siemens西门子 VVI47.25-10 VVI47.32-16 VVI47.40-25二通调节阀

· Bronze valve body CC491K (Rg5)
· DN 15…50
· kvs 2.5…40 m3/h
· Internally threaded connections Rp.. as to ISO 7-1
· Can be equipped with SBX…- electromotoric