The Berluto DRV 672 and DRV 678 are direct-acting pressure reducers, featuring diaphragm control, adjustment spring, single seat, and inlet pressure compensation. They are utilized in larger DN applications where low to medium downstream pressure regulation is required for water or neutral fluids.
The body is made of red brass CC499K and the spring cap of cast iron. Wetted parts are brass and stainless steel V4A. Seals: NBR up to 100°C or EPDM up to 130°C. A -SW version is available for seawater, with media-resistant wetted parts.
Suitable for water and neutral, non-sticky fluids. Can be used in air and neutral gases when large flow rates are required. For potable or seawater, consider special DRV-6 or DRV-SW series. Not intended for steam applications.
DRV 672 is selected for regulation between 0.5–4 bar. DRV 678 covers 0.5–9 bar. Sizing requires p1, p2, flow rate, DN, PN flange, Kvs, temperature, medium, and sealing material.
DRV 672 / 678
Pressure reducing valves of the series are diaphragm-controlled, spring-loaded pressure reducing valves and have inlet pressure compensation. All sizes are available with flanges according to DIN, ANSI or JIS.
Nominal size DN 65 up to DN 150
Inlet pressure up to 16/ 25 bar
Outlet pressure from 0.5 to 9 bar
Temperature range -30°C to 130°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.
