How does the lifecycle cost of the LGF-PA66 composite electromagnetic flow meter compare with a stainless steel one?

On purchase price alone the two are close at the same size — the real gap opens up over a 10-year operating cycle.

• Purchase: at DN300 and larger, the LGF-PA66 is usually cheaper; its weight is roughly one-third of the stainless steel version, cutting transport and rigging costs.
• Installation: small and mid-size PA66 meters are handled by hand — no crane rental, and installation time is typically halved.
• Maintenance: stainless bodies rely on linings and exotic electrode alloys for corrosion protection; linings age and peel, electrodes corrode in aggressive media, and shutdown inspections or replacements are typically needed every 3–5 years. PA66's corrosion resistance is the body itself — design life reaches 15+ years in seawater and chemical effluent, with virtually no corrosion-related maintenance.
• Downtime: a failed body means shutting the line; in continuous processes, one day of downtime can cost more than the meter.

For a typical municipal DMA point at DN200, our estimates put the 10-year total cost of ownership of the LGF-PA66 roughly 30%–40% below a 316L stainless steel meter. See our technical documentation for the detailed calculation worksheet.

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