1113225 Potter VSR-F-EX-2.5 2.5 Inch Explosion Proof Flow Switch

• Model Number: VSR-F-EX-2.5
• Item Number: 1113225

• The 2.5" (50mm) device requires a hole with a diameter of 1 1/4" + 1/8" - 1/16" (33mm ±2mm).

The Model VSR-FEX is a vane type waterflow switch for use on wet sprinkler systems located in hazardous locations as shown above. The unit may also be used as a sectional waterflow detector on large systems. The unit contains two single pole, double throw, snap action switches and an adjustable, instantly recycling pneumatic retard. The switches are actuated when a flow of 10 gallons per minute (38 Lpm) or more occurs downstream of the device. The flow condition must exist for a period of time necessary to overcome the selected retard period.

• II 2 G Ex d II B T6
• II 2 D Ex tD A21 IP 66 T85C
• Service Pressure - Up to 450 PSI (31 BAR )
• Minimum Flow Rate for Alarm - 10 GPM (38 Lpm)
• Maximum Surge - 18 FPS (10 m/s)
• Contact Ratings:
• Two sets of SPDT (Form C)
• 15.0 Amps at 125/250 VAVAC
• 2.0 Amps at 30 VD C Resistive
• Conduit Entrances:
• Two conduit entrances provided for ½" conduit with ½" NPT threaded connections
• Environmental Specifications - For use in hazardous locations, Classified as:
• Class I: Groups C, D, Div. 1
• Class II: Groups E, F, G, Div. 1
• Class III: Div. 1
• Suitable for indoor or outdoor use with factory installed gasket and cast aluminum housing
• NEMA 4 Rated Enclosure - use with appropriate conduit fitting
• Temperature: 40°F/120°F, 4,5°C/49°C
• Non-corrosive sleeve factory installed in saddle

1113225 Datasheet