Berluto · Pressure Regulators
Berluto DRV 672 / 678 wide-range pressure reducing valve, flanged DN 65 – 150
Large wide-range diaphragm reducing valve in red bronze with PN 16 or PN 25 flanges DN 65 to DN 150, inlet up to 25 bar, outlet 0.5 to 4 bar (672) or 0.5 to 9 bar (678), Kvs up to 210 m³/h, for water, neutral liquids, air and neutral gases.
The DRV 672 / 678 is the wide-range version of Berluto’s large flanged 6xx reducer, DN 65 to DN 150 in red bronze with a cast iron bonnet. A larger diaphragm and softer springs allow outlet pressures from 0.5 bar with up to 25 bar inlet: the 672 covers 0.5 to 4 bar, the 678 0.5 to 9 bar. From DN 100 each size is offered with PN 16 or PN 25 flanges.
Inlet pressure compensation keeps the outlet stable, the inner parts are a replaceable cartridge and gauge ports G 1/4” sit on both sides. Kvs values run from 48 to 210 m³/h. Standard seals are NBR or EPDM; the high-temperature version with EPDM or FKM seals is rated to 190 °C.
Selection data we need
Medium and temperature, minimum and maximum inlet pressure, required outlet pressure, flow rate or Kvs, nominal size and flange rating (PN 16 or PN 25), seal material.
Applications
- Large water lines needing a low outlet pressure
- Large compressed air and gas lines
- Distribution networks and building services risers
- Industrial utilities
