HERZ | NOOR SCIENTIFIC & TRADE

HERZ Digital Thermostat Series (H7711 / H7712 / H7713)

Mostafa Refaay — Sun, 09 Nov 2025 12:58:21 +0000

HERZ Digital Thermostat Series (H7711 / H7712 / H7713)

The HERZ Digital Thermostat Series from HERZ Armaturen offers a complete range of intelligent control solutions for heating, cooling, and ventilation systems. Available in modulating, on/off, and touch-pad variants, these thermostats ensure efficient temperature management, fan speed control, and valve actuation for 2-pipe or 4-pipe fan coil units. Designed for comfort, precision, and flexibility, the HERZ thermostats integrate seamlessly into residential, commercial, and industrial HVAC applications.

Models:

H7711: Modulating Thermostat (0–10 V / 4–20 mA control, RS485 optional)
H7712: Touch Pad ON-OFF Thermostat (with optional timer, 7-day programmable, or backlight)
H7713: Digital ON-OFF Thermostat (LCD display, optional IR remote, backlight)

Control Types: ON/OFF, 3-point, Modulating (0–10 V / 4–20 mA)
Voltage Supply:

H7711: 24 V AC ±10%
H7712 / H7713: AC 85–260 V, 50/60 Hz

Temperature Range:

Setpoint: 5°C–35°C (H7712/H7713), up to 99.5°C (H7711)
Accuracy: ±0.5°C to ±1°C

Fan Control: Manual or automatic 3-speed (Low/Med/High/Auto)
Display: Large LCD or Touchscreen with temperature, mode, and fan status
Functions:

Heating / Cooling / Ventilation / Auto modes
Low-temperature protection (anti-freeze mode)
Keypad lock and backlight options
Programmable timer and weekly schedule (H7712-T74)
RS485 Modbus communication (H7711N variants)
IR remote option (H7713R)

Sensor: NTC, internal or external selectable (H7711)
Housing: PC + ABS Flame Retardant, IP30 rated

Precise temperature control for optimized comfort and efficiency.
Multi-mode flexibility: manual, auto, and programmable options.
Seamless integration with HERZ motorized valves and actuators.
Energy savings through intelligent fan and valve modulation.
Universal voltage compatibility for flexible installation.
Elegant, compact design with modern LCD or touch interface.
Suitable for both new and retrofit HVAC systems.

Residential and commercial HVAC systems.
2-pipe or 4-pipe fan coil units.
Central heating and cooling systems.
Zone temperature control in offices and hotels.
Building management and automation systems.
VAV (Variable Air Volume) and damper control applications.
Energy-efficient building retrofits and modernization projects.

Other Products From HERZ Armaturen

HERZ Differential Pressure Controller – Cast Iron Body (F 4007 Series)

Flanged differential pressure controller maintaining constant system pressure balance.

HERZ DZR SMART (3 TEST POINTS) PIBCV

The HERZ DZR SMART PICV (4006/4206 SMART Series) with Three Test Points

HERZ DUCTILE IRON LUG TYPE LEVER OPERATED BUTTERFLY VALVE

Ductile iron lever-operated lug-type butterfly valve for HVAC and water applications.

HERZ CAST IRON SWING CHECK VALVE

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

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HERZ Electric Actuators Series (Thermo-Electric, Motoric, and Rotary Types)

Mostafa Refaay — Sun, 09 Nov 2025 12:54:04 +0000

HERZ Electric Actuators Series (Thermo-Electric, Motoric, and Rotary Types)

The HERZ Electric Actuator Series from HERZ Armaturen offers a complete portfolio of thermo-electric and motor-driven actuators for linear and rotary control valves up to DN 65 and beyond. Designed for on/off, 3-point, or modulating operation, these actuators deliver precision control, energy efficiency, and silent operation. With torque outputs up to 9000 Nm and linear forces up to 2500 N, the range covers all control and isolation requirements in modern heating, cooling, and water systems.

Control Types: ON/OFF, 3-point, and 0–10 V modulating control.
Voltage Options: 24 V AC/DC, 100–240 V AC, and 230 V AC.
Force/Torque Ratings:
- Linear actuators: 100 N – 2500 N.
- Rotary actuators: 5 Nm – 10 Nm.
- Heavy-duty actuators (ITQ series): up to 9000 Nm.
Movement Range: 5–40 mm stroke (linear) / 90° rotation (rotary).
Manual Override: Integrated or push-button disengagement.
Position Feedback: 0–10 V signal (available on modulating models).
Protection Class: IP 54 – IP 68 depending on model.
Operating Temperature: 0 °C – +80 °C (standard).
Housing: Fire-retardant or anodized aluminum enclosure.
Drive Interface: ISO 5211 (rotary) or M28 × 1.5 threaded (linear).
Certifications: CE, UL, EN 60730-1 / -2-14 compliance.
Maintenance: Fully maintenance-free design.

