525 Metalex Flow Sensor


The Signet 525 Metalex™ Paddlewheel Flow Sensor combines stainless steel construction with insertion paddlewheel technology. The result is a highly reliable sensor resistant to extreme pressures and temperatures. The Tungsten Carbide shaft with carbon fiber-reinforced PTFE bearing provides excellent wear resistance for extended service.

A comprehensive fitting program allows installation in steel lines with the mini-lock for small diameters, and either the mini-tap for pipes up to DN300 (12 in.). The self-generating signal output allows use with the Signet 8150 battery-operated flow monitor.

Product Overview

Fields of Application:

  • Boiler Feedwater Monitoring
  • HVAC
  • Chemical Transport
  • Heat Exchangers
  • Reverse Osmosis
  • Cooling Systems
  • Not suitable for gases


  • For up to 103 bar (1500 psi @ safety factor 1.5) pressure
  • DN15 to DN300 (½ to 12 in.) pipe range
  • Simple installation
  • Self-powered/no external power required
  • 316 SS body
  • Tungsten Carbide or SS shaft   
  • 7.6 m (25 ft) cable included
  • Operating range: 0.5 to 6 m (1.6 to 20 ft/s)


  • RoHS compliant
  • China RoHS


Compatible Products