Circulating pumps training panel Series and parallel operation of two pumps Features - trainer on heating systems and plumbing - function of circulating pumps, series and parallel operation - in conjunction with other trainers in the HL 100 series, assembly of a complete heating system is possible Learning objectives/experiments - pump characteristics at varying speeds - determination of pipework characteristics and operating points - series operation of circulating pumps - parallel operation of circulating pumps - comparison of experiment and calculation - in conjunction with other training panels in the HL 100 series, it is possible to set up a complete heating system. Specification [1] series and parallel operation of 2 pumps [2] training panel can be changed to various operating modes using ball valves [3] 2 rotameters [4] pressure measurement with 6 Bourdon tube manometers [5] 1 bimetallic thermometer [6] water connections made using quick-release couplings Technical data 2 pumps - power consumption: 70W - max. flow rate: 60L/min - max. head: 4m Measuring ranges - flow rate: -- 1x 150...1600L/h -- 1x 400...4000L/h - temperature: 0...60°C - pressure: 0...2,5bar 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase 120V, 60Hz, 1 phase LxWxH: 1800x700x1780mm Weight: approx. 105kg