
HERZ Cast Iron 3-Way Control Valve (F4037 Series)
Cast iron 3-way flanged valve for mixing and diverting in large hydronic systems
The HERZ DZR SMART PICV (4006/4206 SMART Series) from HERZ Armaturen is a pressure-independent balancing and control valve designed for precision hydronic regulation in heating and cooling systems. It combines a control valve, balancing function, and differential pressure control in a compact DZR brass housing for long-term corrosion resistance.

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

Motorized butterfly valve with ITQ electric actuator for automated HVAC and water control

Flanged cast iron swing check valve for water and HVAC systems up to PN16.