VVF529.50K 2-port valve, flanged connections, PN25, nodular cast iron, DN50, kvs = 31 m3/h

Key data to replacement product: VVF53.50-40K, 2-port valve, flanged connections, PN25, nodular cast iron, DN50, kvs = 40 m3/h

Info: Replace sealing gland with a medium temperature below -5°C (stock number 4 284 8806 0). Order stem heating ASZ6.6 additionally with media below 0°C.