Signet 525 Metalex Flow Sensor

Signet 525 Metalex Flow Sensor combines stainless steel construction with insertion paddlewheel technology (signet 515). the withstands extreme pressure and temperature. Tungsten Carbide shafts with carbon fiber reinforced PTFE bearings provide excellent wear resistance for longer service life. Comprehensive mounting program allows installation of steel conduits with mini locks for small diameters, and mini taps for pipes up to DN300 (12 in). Self-produced signal output using a Signet 8150 battery operated flow monitor.

Signet 525 Metalex Flow Sensor Fields of Application:

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

Advantages:

  • 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)

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Standards:

  • RoHS compliant
  • China RoHS

Signet 525 Metalex Flow Sensor Specification

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
Retainers (2) 316 stainless steel (1.4401)
Rotor Pin Tungsten Carbide GRP 1 or 316 stainless steel
Rotor 17-4PH-1 Stainless Steel
Rotor Bearing(2) Carbon fiber reinforced PTFE
Gasket KLINGER®sil C-4401 (supplied with fi tting)
Electrical
Frequency 39 Hz per m/s nominal 12 Hz per ft/s sinusoidal
Amplitude 5 to 8 mV p-p per Hz
Source Impedance 11.6 KΩ
Cable Type Cable (per foot) 2 cond. w/shield, 22 AWG
Cable Length 7.6 m (25 ft) can be extended up to 61 m (200 ft)
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
Standards and Approvals
RoHS compliant, China RoHS
Lloyd’s Register Type Approval, NSF (P51530-PX version only)
Manufactured under ISO 9001 for Quality and ISO 14001 for Environmental Management and OHSAS 18001 for Occupational Health and Safety
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