Berluto · Pressure Regulators
Berluto DRV 732-D / 738-D steam pressure reducing valve, stainless steel
Piston-controlled pressure reducing valve for steam and hot water in stainless steel 1.4408, female thread G 1/2" to G 2" (or male thread R with the -D-R version), inlet up to 16 bar, outlet 2 to 5 bar (732-D) or 4 to 10 bar (738-D), PTFE / EPDM / FEPM seals up to 200 °C.
The DRV 732-D / 738-D is Berluto’s steam reducer for outlet pressures between 2 and 10 bar. It is piston controlled and soft-seated with PTFE and elastomer seals selected for hot service: PTFE / EPDM for steam up to 150 °C, PTFE / EPDM / FEPM for steam up to 200 °C. Body and bonnet are stainless steel 1.4408 with 1.4404 inner parts, which also suits hot water, condensate and aggressive liquids.
The 732-D sets 2 to 5 bar, the 738-D 4 to 10 bar, from up to 16 bar inlet with a minimum pressure difference of 0.3 bar. Sizes G 1/2” to G 2” give Kvs values from 3.6 to 14 m³/h. The inner assembly is a replaceable cartridge and gauge ports G 1/4” sit on both sides.
The -D-R version has male thread ISO 7 (R 1/2” to R 2”); its datasheet is attached below. For outlet pressures below 2 bar see the DRV 730-D, for flanged connections the DRV 832-D / 838-D.
Selection data we need
Medium (saturated steam, hot water), inlet pressure and temperature, required outlet pressure, steam or water flow rate, connection type (female G or male R) and size, and whether the 200 °C seal set is needed.
Applications
- Steam supply to process equipment, heat exchangers and sterilisers
- Hot water and condensate systems
- Aggressive liquids at elevated temperature
- Air and neutral gases at higher flow rates
