Serie C15Flussostato in linea

Flussostato versatile ad azionamento magnetico, normalmente aperto, in un corpo in ottone monoblocco. Si attiva in risposta al flusso. Ideale per applicazioni con liquidi puliti, tra cui la pressurizzazione e il comando di pompe o ventilatori tramite relè, contattore o PLC — in acqua dolce, acqua di mare e gasolio.

Serie C15

Caratteristiche

  • Corpo in ottone monoblocco
  • Montaggio in qualsiasi posizione
  • Modello per gasolio disponibile
  • Contatti reed a secco
  • Rileva flussi molto bassi: si attiva a 0.15 L/min (in verticale, fermo non magnetico)
  • Progettazione a bassa perdita di carico
  • Completamente riparabile
  • Resistente agli agenti atmosferici

La Serie C15 è composta da un modulo elettrico di commutazione sigillato a cavallo di un corpo metallico monoblocco. Il modulo elettrico autonomo si rimuove facilmente senza intervenire sulle tubazioni e può essere invertito o ruotato indipendentemente dal corpo. All’interno del corpo metallico, un pistone a sospensione magnetica e libero di muoversi aziona l’interruttore non appena inizia il flusso. Il C15 è fornito con contatti reed a secco per il comando tramite relè o PLC. Tollera pressioni statiche o dinamiche fino a 100 bar (1450 psi) con un fattore di sicurezza di 4:1.

Ulteriori informazioni

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Selezioni il modello

Ordini — modelli disponibili

Codice modelloDescrizione
C15-BDry reed switch S.P.S.T. N.O. — 50 W/VA, 250 VAC / 200 VDC, 1.5 A max. Suitable for PLC, telemetry and logic circuits.
C15-B-DDiesel-suited dry reed switch S.P.S.T. N.O. — 50 W/VA, 250 VAC / 200 VDC, 1.5 A max. Suitable for PLC, telemetry and logic circuits.

Limiti di funzionamento

Switching point on rising flow (horizontal or vertical, magnetic retainer fitted)0.35 L/min (water at ambient)
Switching point on falling flow (horizontal or vertical, magnetic retainer fitted)0.30 L/min (water at ambient)
Switching point on rising flow (vertical, flow upward, non-magnetic retainer fitted)0.15 L/min (water at ambient)
Switching point on falling flow (vertical, flow upward, non-magnetic retainer fitted)0.10 L/min (water at ambient)
Maximum recommended flow rate through switch30 L/min
Maximum operating pressure (static or dynamic)100 bar / 1450 psi
Operating temperature rangeHot or cold liquids from −20 °C up to 90 °C; can be steam-sterilised at 100 °C for short periods
Ingress protection ratingIP56

Dati elettrici

Module typeDry-contact reed switch (electrical module B)
Contact configurationS.P.S.T. normally open
Switched power (maximum)50 W/VA
Switched voltage (maximum)250 VAC / 200 VDC
Switched current, resistive AC RMS (maximum)1.5 A
Inductive loads (power factor 0.4)Not suitable
Typical applicationPLC, telemetry and relay logic circuits
Temperature de-ratingThe C15-B modules do not require de-rating at elevated temperatures

Dimensioni

Dimensioni di Serie C15
Multi-view overall dimensions in millimetres — 108 mm body length, 41 mm A/F brass hex, 1/2" BSPT male inlet (15 BSPT), 3/4" BSPT female outlet (20 BSPT), 8.5 mm cable gland.

Switching-Point Sensitivity

Switching point and sensitivity to flow depend on orientation, liquid velocity, viscosity and piston clearance. A non-magnetic piston retainer is supplied. With the switch mounted vertically and flow passing upward, the non-magnetic retainer halves the switch-on flow rate — i.e. makes the switch approximately twice as sensitive. Switching points are for water at ambient temperature; decreasing the fluid viscosity proportionally increases the switch-on flow rate.

Hazardous Areas

The C15-B and C15-B-D are simple apparatus under AS/NZS 60079.11 and may be used in a hazardous area only as part of an intrinsically safe circuit, connected through suitably certified associated apparatus. They are not Ex certified in their own right. The full conditions of use are given in the installation sheet.

Compatible Liquids

Suits many clean liquids, including fresh water, sea water and diesel fuel. Increasing fluid viscosity decreases the flow rate required to actuate the switch. The switch can only be used with liquids free from suspended solids and free from particulates attracted to magnets.

Elevated Temperatures

Suitable for hot or cold liquids up to 90 °C, and systems can be steam sterilised at 100 °C for short periods without damaging the switch. The C15-B reed-switch modules do not require de-rating at elevated temperatures.

Installation

Install in any location in vertical or horizontal pipes; in vertical pipes flow can be upward or downward with very little difference in flow sensitivity. Where possible, fit a union on the inlet and outlet for easy removal for cleaning and servicing. The male threaded end of the switch is the inlet. Make sure no thread tape or other foreign matter enters the switch, and always fit a Y-strainer in the inlet pipe directly before the switch where scale or other material may be present. The electrical module can be removed (undo the 4 self-tapping screws) so the body can be screwed into tight locations, for example the discharge port of a pump.

Check Valves

Many applications benefit from a non-return valve in the pipework directly before the switch. The flow switch is not designed to operate as a one-way valve, and rapid or high pressure flow reversal, such as water hammer, can damage its piston.

Electrical Safety

The C15 Series flow switch is a mains voltage device. All electrical work must be performed by a fully qualified and licensed electrician and conform to AS/NZS (or equivalent) standards and local wiring rules. After installing or servicing, always replace the lid, fully tighten the lid screw and ensure the cable gland is fully tightened. Without its lid the switch is not weather or insect proof and presents a potential shock hazard.

Manutenibilità

Completamente riparabile sul campo. Il modulo elettrico si rimuove facilmente senza intervenire sulle tubazioni (svitare le 4 viti autofilettanti che fissano le due metà del modulo) e può essere ruotato o invertito indipendentemente dal corpo; l’inversione del modulo non inverte l’azione dell’interruttore. Rimontare con le 4 viti autofilettanti in acciaio inox e non interporre grasso, colla o materiale di tenuta tra il modulo e il corpo. Moduli e kit di guarnizioni di ricambio sono disponibili presso Kelco Engineering o il Suo distributore.

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