Siemens - Combi Valve VQI46 Series
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Introducing the Siemens Combi Valve VQI46 Series, your go-to solution for optimizing room and zone control in ventilation and air-conditioning systems. With an integrated differential pressure controller and an array of impressive features, this valve series delivers on precision and performance. Discover how it can revolutionize your control systems.

Key Features:

  • Robust Design: The VQI46 Series boasts a valve body made of dezincification-resistant hot-pressed brass (DZR), ensuring durability and resistance to corrosion.

  • Volumetric Flow Range: With a volumetric flow range from 30 to 1800 l/h, these valves provide precise control to meet a wide range of system requirements.

  • Differential Pressure Control: The VQI46 Series supports a differential pressure range spanning from 17 to 600 kPa, offering exceptional hydraulic balancing capabilities.

  • Thread Options: Whether you require internal threading (Rp conforming to ISO 7-1) or external threading (G conforming to ISO 228-1), these valves accommodate your installation preferences.

  • Pressure Test Points (Optional): Opt for the version equipped with pressure test points for Δp measurement to facilitate diagnostics and maintenance.

  • Actuator Compatibility: The VQI46 Series is designed to work seamlessly with electrothermal or electromotive actuators, including STA..65.., STP..65.., and SUE21P (2-position) actuators.

Versatile Applications:

The Siemens Combi Valve VQI46 Series is your perfect fit for various applications:

  • Ventilation and Air Conditioning: Achieve precision control on the water side and automatic hydraulic balancing of terminal units such as fan coils, induction units, and heat exchangers for heating and cooling, all with 2-point control.

  • Heating Zones: Optimize self-contained heating systems, apartments, individual rooms, and more with precision and efficiency.

Designed for Closed Circuits:

Engineered for use in closed circuits, the VQI46 Series ensures consistent and reliable control, making it the smart choice for enhanced system performance.

Functional Principle:

The VQI46 Series functions by controlling the medium's flow with a variable presetting opening, followed by an On/Off control valve. The built-in mechanical differential pressure controller ensures that the selected volumetric flow is maintained consistently across a wide range of working conditions.

Part Numbers:
VQI46.15L0.5QF Combi valve Internal Thread On/Off DN15 520 l/h
VQI46.15F1.3QF Combi valve Internal Thread On/Off DN15 1300 l/h
VQI46.20F1.5QF Combi valve Internal Thread On/Off DN20 1500 l/h
VQI46.25F1.8QF Combi valve Internal Thread On/Off DN25 1800 l/h

Frequently Bought Together

Total price $279.00