
HERZ Differential Pressure Controller – Cast Iron Body (F 4007 Series)
Flanged differential pressure controller maintaining constant system pressure balance.
The HERZ STRÖMAX 4017 (FODRV) from HERZ Armaturen is a double regulating valve with an integral fixed orifice plate, designed for precise flow measurement and system balancing in small to medium hydronic networks.
Made from dezincification-resistant brass (CW612N), it provides durability and corrosion resistance. The valve integrates two test points for differential pressure measurement and features a digital preset handwheel for accurate and secure adjustment. Its compact design and threaded connections allow easy installation across heating, cooling, or domestic water applications.

Flanged differential pressure controller maintaining constant system pressure balance.

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