr @ 0 bar Maximum Pressure 20 bar @ 2 l/hr Tube Connection Size 4mm x 6mm Power Supply 230VAC ON / OFF Switch Level Input (pump interlock) Wall & Bench Mounting Kit IP65 Rating Wetted Parts: Pump Head PVDF Ball Valves PTFE Valve Body PVDF Fittings PVDF Injection Valve PVDF, Hastelloy, PTFE Foot Valve PVDF Seals Viton or EPDM