Wika Switzer Water Flow Switch

Approx. Rs 3,800 / PieceGet Latest Price

Wika Switzer Water flow switch FSFD is designed for detecting water flow in wet sprinkler systems after the sprinkler has been triggered. It comes with various features and specifications that make it suitable for its intended application:

• Model: FSFD Water Flow Switch / Water Flow Detector
• Application: Detection of water flow in wet sprinkler systems after sprinkler activation

Special Features:

• Adjustable time delay mechanism (0-70 seconds) to prevent false alarms during water surges
• Tamper-proof cover with secure screws to prevent unauthorized access
• IP56/NEMA 4 ingress protection for indoor and outdoor use
• Microswitches for control panel and local audible warning activation
• Two cable duct openings for easy connections

Specifications:

• Approvals: UL 346, FM 1042 certified
• Case: Aluminum die-casting (EN AC-46000)
• Sealing: EPDM
• Flow Rate/Sensitivity: 4-10 GPM (15-38 LPM)
• Operating Pressure: Up to 268 psi (18.5 bar)
• Max. Water Surge: Up to 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 at AC 125/250 V
  • 2 A at DC 30 V resistive
• Electrical Connection: Two inputs for 1/2" conduit
• Mounting: Horizontal and vertical options, flow direction indicated by arrows
• Weight: Approx. 2-3.5 kg (4.4-7.7 lb) depending on pipe size

Regulations:

• Compliant with NFPA-13, NFPA-13D, NFPA-13R, and NFPA-72

Approx. Rs 1,250 / PieceGet Latest Price

• Case: ABS plastic cover (RAL 3028), nitrile & phosphor bronze bellows, IP30 protection.
• Process Media: Suitable for water, ethylene glycol, and non-corrosive liquids.
• Measuring Element: Stainless steel 316 paddle.
• Process Connection: ASTMBC38500 brass, options: 1" BSPT (ISO 7), 1" NPT (ANSI B1.20.1).
• Switch Point Repeatability: ±5% of FSR.
• Operating Life Cycle: >500,000 cycles.
• Pressure Handling: Up to 10 bar, surges:15 bar
• Temperature Ranges:
  Ambient: -20 to 70°C 
  Medium: -20 to 100°C
  Storage: -20 to 70°C

Additional Information: