PIETRO FIORENTINIREFLUX 819 +SILENCER DB/819 regulator
REFLUX 819 is a pilot‑operated balanced regulator for medium/high‑pressure systems. When fitted with DB/819, aerodynamic noise is attenuated without affecting accuracy. Kits cover main regulator soft parts, pilot loop seals and the silencer’s replaceable elements. Confirm DB/819 size versus body DN and flow.