Electromagnetic flowmeter shell material: carbon steel, SS304, 316L
Commonalities
Structural Strength: All three types possess sufficient mechanical strength to provide robust physical protection for the electromagnetic flowmeter's sensor and converter, resisting certain external impacts and pipe stresses.
Protection Function: Their core function is to achieve IP65 and IP68 protection levels, protecting the internal components from dust, moisture, and water intrusion.
Magnetic Permeability and Electromagnetic Compatibility: For electromagnetic flowmeters, the housing must provide some shielding against magnetic interference. Carbon steel, a magnetic material, offers the best shielding effect. 304 and 316L stainless steels are non-magnetic or weakly magnetic, but their conductivity is sufficient to provide some electromagnetic shielding.
How to Choose:
Is the environment significantly corrosive (moisture, chemicals, salt spray)?
No → Consider carbon steel (pay attention to budget and maintenance).
Yes → Proceed to the next step.
Is the environment exposed to chloride ions (e.g., near the ocean, salt water, bleach, etc.)?
No → 304 stainless steel is the most economical and practical choice.
Yes → 316L stainless steel is strongly recommended.
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