Berluto · Pressure Regulators
Berluto DRV 850 low-pressure reducing valve, flanged, stainless steel
Low-pressure diaphragm reducing valve in stainless steel 1.4408 with PN 40 flanges DN 15 to DN 50, inlet up to 25 bar, outlet 0.2 to 2 bar, for aggressive liquids, air and neutral gases.
The DRV 850 is the low-pressure reducer of Berluto’s stainless steel flanged line, DN 15 to DN 50 with PN 40 flanges. Its enlarged control diaphragm holds outlet pressures between 0.2 and 2 bar accurately from an inlet of up to 25 bar. Body and bonnet are stainless steel 1.4408 with 1.4404 inner parts, for aggressive liquids, air and neutral gases.
Pressure compensation, continuous adjustment, an integrated strainer, a replaceable cartridge and G 1/4” gauge ports on both sides are standard. Kvs values run from 2.9 to 13 m³/h. NBR, EPDM (also with FDA conformity) or FKM seals cover −30 °C to +190 °C.
The threaded counterpart is the DRV 750; for the mbar range see the flanged DRV 840.
Selection data we need
Medium and temperature, inlet pressure, required outlet pressure, flow rate or Kvs, nominal size and flange standard, seal material.
Applications
- Outlet pressures below 2 bar with precise adjustment
- Aggressive water and other aggressive liquids
- Compressed air and neutral gases at higher flow rates
- Chemical, pharmaceutical and food plants (EPDM with FDA conformity)
