Product Introduction
The GT300-INT type (for large diameters) electromagnetic flowmeter is a measuring instrument consisting of an insertion-type electromagnetic sensor and a converter. By drilling a hole and inserting only the sensor instead of replacing the entire pipe, it allows for highly economical installation in large pipelines. It is used to measure the volumetric flow rate of various conductive liquids, such as water or chemical solutions.
Product Features
Easy Installation and Maintenance: Utilizing the ball valve option, the "insertion-type" structure allows for installation and removal without shutting down the process, even under low pressure or water supply interruption, making it highly convenient for upgrading or maintaining existing piping.
High Durability and Reliability: With no internal rotating or moving parts, the structure is simple, significantly reducing the risk of failure.
Measurement stability: Accurate measurements can be made without being affected by changes in fluid temperature, pressure, density, viscosity and conductivity (at 20us/cm or higher).
Cost-Effectiveness: Manufacturing and installation costs are lower compared to standard full-bore flowmeters, offering excellent cost performance, especially when measuring medium to large-sized pipelines.
Minimization of Pressure Loss: There is almost no pressure loss caused by the sensor, resulting in low energy consumption.
Diverse Output Signals: $4\sim20\text{mA}$ standard current and frequency output.
Communication Interface: Supports RS485, HART, etc.
Applications
It is widely applied in various industrial sectors that use conductive fluids, such as water pipelines in large-scale industrial complexes, large piping in power plants, and jobsites where flowmeters need to be retrofitted onto existing pipelines.
- Water Treatment: Water supply and drainage systems, sewage and wastewater treatment, irrigation facilities.
- Heavy Industry/Manufacturing: Steel, metallurgy, chemical industry, paper industry.
- Others: Fertilizer production and various industrial sectors.
General Specifications
| 항목 (Specifications) | ![]() | ![]() |
| Model Type | Integral type | Remote separate type |
| Accuracy | ±1.5~2% of reading value | ±1.5~2% of reading value |
| Conductivity | 20 Micro Siemens | 20 Micro Siemens |
| Measuring range | 0.5 ~ 10m/sec | 0.5 ~ 10m/sec |
| Flow Direction | Bi-direction. | Bi-direction. |
| Diameter mm | M: DN100~900mm | L: DN1000~6000mm |
| Medium Pressure | 1.6 / 1.0 / 0.6 MPa | 1.6 / 1.0 / 0.6 MPa |
| Temperature | 0 ~ 80°C, 0 ~ 120°C (Option) | 0 ~ 80°C, 0 ~ 120°C (Option) |
| Connection | Thread / Flange ball valve | Thread / Flange ball valve |
| Electrode | SUS316L, Titanium, Hastelloy | SUS316L, Titanium, Hastelloy |
| Protection | IP65, IP67, IP68 | IP65, IP67, IP68 |
| Power | AC 85~240V (Option: DC 24V) | AC 85~240V (Option: DC 24V) |
| Output | 4~20mA, Pulse, RS485, HART | 4~20mA, Pulse, RS485, HART |
| Display | LCD (Flow rate, Totalizer) | LCD (Flow rate, Totalizer) |
| Connections | M20×1.5, 1/2″ NPT | M20×1.5, 1/2″ NPT |





