VSR (EU) Water Flow Switch | UL Listed & FM Approved
VSR (EU) Water Flow Switch | UL Listed & FM Approved

VSR (EU) Water Flow Switch | UL Listed & FM Approved

The VSR (EU) Water Flow Switch by Rapidrop UK is a UL Listed and FM Approved vane-type water flow detector designed for wet fire sprinkler systems. Featuring adjustable pneumatic retard and dual SPDT snap-action switches, it accurately detects sustained water flow while minimizing false alarms. Available for DN50–DN200 (2"–8") pipe sizes, it is ideal for commercial and industrial fire protection applications.

Brand: Rapidrop

Country of Origin: United Kingdom

Official Importer & Distributor: PGTECH Vietnam

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Mô tả sản phẩm

The Rapidrop RDVSR-EU Water Flow Switch is a vane-operated water flow detector designed to monitor water movement in wet pipe fire sprinkler systems. Installed directly on the pipeline, the device detects sustained water flow caused by sprinkler activation and transmits an alarm signal to the fire alarm control panel or building management system.

The flow switch operates using an internal vane mechanism positioned inside the pipe. When water begins flowing through the pipeline, the vane is displaced, activating the electrical switch. To prevent nuisance alarms caused by temporary pressure fluctuations or water surges, the RDVSR-EU incorporates an adjustable pneumatic retard mechanism, allowing the alarm signal to be delayed until continuous water flow is confirmed.

The device is equipped with two independent SPDT (Single Pole Double Throw) snap-action switches, providing reliable signal transmission for fire alarm panels, supervisory systems, or auxiliary control equipment.

Designed for flexibility, the RDVSR-EU can be installed as a main system flow detector or as a zone water flow switch in larger sprinkler installations, enabling localized monitoring and faster identification of activated sprinkler zones.

The Rapidrop VSR (EU) Water Flow Switch is certified to multiple internationally recognized fire protection standards, including UL Listed, FM Approved, VdS, LPCB, and CE, making it suitable for projects requiring global fire protection compliance.

Rapidrop is a trusted UK manufacturer of fire protection equipment, supplying comprehensive sprinkler system solutions to more than 80 countries worldwide. Its portfolio includes alarm valves, deluge valves, pressure control valves, sprinkler heads, supervisory devices, and monitoring equipment certified to leading international standards.

In Vietnam, PGTECH is the official importer and distributor of Rapidrop fire protection products, providing genuine water flow switches, pressure switches, sprinkler equipment, and complete fire protection solutions for commercial and industrial projects.

Đặc tính thiết kế

  • UL Listed and FM Approved
  • Vane-type water flow detection
  • Adjustable pneumatic retard to minimize false alarms
  • Dual SPDT snap-action switches
  • Suitable for main or zone flow monitoring
  • High detection accuracy for sustained water flow
  • Low pressure loss
  • Fast and reliable alarm activation
  • Certified to UL, FM, VdS, LPCB, and CE standards
 
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