Description
Product Name: System Sensor WFD25N 2.5″ Waterflow Detector Price in Bangladesh
Manufacturer: System Sensor (Honeywell)
Product Overview
The System Sensor WFD25N operates as a vane-type waterflow detector engineered for 2-1/2-inch steel wet sprinkler piping. Furthermore, the device monitors water movement in commercial and industrial fire protection systems to initiate alarm notifications upon sprinkler activation.
In addition, the detector features a mechanical vane inserted into the pipeline to sense sustained water flow. Consequently, when sprinkler operation causes water flow above the activation threshold, the internal switches activate to send alarm signals to connected fire alarm control panels. Meanwhile, an integrated, field-adjustable pneumatic retard mechanism helps prevent false alarms caused by pressure surges or trapped air. Moreover, the unit mounts on both horizontal and vertical pipe runs for maximum installation flexibility.
Key Benefits
- Targeted Pipe Compatibility: Designed specifically for installation on 2-1/2-inch Schedule 7 through Schedule 40 steel pipe.
- Pneumatic Delay Mechanism: Incorporates a field-adjustable mechanical retard mechanism to help reduce nuisance alarms caused by transient waterflow.
- Dual Synchronized Contacts: Features two SPDT (Form C) switches to trigger panel alarms and local notification devices simultaneously.
- Rugged Outdoor Rating: Enclosed in a NEMA 4-rated housing for indoor and outdoor protection against moisture and environmental exposure.
Key Features & Technologies
- Vane-Sensing Technology: Employs a mechanical vane sensing mechanism with a triggering threshold of 4 to 10 GPM.
- Dual Conduit Access: Provides two 1/2-inch conduit openings to simplify electrical wiring and conduit connections.
- Tamper Resistance: Includes tamper-resistant cover screws and supports optional cover tamper switches for enhanced device security.
- Pressure Capacity: Features a static pressure rating of 450 PSI alongside a maximum surge velocity rating of 18 ft/sec.
- Sealed Retard Housing: Protects the internal delay mechanism from dust, dirt, and environmental contaminants.
Technical Specifications Overview
- Brand: System Sensor / Honeywell
- Model: WFD25N
- Product Type: Vane-Type Waterflow Detector
- Pipe Size Compatibility: 2-1/2 Inch (Schedule 7 through 40 Steel Pipe)
- Triggering Threshold: 4–10 GPM (15–38 LPM)
- Static Pressure Rating: 450 PSI
- Maximum Surge Velocity: 18 ft/sec
- Time Delay : Field-Adjustable Mechanical Retard
- Contact Configuration: Two Sets of SPDT (Form C) Switches
- Contact Ratings: 10 A, 1/2 HP @ 125/250 VAC; 2.5 A @ 6/12/24 VDC
- Enclosure Rating: NEMA 4
- Operating Temperature: 32°F to 150°F (0°C to 66°C)
- Conduit Knockouts: Two 1/2-Inch Openings
- Agency Listings: UL Listed, FM Approved
Conclusion
The System Sensor WFD25N Waterflow Detector provides reliable vane-type waterflow monitoring for 2-1/2-inch wet sprinkler systems. Moreover, its field-adjustable pneumatic retard mechanism, dual Form C contacts, and NEMA 4 enclosure ensure dependable operation and straightforward integration across commercial fire protection installations.
Contact Us
For pricing, specifications, stock availability, and purchasing inquiries regarding System Sensor fire protection devices in Bangladesh, get in touch with our team:
- Phone: +8801737118246
- Email: [email protected]
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