Precision control for both linear and rotary valve applications.
Energy-efficient performance with silent operation.
Flexible voltage and signal compatibility for system integration.
Robust, corrosion-resistant housing for industrial environments.
Manual override and visual position indication for maintenance ease.
Compatible with HERZ linear control valves, rotary valves, and butterfly valves.
Maintenance-free operation ensures long-term reliability.

HVAC control systems – for heating, cooling, and ventilation circuits.
Building automation – integrated zone and flow control.
Fan coil and terminal unit management.
District heating and chilled water systems.
Industrial fluid and process control.
Motorized ball, butterfly, and globe valve operation.
Energy-efficient hydronic balancing and modulation.

Other Products From HERZ Armaturen

HERZ BRONZE GATE VALVE

Bronze threaded gate valve for domestic, commercial, and industrial water systems

Herz DZR PICV Enhanced Flow

Herz DZR Pressure Independent Control Valve Enhanced Flow

HERZ Braided Flexible Metal Hose (HB 200 Series)

High-pressure stainless steel flexible connector with EPDM insulation and carbon steel ends.

HERZ Brass 3-Way Control Valve (Calis TS RD Series)

Compact brass thermostatic 3-way valve for automatic temperature control

The post HERZ Electric Actuators Series (Thermo-Electric, Motoric, and Rotary Types) first appeared on NOOR SCIENTIFIC & TRADE.

HERZ Pressure Reducing Valve – Ductile Iron (HVPRVF Series)

Mostafa Refaay — Sun, 09 Nov 2025 12:49:57 +0000

HERZ Pressure Reducing Valve – Ductile Iron (HVPRVF Series)

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.

Body: Ductile Iron, GJS 500-7.
Trim: Stainless Steel AISI 304/316.
Seat: Stainless Steel AISI 304/316.
Diaphragm: EPDM + Nylon Fabric.
Bush: Bronze C61900.
Pressure Rating: PN16 (PN25 optional).
Outlet Pressure Range: 1–10 bar.
Temperature Range: -10°C to +80°C.
End Connection: EN 1092-2 Flanged, PN16.
Standards: BS EN1074-5, BS EN12266-1, BS EN558-1.
Sizes Available: DN 50–DN 300.

Maintains stable downstream pressure under varying inlet conditions.
Reduces risk of water hammer and cavitation.
Corrosion-resistant materials for long operational life.
Simple maintenance with accessible components.
Reliable operation for high-capacity systems.

Municipal and industrial water distribution networks.
Irrigation and agricultural water control.
HVAC and building service systems.
Pressure management in fire protection systems.
Pumping stations and water treatment facilities.

Other Products From HERZ Armaturen

HERZ DZR BRASS GATE VALVE

DZR brass gate valve for high-corrosion environments in HVAC and plumbing systems

HERZ BRONZE STRAINER

Forged brass strainer with stainless-steel mesh for protecting heating and water systems from debris

HERZ Digital Thermostat Series (H7711 / H7712 / H7713)

Smart digital thermostats for precise temperature and fan control in HVAC and fan coil systems.

HERZ CAST IRON GATE VALVE

Flanged cast iron gate valve for shut-off applications in HVAC and water distribution systems

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HERZ Pressure Reducing Valve – Brass Diaphragm Type

Mostafa Refaay — Sun, 09 Nov 2025 12:46:27 +0000

HERZ Pressure Reducing Valve – Brass Diaphragm Type

The HERZ Brass Diaphragm Pressure Reducing Valve from HERZ Armaturen ensures consistent outlet pressure in domestic and light commercial water systems. Its diaphragm design provides stable performance, while the corrosion-resistant brass body and integrated plastic cap offer reliability and ease of adjustment.

Engineered for long service life and minimal maintenance, it ensures optimal flow control and protection for downstream installations.

Body Material: High-grade Brass.
Cap: Durable Plastic (ABS).
Diaphragm: Reinforced EPDM Rubber.
Pressure Rating: PN16.
Adjustable Outlet Pressure Range: Typically 1–6 bar (model-dependent).
Maximum Inlet Pressure: Up to 25 bar.
Temperature Range: 0°C to +80°C.
Connection Type: Threaded BSP (Female).
Compact, maintenance-friendly design.

Ensures stable water pressure and protects plumbing systems.
Easy manual pressure adjustment via top cap.
Corrosion and scale-resistant internal components.
Silent operation with minimal vibration.
Long-term reliability with no external power source required.

