Back pressure regulator UV3.5 DN20 Connection type Flange EN 1092-1/11 B1 /PN 40 Nominal pressure PN25 Pressure range 4-12 bar kvs-value 0,5 m3/h Body material Stainless steel Elastomer material Metallisch / FKM Options Leakage line connection 1/8"; Order-Code UV3.5-20-FA04-25-D070-0,5-V1-YF-E79 Article number 6193366UA-FM