The +GF+ Signet Type 515 Rotor-X Paddlewheel Flow Sensor family provides self-powered measurement of liquid flow in full pipes.
The insertion-style sensors cover an operating range of 0.3 to 6 m/s (1 to 20 ft/s) and can be installed in pipe sizes from DN15 to DN900 (½” to 36″).
Standard, Integral, and Wet-Tap configurations are available, along with multiple sensor body, rotor, shaft, O-ring, cable-length, and insertion-length options. PP and PVDF sensor-body materials support a range of liquid process requirements.

Key Characteristics
- Operating range of 0.3 to 6 m/s (1 to 20 ft/s)
- Installs in pipe sizes from DN15 to DN900 (½” to 36″)
- Self-powered operation with no external power required
- 20:1 turndown ratio
- Linearity of ±1% of maximum range at 25°C (77°F)
- Repeatability of ±0.5% of maximum range at 25°C (77°F)
- Available with PP or PVDF sensor bodies
- Designed for liquid flow measurement and not suitable for gases
Ideal Applications
- Pure Water Production
- Filtration Systems
- Chemical Production
- Liquid Delivery Systems
- Pump Protection
- Scrubber Systems
- Water Monitoring
Product Family Includes
- Standard Mount Paddlewheel Flow Sensors for use with remote-mount instruments
- Integral Mount Paddlewheel Flow Sensors for directly mounted local display configurations
- Wet-Tap Mount Paddlewheel Flow Sensors for use with the 3519 Wet-Tap Valve
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