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  • SIEMENS QVE1901 Brass Flow Monitor Switch for Hydraulic Systems Liquid HVAC Plants Refrigeration Heating Plants PN25 Use
  • SIEMENS QVE1901 Brass Flow Monitor Switch for Hydraulic Systems Liquid HVAC Plants Refrigeration Heating Plants PN25 Use
  • SIEMENS QVE1901 Brass Flow Monitor Switch for Hydraulic Systems Liquid HVAC Plants Refrigeration Heating Plants PN25 Use
  • SIEMENS QVE1901 Brass Flow Monitor Switch for Hydraulic Systems Liquid HVAC Plants Refrigeration Heating Plants PN25 Use
  • SIEMENS QVE1901 Brass Flow Monitor Switch for Hydraulic Systems Liquid HVAC Plants Refrigeration Heating Plants PN25 Use
  • SIEMENS QVE1901 Brass Flow Monitor Switch for Hydraulic Systems Liquid HVAC Plants Refrigeration Heating Plants PN25 Use
SIEMENS QVE1901 Brass Flow Monitor Switch for Hydraulic Systems Liquid HVAC Plants Refrigeration Heating Plants PN25 Use

SIEMENS QVE1901 Brass Flow Monitor Switch for Hydraulic Systems Liquid HVAC Plants Refrigeration Heating Plants PN25 Use

$97.50-$97.50/ Piece|1 Piece/Pieces(Min. Order)
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SIEMENS QVE1901 Brass Flow Monitor Switch for Hydraulic Systems Liquid HVAC Plants Refrigeration Heating Plants PN25 Use

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Liquid Flow Monitoring: The SIEMENS QVE1901 Flow Monitor continuously detects and measures liquid flow rates in hydraulic systems, ensuring optimal performance in HVAC and refrigeration plants.
  • Alarm Activation: Triggers alerts for flow interruptions or deviations, preventing system failures in critical applications like heating and cooling processes.

Key features

  • 1. Corrosion-Resistant Brass Construction

    • With a corrosion-resistant brass body, ensure durable performance in harsh hydraulic environments. Outperforming standard plastic-based models*, this design withstands aggressive liquids and prolonged use in HVAC/refrigeration systems.

  • 2. Compact, Mountable Design for Easy Installation

    • With a compact, wall-mountable bracket, integrate seamlessly into villa HVAC systems. Its streamlined profile reduces installation space by up to 25% compared to bulkier flow switches*.

  • 3. High-Pressure PN25 Compatibility

    • With PN25 pressure rating certification, handle hydraulic systems operating at pressures up to 25 bar—surpassing the 16 bar limit of many standard flow switches*. Maintain reliability in demanding commercial/residential applications.

  • 4. Tailored for Residential HVAC Efficiency

    • Engineered for villa HVAC systems, optimize energy use in heating/cooling setups. Designed to balance precision and affordability, avoiding over-specification common in industrial-grade alternatives*.

  • 5. CE-Certified Safety Compliance

    • With CE certification, meet EU safety and environmental standards. Unlike uncertified competitors, ensure legal compliance and risk mitigation in regulated commercial/residential installations*.

Product details

SIEMENS QVE1901 Brass Flow Monitor Switch for Hydraulic Systems Liquid HVAC Plants Refrigeration Heating Plants PN25 Use

The SIEMENS QVE1901 flow monitor is a compact, brass-based flow switch designed for hydraulic systems in HVAC and refrigeration plants. With anti-corrosion properties and PN25 pressure rating, it ensures reliable liquid flow monitoring in villa installations. Its durable brass construction and CE-certified safety features make it ideal for harsh environments.

Technical specifications

FeatureSpecificationBenefit
MaterialBrassHigh corrosion resistance and thermal conductivity
CertificationCE-compliantMeets EU safety and environmental standards
Pressure RatingPN25Supports high-pressure hydraulic systems
Thermocouple TypeCustomizable (e.g., K, J, T types)Versatile temperature measurement capability
ApplicationHVAC/Refrigeration in villasOptimized for residential and light industrial use

Customization guide

Adjustable probe length and thermocouple type (e.g., K-type for industrial-grade accuracy) allow customization to meet specific villa HVAC requirements.

