Hongnuo (shenyang) General Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of water flow meter electromagnetic in China. Welcome to buy high quality water flow meter electromagnetic at competitive price from our factory. We also accept customized orders.

Products Description

Parameter	Specification / Value
Diameter range	DN10 – DN2600 (custom up to DN3000)
Accuracy(incl. non‑linearity, hysteresis, repeatability)	≤±0.25% FS (typical) / ≤±0.5% FS (max)
Fluid temperature	–20°C … +180°C (depends on liner material)
Output signals	4‑20mA, 0‑1kHz pulse, HART, RS232, RS485
Protection / Ex rating	IP65 / IP68 (optional); Exd IICT2‑6
Response time	<40 ms (typical)
Excitation method	Three‑amplitude low‑frequency rectangular wave + high‑frequency
Power supply	220VAC±10%, 24VDC±10%, or 3.6V lithium battery

Please see the Specifications for more details.

>View all specifications

Principle

Coils generate magnetic field (B). Conductive flow (V) induces voltage (E) at electrodes.
E = k · B · D · V
No moving parts. No pressure drop.

.

Key Advantages

straight-through. No obstructions. Zero pressure drop. No moving parts – wear-free. Dual excitation coils deliver stable signal even near VFDs.

Electrodes: 316L, Hastelloy, Tantalum, Ti, Pt, WC. Liners: PTFE, F46, PU, CR. Match material to media – acid, alkali, slurry, or high temp.

Applications

Installed in chlor-alkali pipe racks. PTFE liner + tantalum electrodes. Accuracy stable at ±0.35% under 10V/m EMI from electrolysers. Unplanned downtime cut by 70%.

Submersible installation in wastewater lift station. IP68 rated. Lower coil housing fully submerged. Real-time flow data via RS485 to central SCADA. Results: aeration energy reduced by 18% at a 300,000 m³/d treatment plant.

Installed in pulp stock / ore slurry lines. PU liner + tungsten-carbide electrodes. Flow error dropped from ±3% to ±0.8% at a major paper mill. Raw material cost saving >$200k/year.

HNF60 Electromagnetic Flowmeter
Specific Parameters	Value / Description
Measurement Principle	Electromagnetic flowmeters operate based on Faraday's law of electromagnetic induction. When a conductive liquid flows through the sensor's magnetic field, it induces an electromotive force (voltage signal) proportional to the flow rate. The sensor detects this signal through one or more pairs of electrodes and processes and linearizes it via an integrated smart converter, thereby accurately calculating the volume flow rate of the liquid, achieving non-contact and obstruction-free flow measurement.
Nominal Diameter Range	DN10 ~ DN2600
Wetted Parts Material	Electrode materials: platinum, Hastelloy, titanium, 316L, tungsten carbide, etc.; Lining materials: PTFE, neoprene, F46, polyurethane, etc.; Main body and flange materials: carbon steel (standard), stainless steel (customized)
Connection Method	Flange connection.
Maximum Measurement Error	Accuracy ≤±0.25% FS (typical), ≤±0.5% FS (maximum).
Measurement Range	Flow velocity range: 0.1 ~ 15 m/s.
Maximum Process Pressure
Medium Temperature Range	Sensor temperature: -20℃ ~ 180℃ (depending on the lining material); Converter temperature: -25℃ ~ 70℃.
Ambient Temperature Range	Sensor: -40℃ ~ 80℃; Converter: -25℃ ~ 70℃.
Transmitter Housing Material	Cast aluminum alloy.
Display/Operation	Digital LCD display for instantaneous and cumulative flow.
Inputs	Analog input (e.g., 4-20mA).
Outputs	4-20mA, pulse (0-1kHz), HART, RS232, RS485.
Power Supply	220VAC±10%; 24VDC±10%; Lithium battery (3.6V)
Certificate	CE, Explosion-proof grade Exd IICT2…6, Protection level IP65/IP68
Functional Safety	SIL 2