The Berluto DRV 372 / 373 / 378 series are diaphragm-controlled pressure reducers featuring a regulating spring, single seat, and inlet pressure compensation. The cartridge design allows for internal component replacement without removing the body. Suitable for water and neutral, non-sticky fluids, they can also be used with air or neutral gases when higher flow rates are required.
DRV 372 covers p2 0.5–4 bar, with p1 up to 40 bar for DN15–DN32 and up to 25 bar for DN40–DN50. DRV 373 covers DN15–DN32, p1 up to 16 bar, and p2 0.5–4 bar. DRV 378 is selected for higher downstream regulation, 0.5–9 bar, with p1 up to 40 bar for DN15–DN32 and up to 25 bar for DN40–DN50.
The body is made of red bronze CC499K. In the basic version, wetted parts are Hostaform C/POM and brass up to DN32, and brass from DN40. Seals are available in NBR, EPDM, or FPM. The HT version uses FPM and metallic internal parts for temperatures up to 190°C, but is not intended for steam.
The valve includes an integrated filter and dual gauge connection G 1/4” for outlet pressure indication. Installation can be in any position, with a preference for vertical. Selection requires p1, p2, flow rate, medium, temperature, DN, Kvs, elastomer, and thread type.
DRV 372 / 373 / 378
Pressure reducing valves of the series are diaphragm-controlled, spring-loaded pressure reducing valves and have inlet pressure compensation. The cartridge design allows easy replacement of the internal parts.
Nominal size DN 15 up to DN 50
Inlet pressure up to 40 bar
Outlet pressure from 0.5 up to 9 bar
Temperature range -30 °C to 190 °C
Technical data
CE-certification according to the European Pressure Equipment Directive is mandatory for numerous products and delivery areas. Other certificates, however, are certificates of individual quality, such as DVGW and DIN EN ISO 9001, which stands for the internal quality management system with its extensive functional and performance checks. The particularly strict regulations of the national rules and regulations guarantee the highest possible safety - especially when it comes to the reliability in your plant.
