
HERZ Differential Pressure Controller – Cast Iron Body (F 4007 Series)
Flanged differential pressure controller maintaining constant system pressure balance.
The HERZ TS-90 Brass 2-Way Control Valve (models 7723, 7724, 7728) from HERZ Armaturen is engineered for efficient water heating systems. Manufactured from nickel-plated brass and tested under EN 215, it guarantees reliability, tight sealing, and superior temperature control.
The valve’s O-ring chamber spindle seal allows maintenance or replacement under system pressure, significantly reducing downtime. Compatible with HERZ thermostatic heads and handwheels, it enables flexible installation for both one- and two-pipe systems. Available in straight, angle, and reverse-angle configurations, the valve features both “F” and “D” dimensional series for universal adaptability.

Flanged differential pressure controller maintaining constant system pressure balance.

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