VWG42.10-0.25-0.4

Siemens VWG42.10-0.25-0.4 is a six-port control ball valve (DN10, G 1/2″) for reliable operation in heating, ventilation, and air conditioning systems (HVAC). It delivers dual flow coefficients kvs A = 0.25 m3/h and kvs B = 0.4 m3/h, for systems using heated or chilled water (with antifreeze) where precise flow regulation and tight shut-off are essential

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