Full Profile Electromagnetic Averaging Insertion Flow Meter with Multiple Electrodes

Flow-Tronics TORPEE-MAG is a hot tap full profile electromagnetic insertion flow meter. Multiple electrodes placed across the entire sensor body at equal area, measure and report the average flow rate over the full diameter of the pipe. The specific design of the multi-electrode sensor compensates for variable flow profiles, including swirl and turbulent conditions and allows installation without calibration on site.

The TORPEE-MAG can be installed without shutting down, emptying or cutting the pipe (hot tap installation). It does not require welding flanges and installation can be done in pressurized pipelines up to 16 bar.

Cost of installation is largely reduced by eliminating the need for heavy equipment (cranes, etc.) or extensive manpower. The TORPEE-MAG is the most economical flow metering solution for medium and large pipe sensor sizes, reducing drastically installation costs.

The TORPEE-MAG fits in confined spaces, can be submerged and offers complete accessibility. It can be removed in pipes under pressure for easy inspection, cleaning, calibrating or verification. It is particularly cost-effective for retrofit application.

The TORPEE-MAG comes in 2 different sizes in order to be used with 1,5 inch or 2 inch ball valves. The 1,5 inch TORPEE-MAG is available for pipe sizes ranging from DN100 up to DN1500. The 2 inch TORPEE-Mag is available for pipe sizes ranging from DN500 up to DN2500. For larger pipe sizes, please contact FLOW-TRONIC.

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• Multi-electrode sensor delivering accurate total flow profile rivaling the performance of a full-bore meter (0,5% accuracy)
• Economical solution for medium & large line sizes reducing drastically installation costs (sizes from DN 100 to DN2500)
• Removable in pipes under pressure for inspection, cleaning, calibration or verification
• Sensor coated with food & beverage certified epoxy coating
• Robust construction for operational longevity with rugged 316 stainless steel/aluminium sensor body
• Comes pre-calibrated from the Calibration Lab. With no moving parts, the sensor contains nothing to wear or break
• Made in Belgium

• Two 0/4…20mA outputs
• Bi-Directional
• Dual range
• Diagnostic function
• Empty pipe detection


• Drinking Water: Distribution, District Metered Areas (DMAs), Filter Balancing & Backwash, Pump Stations, UV Dosing, Well Water, Boosting Stations
• Waste Water: Effluent, Recycle / Reclaim
• Industrial: Chilled Water, Cooling Water, Pulp & paper, Chemical
• Inflow and Infiltration (I&I) Studies
• Billing / Custody Transfer


• Size:
   - TORPEE-MAG 1.5” from DN100 to DN1525 (inner Ø) – 2 to 5 electrodes
   - TORPEE-MAG2” from DN500 to DN2500 (inner Ø) – 5 to 7 electrodes
• Weight: Depending on size of sensor
• Materials:
   - Robust sensor body: 316 stainless steel, fiberglass derivate, carbonNSF-61 certified epoxy coating available as an option
   - Insertion hardware: 316 stainless steel
   - Compression seal: silicone rubber (EPDM)
   - Sensor electrodes: graphite
• Cable lengths: Available from 10 m to 100 m
• Protection: IP68/NEMA 6P (sensor is submersible)
• Certifications: CE, BS 6920
• Process connection:
   - Min. 48 mm clear diameter for 2” TORPEE-MAG
   - Min. 36 mm clear diameter for 1.5“ TORPEE-MAG
• Sensor length: Depending on inner pipe Ø and connection accessories
• Connection to sensor: Separate (converter connected with cable to sensor)
• Calibration: Calibration ISO 17025 traceable

• Method: Electromagnetic
• Range: 0 m/s to 6 m/s (bidirectional) (max. velocity possible depending from pipe Ø and sensor type)
• Accuracy:
   ±0.5% of reading value from 0.25 m/s to 6 m/s ± zero stability±
   0.8% of reading value from 0.02 m/s to 0.25 m/s ± zero stability
• Zero stability: ±1 mm/s
• Repeatability: 0.2% of reading value
• Linearity: 0.2% of range

• Fluid: Drinking water or raw water
• Min. conductivity: 5 μmho/cm
• Flow direction: Forward flow and bidirectional as an option
• Operating pressure: Max. 17 bar
• Fluid temperature limits: -10°C (not freezing) to +60°C at 17 bar

• Mounting: Separate
• Protection: IP67/NEMA 6
• Display:
   - White on blue backlit LCD 128 x 64 pixels
   - 2 Programmable displays:Real-time
   - Display: indicates flow & velocity
   - Totalizer display: user selectable units
• Outputs:
   - 2x 4-20 mA: galvanically isolated
   - Pulse/Alarm: Two programmable functions (pulses/alarms)
   - Pulse output for flow rate or external totalizer
   - Alarm output for forward or backward flow detection, min./max. flow
   - Outputs are isolated and protected transistor switch capable of sinking < 250 mA at < 35 V
• Communication: Modbus protocol over RS485 interface or HART protocol (optional)
• Power supply: AC: 90 to 265 VAC at 45-66 Hz (20W/25VA) or DC: 12 to 48 VDC
• Operating temperature: -20°C to +60°C

Jl. Boulevard Artha Gading - Artha Gading Niaga
Blok F/7, Kelapa Gading - Jakarta 14240 Indonesia
Telp: +62 21 45850778 / Fax: +62 21 45850779 / Mobile / WA: +6281 223 400 100
Email: salesjkt@flotech.co.id
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