Get inspired

With its anti-corrosion brass body and PN25 rating, the QVE1901 ensures long-term reliability in villa HVAC systems. Pair it with customizable thermocouples to monitor temperatures in refrigeration lines or heating circuits.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Temperature Range-40°C to 120°CExtended to 150°CExtended to 200°C*
Response Time2 seconds1.5 seconds (+25%)1 second (+50%)
DurabilityStandard corrosion protectionEnhanced brass alloyStainless steel coating (+40% resistance)

Supplier's note

  1. Technical Breakthroughs:

    • Corrosion-resistant brass ensures longevity in humid villa environments.
    • Customizable thermocouples (e.g., K-type) enable precise temperature tracking in refrigeration cycles.
    • CE certification guarantees compliance with EU safety standards for HVAC installations.

  2. Version Selection Guide:

    • Base Model: Ideal for standard villa HVAC systems requiring basic flow monitoring.
    • Advanced Model: Recommended for villas with refrigeration plants needing faster response times (e.g., 1.5s vs. industry average 2s).
    • Pro Model: Best for industrial-scale villas with high-temperature applications (e.g., 200°C resistance for boiler systems). With its stainless steel coating, it outperforms competitors in corrosive environments.

Frequently asked questions

  • Which SIEMENS flow monitor model suits small villa HVAC systems?

  • How to maintain the brass components of the SIEMENS QVE1901?

  • Brass vs Stainless Steel: Which material is better for flow sensors in heating systems?

  • Can the SIEMENS QVE1901 probe length be customized for refrigeration plants?

  • Is the SIEMENS QVE1901 certified for HVAC safety standards?

  • What installation tips are needed for SIEMENS flow switches in heating plants?

  • Does the SIEMENS QVE1901 work in low-temperature refrigeration systems?

  • Is the SIEMENS QVE1901 compatible with PN25 hydraulic systems in HVAC?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Flow SwitchesHVAC plants, refrigeration systems, villa heatingMaterial: Brass (C26000 alloy) ▲▲▲ (vs Industry Standard’s plastic)
Anti-Corrosion: 500+ hours ASTM B117 (Base) ▲▲▲ 1000+ hours (Advanced)		Durable in corrosive environments (e.g., saltwater systems)
Precise flow detection (±5% accuracy)		Higher upfront cost than plastic alternatives
Temperature SensorsIndustrial HVAC, refrigeration controlType K Thermocouple (±1.1°C accuracy)
Type J (Advanced: ±0.5°C) ▲▲▲		Wide temp range (-200°C to 1350°C)
Fast response time (0.5 sec)		Requires calibration for extreme accuracy
Pressure RegulatorsHVAC pressure management systemsStainless Steel Body (Industry: Carbon Steel)
316L (Advanced: 10% higher pressure tolerance ▲▲)		Corrosion-resistant in humid environments
Longer lifespan (10+ years)		Heavier, complex installation
Corrosion-Resistant ValvesCoastal HVAC systems, chemical plants316L Stainless Steel (ASTM A182) ▲▲ (vs Industry’s 304)
Seal: EPDM (Advanced: Viton ▲)		Withstands 1000+ hours ASTM B117 salt spray
Leak-proof under high pressure		Higher cost than standard valves
HVAC Duct ComponentsAirflow management in villasGalvanized Steel (ASTM A653) ▲ (vs Uncoated Carbon Steel)
Thickness: 1.2mm (Base) ▲▲ 1.8mm (Advanced)		50% longer lifespan than uncoated ducts
Quiet operation (≤45 dBA)		Bulky, requires professional installation
Traditional Flow MetersLegacy HVAC systemsMechanical Design (±10% accuracy)
Limited to 50°C max temp		Low cost, no power requiredProne to clogging
Manual readings only

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