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Rosemount 8721 Hygienic Magnetic Flow Meter Sensors
The Rosemount 8721 Hygienic Magnetic Flow Meter Sensor uses an all-welded meter body that is specifically designed for food, beverage and life science applications that demand safe, hygienic and reliable performance.
All contact surfaces are constructed of FDA-approved materials designed in accordance with 3A standards. Additionally, the 8721 is available with a variety of sanitary process connections with easily accessed process gaskets to facilitate efficient inspection and maintenance.
Rosemount 8721 Hygienic Magnetic Flow Meter Sensors


Up to 0.25% of volumetric flow rate accuracy over 13:1 flow turndowns, 0.5% over 40:1 flow turndown
Line Sizes
½-4 inch (15-100 mm)
Liner Materials
Electrode Materials
316L Stainless Steel, Nickel Alloy, Platinum
Consult factory for additional material options
Process Connections
Tri-Clamp® Sanitary Coupling
IDF Sanitary Coupling (screw type)
Weld Nipple
DIN 11851 (Imperial and Metric)
DIN 11864 (-1 and -2 Form A)
SMS 1145
DEN US 50 Weld Nipple
Product Certifications
3-A, EHEDG Type EL, PMO (M-b-350)
Compatible with all 8700 Series transmitters
Compatible with Legacy transmitters: 8712D, 8712C, 8732C, 8742C


  • Lightweight, compact stainless steel design makes installation easy
  • Rely on FDA-approved materials including 3-A finish certified by EHEDG for use in Grade A milk
  • Fully-welded meter body design allow for safety in hygienic applications
  • Sensor is CIP/SIP cleanable and the sensor I.D. matches the process piping to eliminate hard-to-clean step changes
  • Satisfy virtually any requirement with a variety of available sanitary process connections
  • Better facilitate inspection and maintenance with easily accessed process gaskets
  • Cut costs and improve efficiency with an obstructionless design featuring no moving parts to maintain or repair