
HERZ Differential Pressure Controller – Cast Iron Body (F 4007 Series)
Flanged differential pressure controller maintaining constant system pressure balance.
The HERZ HVPRVF Ductile Iron Pressure Reducing Valve from HERZ Armaturen is engineered for high-performance pressure management in water distribution networks. Designed for stable outlet pressure regardless of inlet fluctuations, it features a nylon-reinforced EPDM diaphragm and stainless-steel internals for superior durability.
The pilot-operated design ensures precise control and long service life under demanding conditions.

Flanged differential pressure controller maintaining constant system pressure balance.

Flanged cast iron double regulating and commissioning valve for hydronic balancing in large HVAC networks

Forged brass strainer with stainless-steel mesh for protecting heating and water systems from debris

HERZ Nickel-plated brass 2-way thermostatic control valve