FS26 | Flow Switch with Gauge Port, Reliable Flow/Pressure Control

FS26 | Flow Switch with Gauge Port, Reliable Flow/Pressure Control

FS26 – AR Flow Switch with Gauge Port
The AR FS26 is a precision-engineered flow switch with an integrated gauge port, designed
by Annovi Reverberi to provide accurate flow detection, pressure monitoring, and system protection in
pump-driven water and cleaning systems. Built for reliability and safety, it automatically senses water
movement in the line and starts or stops the connected pump based on flow conditions, preventing dry
running and helping ensure consistent operation.

Combining a heavy-duty brass body with dependable internal mechanics, the FS26 is ideal for high-performance
pressure washer systems, industrial cleaning equipment, car wash installations, and automated
fluid-handling circuits where flow-based pump control and real-time pressure feedback are critical.

Key Features & Benefits

Flow Switching & Pump Protection

• Automatic flow sensing: Internal piston/diaphragm assembly responds instantly to water
  movement, closing or opening the electrical circuit that governs pump operation.
• Dry-run protection: Shuts the pump off when flow stops, helping prevent overheating,
  cavitation, and premature failure of pumps, seals, and fittings.
• Consistent activation thresholds: Factory-calibrated mechanism delivers repeatable
  start/stop points for predictable system behavior and improved safety.
• Low internal restriction: Flow path is designed to minimize pressure drop and maintain
  smooth, consistent throughput during operation.

Construction & Design

• Heavy-duty brass housing: Provides excellent corrosion resistance, mechanical strength,
  and long-term stability under high pressure and continuous cycling.
• Durable internal components: Stainless-steel and engineered polymer parts are selected
  for wear resistance, chemical compatibility, and reliable response over thousands of cycles.
• Compact form factor: Small footprint fits easily into tight system layouts and integrates
  with standard pipe and hose fittings.
• Precision threading & sealing surfaces: Supports leak-free installation and robust
  connections in both residential and commercial systems.

Integrated Gauge Port & Monitoring

• Built-in gauge port: Allows direct mounting of a pressure gauge or sensor at the flow
  switch, eliminating extra tees and reducing potential leak points.
• Real-time pressure feedback: Operators can monitor operating pressure, verify stability,
  and identify fluctuations that may indicate restrictions or system issues.
• Simplified diagnostics: Combining flow switching and pressure monitoring in one device
  streamlines commissioning, calibration, and service checks.

Installation & Maintenance

• Flexible mounting: Supports both horizontal and vertical orientations for easy placement
  in a wide variety of plumbing layouts.
• Wide system compatibility: Works with many pressure washer and industrial water circuits
  across varied flow and pressure conditions.
• Minimal maintenance requirements: Routine service typically involves only periodic
  inspection and simple cleaning of the internal flow passage to remove debris or mineral buildup.
• Quality-controlled manufacturing: Each FS26 is tested for flow accuracy, electrical
  response time, and pressure tolerance to guarantee dependable field performance.

FS26 | Flow Switch with Gauge Port, Reliable Flow/Pressure Control

Typical Applications

• Pressure washer systems: Provides automatic start/stop control and dry-run protection
  for electric or engine-driven pumps.
• Car wash & vehicle cleaning: Integrates into automated bays and wash arches for safe,
  reliable flow-based pump activation.
• Industrial water circuits: Supports booster pumps, rinse lines, and process-water loops
  where flow confirmation and pressure monitoring are essential.
• Agricultural & sanitation systems: Helps protect pumps and optimize performance in
  sprayers, sanitation lines, and washdown stations.
• Custom OEM builds: Ideal for system builders who need a compact, multi-function device
  combining flow switch, pump control, and gauge port in one component.