FloSentinel™ MFFL Adjustable Flow Switches

Unique Features

• Adjustable, low pressure drop switching for a broad spectrum of liquids and gases
• Only one moving part. No springs, cams, vanes or mechanical linkages to wear out.
• Completely isolated electrical circuitry from the flow media.
• Patented design minimizes pressure drop.
• Not damaged by over flow, flow above 100% range.
• Switch adjustments over the entire full scale.
• External pointer, trigger point settings.
• Available in Brass, T-316 Stainless Steel, PVC, CPVC Electrical classification for NEMA 4 & 7

Typical Flow Applications

• Safety showers
• Pressure sprayers
• Lubricating systems
• Gas leak detection
• Purge flows
• Seal water

MEMFlo FloSentinel flow switches operate with the fluid entering the switch inlet vertically, flowing into the control tube assembly and exiting through the side port. With sufficient flow rates, the fluid displaces the float upward, causing contact closure. The displaced float “uncovers” the flow relief ports, minimizing pressure drop even at flows well above the switch adjustment range. If flow decreases, the float falls and the reed switch contact is lost, causing the alarm condition in most typical applications (low/no flow condition).

• Explosion-proof enclosures
• NEMA 4X enclosures
• Relay packages