Domestic water supply systems.
Commercial plumbing and sanitary installations.
HVAC water distribution loops.
Irrigation and small water control networks.
Systems requiring constant regulated outlet pressure.

Other Products From HERZ Armaturen

HERZ CAST IRON DOUBLE DOOR (DUAL PLATE) CHECK VALVE

Compact wafer-type dual-plate check valve for flanged pipelines in HVAC and water systems

HERZ DZR NON-RISING SPINDLE (NRS) GLOBE VALVE

Compact DZR brass globe valve with non-rising spindle for HVAC and hydronic shut-off applications

HERZ CAST IRON WAFER TYPE LEVER OPERATED BUTTERFLY VALVE

Cast iron wafer butterfly valve with stainless-steel disc and lever operation for HVAC and water systems.

FLANGED SERIES(PICV)

HERZ Cast Iron Flanged Pressure Independent Control Valve

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HERZ Differential Pressure Controller – DZR Brass Body (4002 / 4202 Series)

Mostafa Refaay — Sun, 09 Nov 2025 12:42:32 +0000

HERZ Differential Pressure Controller – DZR Brass Body (4002 / 4202 Series)

The HERZ 4002/4202 Differential Pressure Controller from HERZ Armaturen ensures stable pressure differentials in heating and cooling systems without external energy sources. Its DZR brass construction and EPDM diaphragm deliver corrosion resistance and long-term performance.

The unit allows adjustable setpoints between 5–30 kPa or 25–60 kPa, ensuring precise control of flow and system balance under varying load conditions.

Body Material: DZR Brass.
Pressure Range: 5–30 kPa or 25–60 kPa.
Connection Type: Threaded (Male/Female options).
Max Operating Pressure:

• 16 bar (4002 Series).
• 25 bar (4202 Series).

Max Differential Pressure: 4 bar.
Temperature Range:

• up to 130°C (DN ≤ 32).
• up to 110°C (DN 40–50).

Min Operating Temperature: 2°C (with frost protection to -20°C).
Membrane & O-Rings: EPDM.
kVS Values: 2.66–14.95 depending on DN.
Water Quality: ÖNORM H 5195 / VDI 2035 compliant.
Capillary Tube: 1000 mm included.

Guarantees consistent differential pressure across risers or branches.
Enhances efficiency and comfort in variable-flow systems.
Easy, precise setpoint adjustment with visual scale.
Maintenance-free operation with corrosion-resistant materials.
Compact design suitable for space-limited installations.

Heating and cooling circuits in residential and commercial buildings.
Fan coil and zone control systems.
Radiator and underfloor heating loops.
Pressure balancing in multi-branch hydronic networks.
Energy-efficient HVAC distribution systems.

Other Products From HERZ Armaturen

HERZ Brass 3-Way Control Valve (Calis TS RD Series)

Compact brass thermostatic 3-way valve for automatic temperature control

HERZ Rubber Expansion Joint (FS 220 Series)

Flexible EPDM rubber expansion joint for vibration and movement absorption in pipelines.

HERZ CAST IRON WAFER TYPE GEAR OPERATED BUTTERFLY VALVE

Gear-operated cast iron wafer butterfly valve for large-diameter HVAC and industrial water systems.

HERZ Differential Pressure Controller – Cast Iron Body (F 4007 Series)

Flanged differential pressure controller maintaining constant system pressure balance.

The post HERZ Differential Pressure Controller – DZR Brass Body (4002 / 4202 Series) first appeared on NOOR SCIENTIFIC & TRADE.

HERZ Differential Pressure Controller – Cast Iron Body (F 4007 Series)

Mostafa Refaay — Sun, 09 Nov 2025 12:39:30 +0000

HERZ Differential Pressure Controller – Cast Iron Body (F 4007 Series)

The HERZ F 4007 DP Controller from HERZ Armaturen is a flanged differential pressure regulator designed to stabilize system pressure across heating and cooling networks. Operating without auxiliary power, it maintains constant differential pressure within adjustable ranges.

Built with a robust cast iron body and EPDM components, it ensures precision, reliability, and long service life in demanding hydronic systems.

Connection Type: Flanged (EN 1092-2).
Pressure Range: 10–40 kPa, 20–80 kPa, 50–150 kPa.
Valve Body: EN-GJL-250 cast iron per EN 1561.
Diaphragm: EPDM reinforced with textile.
O-Rings: EPDM.
Spring: EN 10270-1-SH steel.
Max Operating Pressure: 16 bar.
Test Pressure: 25 bar.
Max Differential Pressure: 4 bar.
Temperature Range: -10°C to +110°C (with antifreeze to -10°C).
Impulse Pipe: 1500 mm included.
Sizes: DN 50–DN 200.

