Valve Construction
- Motorized 2-way butterfly valve.
- Available in wafer or lug body configurations.
- Mounted between flanges.
- Resilient seat for tight shutoff.
- Bidirectional flow direction.
Motorized Butterfly Valve
HERZ 4219 Motorized Butterfly Valve with ITQ Electric Actuator
HERZ 4219 Motorized Butterfly Valve — Wafer or Lug Type with ITQ Electric Actuator
The HERZ 4219 Motorized Butterfly Valve with ITQ Electric Actuator from HERZ Armaturen combines a 2-way butterfly valve with automated on/off or modulating control. Available in wafer and lug configurations, it is designed for HVAC and water systems requiring high flow capacity, low pressure drop, and dependable remote operation.
Manufactured by
HERZ Armaturen
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HERZ 4219 Motorized Butterfly Valve with ITQ Electric Actuator
Review the confirmed product information, including description, features, benefits, and applications.
The HERZ Motorized Butterfly Valve (4219 Series) from HERZ Armaturen integrates a precision-engineered butterfly valve with a high-torque ITQ electric actuator, providing automated on/off or modulating control for HVAC and water systems.
Available in wafer (ZF) and lug (AF) configurations, it provides reliable performance in applications requiring high flow capacity and low pressure drop.
Constructed with a corrosion-resistant body and tight sealing design, the valve supports dependable operation across diameters from DN50 to DN300. The ITQ actuator features an anodized aluminium housing, torque ratings up to 9000 Nm, IP67 or optional IP68 protection, and an ISO 5211 mounting interface.
Its modular design supports local and remote control, optional position feedback, and integration into building automation systems for demanding hydronic and industrial applications.
Valve Performance
- Available sizes: DN50–DN300.
- Flow coefficient (Kv): 91–9570 m³/h.
- Standard operating pressure: PN16.
- Operating temperature: -20°C to +110°C with a suitable glycol mixture.
- Suitable for water and water-glycol mixtures.
Actuator Power & Control
- Torque range: 100–9000 Nm.
- Power supply: 110/220 VAC 1Ph or 380/440 VAC 3Ph.
- Optional 24 VDC power supply.
- On/off or modulating control using 4–20 mA or 0–10 VDC signals.
- Duty cycle: 25–50% (S4).
- Travel angle: 90° ±5°.
Protection & Interface
- IP67 enclosure as standard.
- Optional IP68 or explosion-proof enclosure rated Ex d IIB T4.
- Auto-declutching handwheel for manual override.
- ISO 5211 mounting interface from F07 to F30.
- Optional potentiometer or transmitter position feedback.
- Actuator temperature range: -20°C to +70°C.
Automated Control
Reliable automated operation with precise electric actuation.
High Flow Capacity
Compact and durable valve design suitable for large flow rates.
High Torque Range
Actuator torque ratings support butterfly valve sizes up to DN300.
Protected Construction
Waterproof and corrosion-resistant construction supports extended service life.
Control System Integration
Compatible with common analogue and digital control signals.
Reduced Maintenance
IP67 or optional IP68 sealing and stainless-steel fasteners help reduce maintenance requirements.
Optional Configurations
Optional fail-safe functions, local control, position feedback, and explosion-proof configurations are available.
The HERZ 4219 Motorized Butterfly Valve with ITQ Electric Actuator is used in HVAC, water, and industrial systems requiring automated control of high water flow rates.
Centralized Heating & Cooling
Centralized HVAC systems with chilled-water and hot-water loops.
District Heating & Cooling
District heating and cooling plants requiring automated isolation or modulating flow control.
Water Treatment & Process Automation
Water treatment installations and automated water-process systems.
Flow Control & Energy Management
Industrial flow-control and energy-management systems.
BAS / BMS Integration
Integration into building automation systems for remote operation, feedback, and monitoring.
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