From a simple start-up timer to a full set of advanced flow- & time-based functions, the F29 MK3 is simply the most powerful and versatile flow switch available.
F29 MK3
Pump Controllers
Features
- Multi-voltage operation
- 10 programmable timers built in
- Powerful 40 A solid-state drive
- Dedicated 16 A alarm relay
- Detachable electrical housing
- 18 bar (261 psi) rated standard model
- 200 bar (2900 psi) high-pressure model available
- Suits pipes 1″ and larger
- Accepts 2 remote inputs
- Weatherproof housing
The F29 MK3 programmable flow switches are available in various configurations to suit specific applications. Trailing-wire versions for flows containing entrained solids are also available — please contact your supplier for further information.
Select Model
Trade customers should contact sales@kelco.co.nz for account pricing.
Ordering — Available Models
| Model Number | Description |
|---|---|
| F29-D-12-MK3 | |
| F29-D-MK3 | |
| F29-S-12-MK3 | 12 V DC — corrosion-resistant thermoplastic construction |
| F29-S-MK3 | 220–240 V / 24 V AC or DC — corrosion-resistant thermoplastic construction |
| F29-SS-MK3 | 220–240 V / 24 V AC or DC — high-pressure 316 stainless-steel process connection |
Operating Limitations
| Max operating pressure (thermoplastic) | 18 bar / 261 psi |
|---|---|
| Max operating pressure (stainless steel) | 200 bar / 2900 psi |
| Min burst pressure (thermoplastic) | > 30 bar / 435 psi |
| Ambient temperature range | 1 °C to 50 °C |
| Liquid temperature (thermoplastic) | 1 °C to 60 °C |
| Liquid temperature (stainless steel) | -20 °C to 80 °C |
| Ingress protection rating | IP64 |
| Recommended pipe size | 25 mm / 1″ or larger (no upper limit) |
Electrical Data
| Supply voltage (standard model) | 220–250 V AC or 18–25 V AC/DC (multi-voltage input) |
|---|---|
| Supply voltage (12 V DC model) | 11–14 V DC |
| Maximum motor load (all models) | Single-phase motors up to 2.4 kW at 220–240 V AC (P1). 3-phase motors of any size via interposing contactor. |
| Relay 1 contact rating (main pump relay) | 16 A at 240 V AC resistive |
| Relay 2 contact rating (alarm relay) | 16 A at 240 V AC resistive |
Dimensions
Flow Sensitivity
The flow rates required to actuate the F29 MK3 Series flow switch depend on many variables — turbulence, liquid viscosity, and the exact area of the paddle face exposed to the flow. For an accurate estimate of switch performance and to determine the effect of paddle trimming, use our online paddle calculator.
3-Phase Pump Motors
The F29 MK3 switches can be used to control either single-phase or 3-phase pumps, provided a 220–240 V AC or 24 V AC supply is available at the installation site. For 3-phase motors the F29 drives an interposing contactor which switches the motor itself — see the Pump Controller Power Calculator to size the contactor and check cable/voltage drop.
Application Restriction
The F29 MK3 is an industrial control device, specifically designed for use in industrial, agricultural and mining applications. It must never be used for any other application. Installation must be carried out by a qualified pump engineer, and all electrical work by a licensed electrician.
Hazardous Areas
The F29 MK3 is not certified for use in hazardous areas and must not be installed in any area classified as hazardous under AS/NZS 60079.10 (Zone 0, 1, 2, 20, 21 or 22). Suitability of the F29-D models for diesel refers only to the chemical resistance of the wetted materials. Where a pump handles flammable liquids, the controller, which has its flow sensor built in, must be located outside any hazardous area.
Serviceability
The F29 MK3 programmable flow switches are not user serviceable. However, spare parts — including replacement paddles and wet-end assemblies — are available from your local distributor or directly from Kelco Engineering.
