
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.

Cast iron 3-way flanged valve for mixing and diverting in large hydronic systems

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Flanged cast iron globe valve with non-rising spindle for shut off in large HVAC circuits.