GF Signet 525 Metalex Flow Sensor

GF Signet P525-2S Signet 525 Metalex Flow Sensor

The GF Signet 525 Metalex Flow Sensor is a paddle-wheel flow sensor built for tough environments. Here’s a breakdown of its key features:

  • Rugged Design: Made of stainless steel for durability and resistance to extreme pressures and temperatures.
  • Long-lasting Performance: Tungsten Carbide shaft and Fluoroloy B ® / PTFE bearing minimize wear and tear, ensuring extended operation.
  • Versatile Installation: Compatible with various pipe sizes (DN15 to DN300) using mini-block, mini-tap, or saddle fittings.
  • Self-powered Output: Generates its signal, working with any battery-operated flow totalizer like the GF Signet 8150.
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Features of GF Signet 525 Metalex Flow Sensor

  • Sensor Style – used with 1¼” to 12″ weld-on mini-tap fittings
  • Rotor Pin Material – 316 Stainless Steel
  • 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
  • 7.6 m (25 ft) cable included
  • Operating range: 0.5 to 6 m (1.6 to 20 ft/s)
  • CE approved

Application of GF Signet 525 Metalex Flow Sensor

  • Boiler Feedwater Monitoring
  • HVAC Systems
  • Chemical Transport
  • Heat Exchangers
  • Reverse Osmosis
  • Cooling systems
  • Not Suitable for Gases

Specification of GF Signet 525 Metalex Flow Sensor

General
Operating Range 0.5 to 6 m/s 1.6 to 20 ft/s
Pipe Size Range DN15 to DN300 ½ to 12 in.
Linearity ±1% of max. range @ 25 °C (77 °F)
Repeatability ±0.5% of max. range @ 25 °C (77 °F)
Min. Reynolds Number Required 4500
Wetted Materials
Sensor Body 316 SS (ACI type CF-8M per ASTM A351), DIN 17440
Rotor Material 17-4PH-1 Stainless Steel
Rotor Pin Tungsten Carbide GRP 1 or 316 stainless steel
Retainers (2) 316 stainless steel (1.4401)
Rotor Bearings (2) Carbon fi ber reinforced PTFE
Gasket KLINGER®sil C-4401 (supplied with fitting)
Electrical
Frequency 39 Hz per m/s nominal 12 Hz per ft/s nominal
Amplitude 5 to 8 mV p-p per Hz
Source Impedance 11.6 KΩ
Cable Length 7.6 m (25 ft), can be extended up to 61 m (200 ft)
Cable Type Cable (per foot) 2 cond. w/shield, 22 AWG
Max. Temperature/Pressure Rating
Socket Weld or Weld-On Mini-Tap Fittings 103 bar (1500 psi @ safety factor 1.5) @ 149 °C (300 °F)
Strap-on Saddle Fitting 21 bar (305 psi) @ 66 °C (151 °F)
Operating Temperature -18 °C to 149 °C 0 °F to 300 °F
Shipping Weight
P525-1/-1S 0.723 kg 1.6 lb
P525-2/-2S 0.774 kg 1.7 lb
Standards and Approvals
RoHS compliant, China RoHS
Manufactured under ISO 9001 for Quality and ISO 14001 for Environmental Management and OHSAS 18001 for Occupational Health and Safety

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