HERZ 4002 / 4202 DZR Brass
Threaded differential pressure controller with 5–30 or 25–60 kPa setpoint and capillary, DN15–DN50.
MEP Product Category
Differential Pressure Control Valves (DPCVs)
Differential pressure controllers keep a constant differential pressure across risers and branches in heating and cooling systems, without auxiliary power. Explore HERZ DZR brass threaded and cast iron flanged controllers.
DZR Brass
Cast Iron
Threaded & Flanged
Self-Acting
Hydronic Balancing
Heating & Cooling
Hydronic Balancing
Available DPCVs
Browse HERZ 4002 / 4202 and F 4007 differential pressure controllers for riser and branch balancing in HVAC systems, from DN15 to DN200.
HERZ F 4007 Cast Iron
Flanged differential pressure controller with 10–40, 20–80 or 50–150 kPa ranges, PN16, DN50–DN200.