Siemens Pressure Balance Valve VPF53../VPF54.. Pressure Independent Control Valves (PICV) Technical Data Sheet With integrated differential pressure controller Valve body made of gray cast iron GJL-250 or nodular cast iron GJS-400 Available in the range from DN 50 to 200 Volumetric flow 15 to 280 m3 /h nominal, with presetting Download PDF Now