Maintains constant differential pressure in hydronic systems.
Operates without external power or control signals.
Improves system stability and flow balance.
Reduces energy consumption and noise.
Prevents pressure surges and flow fluctuations.

Central heating and cooling systems.
Hydronic balancing in large buildings.
HVAC zones requiring stable pressure control.
Industrial and commercial heat exchanger networks.
Chilled and hot water distribution circuits.

Other Products From HERZ Armaturen

HERZ BRONZE SWING CHECK VALVE

Compact bronze swing check valve for HVAC, chilled water, and domestic systems

HERZ DUCTILE IRON GATE VALVE

Heavy-duty ductile iron gate valve with stainless-steel trim for high-pressure water systems

HERZ Differential Pressure Controller – Cast Iron Body (F 4007 Series)

Flanged differential pressure controller maintaining constant system pressure balance.

HerzCON

HerzCON Fan Coil Unit Preassembled Valve Kit

The post HERZ Differential Pressure Controller – Cast Iron Body (F 4007 Series) first appeared on NOOR SCIENTIFIC & TRADE.

HERZ Rubber Expansion Joint (FS 220 Series)

Mostafa Refaay — Sun, 09 Nov 2025 12:28:23 +0000

HERZ Rubber Expansion Joint (FS 220 Series)

The HERZ FS 220 Rubber Expansion Joint is designed to absorb vibration, noise, and thermal expansion in pipeline systems. It effectively compensates axial, lateral, and angular movements while ensuring tight sealing performance under pressure.

Built with carbon steel flanges and EPDM rubber, it ensures durability and resilience in HVAC, marine, and industrial systems.

Flange Type: Carbon Steel (EN 1092).
Bellow Material: EPDM Rubber.
Reinforcement: Carbon Steel Wire.
Working Temperature: -10°C to +90°C.
Pressure Rating: PN 16.
Sizes: DN 65–DN 600.
Axial/Lateral/Angular Movement: up to 25 mm / 22 mm / 25°.
Excellent sealing and vibration reduction.

Compensates thermal expansion and ground settlement.
Reduces stress and tension in pipeline connections.
Prevents vibration and noise transfer.
Provides superior flexibility and long service life.
Ensures leak-free operation even under pressure fluctuations.

HVAC and building service systems.
Mechanical and industrial pipeline installations.
Domestic water distribution systems.
Marine and shipbuilding installations.
Pumping and liquid transport systems.
Areas requiring noise and vibration isolation.

Other Products From HERZ Armaturen

HERZ CAST IRON GLOBE VALVE

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

HERZ Differential Pressure Controller – DZR Brass Body (4002 / 4202 Series)

Compact differential pressure controller with adjustable setpoint for small and medium systems.

HERZ Braided Flexible Metal Hose (HB 200 Series)

High-pressure stainless steel flexible connector with EPDM insulation and carbon steel ends.

HERZ DZR DRAIN VALVE

DZR brass drain and fill valve for heating and chilled water systems, PN25 rated

The post HERZ Rubber Expansion Joint (FS 220 Series) first appeared on NOOR SCIENTIFIC & TRADE.

HERZ Braided Flexible Metal Hose (HB 200 Series)

Mostafa Refaay — Sun, 09 Nov 2025 12:25:40 +0000

HERZ Braided Flexible Metal Hose (HB 200 Series)

The HERZ HB 200 Braided Flexible Metal Hose from HERZ Armaturen is a high-performance connector engineered for high-pressure installations and fan-coil systems. It offers exceptional durability, hermetic sealing, and vibration resistance.

Constructed from stainless steel AISI 316L with AISI 304 braiding and EPDM insulation, it ensures reliable, corrosion-resistant operation across heating and cooling systems.

Hose Type: Braided Flexible Metal Hose.
Hose Material: Stainless Steel AISI 316L.
Braiding: Stainless Steel AISI 304.
End Connection: Carbon Steel St.37.2, Dielectric, or Stainless Steel (FxF).
Pressure Rating: PN 25.
Insulation: EPDM Rubber-based.
Sizes: DN 15–DN 50.
Lengths Available: 30 cm, 40 cm, 50 cm, 60 cm, 100 cm.
Threads: Female Threaded EN ISO 228/1.

Minimizes vibration and noise transfer.
Long service life under high pressure.
Prevents corrosion with specialized welding.
EPDM insulation prevents condensation and heat loss.
Easy installation and maintenance.

HVAC and fan-coil unit connections.
Heating and cooling distribution systems.
High-pressure water and fluid installations.
Industrial machinery and mechanical plants.
Systems requiring flexible vibration-resistant connectors.