System Sensor WFD 40 Water Flow Detector – 4 Inch
AED 378.00
System Sensor WFD 40 Water Flow Detector – 4 Inch shall be installed on system piping as designated on the drawing and/or as specified herein. The detector shall respond to water flow in the specified direction after a preset time delay that is field adjustable. The delay mechanism shall be a sealed mechanical pneumatic unit with a visual indication of actuation.
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Description
System Sensor WFD 40 Water Flow Detector – 4 Inch shall be installed on system piping as designated on the drawing and/or as specified herein. The detector shall respond to water flow in the specified direction after a preset time delay that is field adjustable. The delay mechanism shall be a sealed mechanical pneumatic unit with a visual indication of actuation. Detectors shall mount on any clear pipe span of the appropriate nominal size, either a vertical upflow or horizontal run, at least 4˝ from any fittings that may change water direction, flow rate, or pipe diameter or no closer than 24˝ from a valve or drain. Detectors shall have a sensitivity in the range of 4 to 10 gallons per minute and a static pressure rating of 450 psi* for 2˝- 8˝ pipes.
Features
- 100 percent synchronization activates both alarm panel and local bell
- Accommodates up to 12 AWG wire
- Tamper-resistant cover screws
- Visual switch activation
- Two-inch mounting hole provided in new WFD30-2 models
- Field-replaceable retard mechanism and SPDT switches
- Designed for both indoor and outdoor use
- Sealed retard mechanism immune to dust and other contaminants
- Rugged, dual SPDT switches enclosed in a durable terminal block
- UL-listed models are NEMA 4 rated
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