The FSFD flow switch is designed to monitor and control fluid flow in various industrial systems.
It detects the presence or absence of flow and activates an electrical contact accordingly.
The device helps protect equipment from damage caused by insufficient or no flow conditions.
It is commonly used in pipelines, cooling systems, and process applications.
The FSFD flow switch is suitable for liquids such as water, oil, and other compatible fluids.
It typically features a robust and durable construction for reliable operation.
The switch can be installed in horizontal or vertical piping systems.
It offers adjustable flow setpoints to meet different operational requirements.
The FSFD model is easy to install and requires minimal maintenance.The WIKA Model FSFD is a vane-type flow switch designed specifically to detect water flow in wet sprinkler systems once a sprinkler head has been triggered. It features a pneumatic time delay mechanism to prevent false alarms from water surges and provides a direct electrical connection to alarm
Overall, it improves system safety, efficiency, and performance by ensuring proper flow monitoring.
Approvals ■ UL 346
■ FM 1042
Case Aluminium die-casting (per EN AC-46000)
Sealing EPDM
Ingress protection IP56/NEMA 4, suitable for indoor and outdoor applications
Flow rate/sensitivity 4 ... 10 GPM [15 ... 38 LPM]
Operating pressure 268 psi [18.5 bar] 1)
Max. water surge 18 FPS [5.5 m/s)]
Operating temperature 0 ... 68 °C [32 ... 154 °F]
Switching function 2 x SPDT (single pole double throw), form C
Electrical rating ■ 10 A, AC 125/250 V
■ 2 A, DC 30 V res.
Electrical connection Two inputs for 1/2“ conduit
Mounting ■ Horizontal mounting
■ Vertical mounting
The arrows on the case and the saddle determine the flow direction.
Regulations
Installation of sprinkler systems NFPA-13
Installation of sprinkler systems in
one- and two-family dwellings and
manufactured homes
NFPA-13D
Installation of sprinkler systems in
low-rise residential occupancies
NFPA-13R
National fire alarm and signaling code NFPA-72
Weight Approx. 2 ... 3.5 kg [4.4 ... 7.7 lb], depending on pipe size
