Displacement volume of an expansion vessel as a function of the pressure Features - trainer on heating systems and plumbing - function of an expansion vessel Learning objectives/experiments - function and operation of a diaphragm expansion vessel - displacement volume of an expansion vessel as a function of the pressure Specification [1] trainer on heating systems and plumbing [2] small compressor for pressure generation [3] measuring tank with scale [4] expansion vessel [5] manometer [6] ball valve in connecting pipe between measuring tank and expansion vessel [7] adjustable safety valve [8] pressure controller for air with overpressure protection [9] cutaway model of an expansion vessel Technical data Expansion vessel - volume: 2L - filling pressure: 1,4bar Measuring tank - volume: 3,75L - max. pressure: 2,5bar Compressor - power consumption: 65W - max. flow rate: 11,5L/min - max. pressure: 2bar - final vacuum: 240mbar Pressure controller for air, adjustable: 0,06...2bar Measuring ranges - pressure: 0...2,5bar 230V, 50Hz, 1 phase LxWxH: 1650x700x1850mm Weight: approx. 95kg