Body & Connections
- Dezincification-resistant brass body manufactured from CW612N.
- BSP female threaded connections according to BS21.
- Available in nominal sizes from DN15 to DN50.
- Compact threaded design for hydronic installation.
Fixed Orifice Commissioning Valve
HERZ 4017M Fixed Orifice Commissioning Valve
STRÖMAX Series — DZR Brass PN20 Balancing Valve
HERZ 4017M Fixed Orifice Commissioning Valve from HERZ Armaturen is a double-regulating balancing valve with an integral fixed orifice for accurate differential-pressure measurement and flow adjustment in hydronic systems. Manufactured from dezincification-resistant brass, the valve features a digital preset handwheel, two measuring points, PN20 operating pressure, and threaded connections for reliable commissioning of heating and cooling distribution circuits.
Manufactured by
HERZ Armaturen
Technical Downloads
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HERZ 4017M Fixed Orifice Commissioning Valve
Review the confirmed product information, including construction, operating conditions, balancing performance, benefits, and hydronic-system applications.
HERZ 4017M Fixed Orifice Commissioning Valve from HERZ Armaturen is a double-regulating balancing valve designed for accurate flow measurement, presetting, and system balancing in small and medium hydronic networks.
The integral fixed orifice creates a defined differential pressure for flow measurement, while two test points support connection to compatible measuring instruments during commissioning and system verification.
Manufactured from dezincification-resistant CW612N brass, the valve supports corrosion-resistant operation in heating, cooling, domestic-water, and water-glycol applications. Female BSP threaded connections support compact installation across nominal sizes DN15 to DN50.
A digital preset handwheel with a locking function enables accurate and reproducible valve adjustment. The linear flow characteristic, PN20 pressure rating, and double O-ring spindle sealing support dependable long-term balancing performance.
Pressure & Temperature
- Nominal pressure rating: PN20.
- Maximum operating temperature up to 130°C.
- Maximum differential pressure when closed: 10 bar.
- Suitable for heating and cooling water circuits.
Flow Measurement & Balancing
- Integral fixed orifice for differential-pressure measurement.
- Linear flow characteristic.
- Two ¼-inch measuring and test points.
- Suitable for presetting, commissioning, and hydraulic balancing.
Sealing, Display & Media
- Double O-ring spindle sealing system.
- Digital preset handwheel with locking function.
- Suitable for water and water-glycol mixtures.
- Media requirements according to ÖNORM H5195 and VDI 2035.
High-Precision Balancing
The integral fixed orifice supports accurate differential-pressure measurement and controlled system flow adjustment.
Corrosion-Resistant Construction
DZR brass construction supports dependable operation in heating, cooling, domestic-water, and hydronic systems.
Repeatable Presetting
The digital handwheel enables clear and reproducible preset adjustment during commissioning and future system checks.
Secure Adjustment
The handwheel locking function helps retain the selected valve setting after the balancing procedure is completed.
Compact, Low-Maintenance Design
Threaded connections, compact construction, and double O-ring spindle sealing support straightforward installation and limited maintenance requirements.
Measurement Compatibility
Integrated test points support connection to compatible HERZ measuring instruments and commissioning accessories.
The HERZ 4017M is designed for hydronic systems requiring accurate commissioning, preset flow adjustment, and differential-pressure-based measurement across heating and cooling distribution circuits.
Heating Water Circuits
Heating distribution loops requiring controlled flow, system commissioning, and hydraulic balancing.
Chilled-Water Circuits
Cooling and chilled-water distribution circuits requiring measurable and reproducible flow adjustment.
Fan Coils, AHUs & Radiators
Commissioning and balancing of fan-coil units, air-handling-unit coils, radiators, and related terminal equipment.
Commercial & Residential Systems
Water-based hydronic systems in commercial and residential buildings requiring balanced system distribution.
Differential-Pressure Measurement
Flow measurement, commissioning, and balancing using the integral fixed orifice and two measuring points.
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