... station which include the expansion tank,circulation pump,probe(pressure,temperature),cleck valve,the temperature sensor and flowmeter and ... display.Waorking station:1.Expansion tank:5L volume,1Mpa maximum operation pressure (made in Italy)2.Circulation pump:WILO RS15/6 ... there phases,220V/50Hz (Made in German).3.Probe:Pressure*Temperature Probe*Check valve.4.Temperature sensor:There temperature ...