PA66 Aviation-Grade Electromagnetic Flow Meter LGF-PA66 vs. Traditional Stainless Steel: Which Should I Choose?

The core difference between the LGF-PA66 and conventional stainless steel electromagnetic flow meters lies in the body material and manufacturing process. The LGF-PA66 uses aviation-grade PA66 composite with an injection-molded, one-piece body — no welded seams, no magnetic interference from welding stress, and corrosion resistance that comes from the material itself rather than from linings or exotic electrode alloys.

Selection guidance:

• Corrosive media (seawater, chemical effluent, high-chloride water): choose the LGF-PA66. PA66 resists corrosion inherently and does not suffer the pitting or crevice corrosion that 304/316L stainless steel faces in chloride environments.
• High-pressure / high-temperature lines: above 120 °C medium temperature or 4.0 MPa line pressure, check the LGF-PA66 pressure-temperature derating curve; stainless bodies tolerate a wider envelope.
• Cost-sensitive large-bore projects: at DN100–DN1000 the LGF-PA66 offers clear weight and cost advantages and needs no heavy lifting equipment during installation.

Measurement accuracy matches the stainless steel series at ±0.5%（DN50-100） (±0.5% optional), with IP68 protection for long-term immersion. For municipal DMA district metering, seawater aquaculture, and chemical effluent applications, the LGF-PA66 delivers the better cost-performance ratio.

For more details, please visit our product pages or contact our technical team.