Berluto · Pressure Regulators
Berluto DRV 450 low-pressure reducing valve, male thread
Low-pressure diaphragm reducing valve in red bronze with male thread and union nuts R 1/2" to R 2 1/2", inlet up to 16 bar, outlet 0.2 to 2 bar, for water, neutral liquids, air and neutral gases.
The DRV 450 is the low-pressure reducer of Berluto’s male-thread 4xx series. Its enlarged diaphragm holds outlet pressures between 0.2 and 2 bar accurately from an inlet of up to 16 bar, and union nuts on both sides let the valve be removed without turning the pipe.
Seven sizes from R 1/2” to R 2 1/2” cover Kvs values from 2.9 to 17 m³/h. Pressure compensation, continuous adjustment, an integrated strainer, a replaceable cartridge and gauge ports on both sides are standard. NBR, EPDM (also with FDA conformity) or FKM seals cover −30 °C to +190 °C.
Selection data we need
Medium and temperature, inlet pressure, required outlet pressure, flow rate or Kvs, connection size, seal material.
Applications
- Outlet pressures below 2 bar with precise adjustment
- Water and neutral, non-sticky liquids
- Compressed air and neutral gases at higher flow rates
- Feed lines to low-pressure equipment

