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Food-Grade Pressure Sensor Separator
Operating principle
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A food-grade separator (diaphragm isolator) protects the pressure sensor from aggressive, viscous, or particle-laden fluids while ensuring continuous and accurate pressure measurement.
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The process fluid never contacts the sensor directly: it acts on a diaphragm, which transmits the pressure via a food-safe transmission fluid to the sensor.
Food-Grade Pressure Sensor Separator
Food-Grade Pressure Sensor Separator
Operating principle
-
A food-grade separator (diaphragm isolator) protects the pressure sensor from aggressive, viscous, or particle-laden fluids while ensuring continuous and accurate pressure measurement.
-
The process fluid never contacts the sensor directly: it acts on a diaphragm, which transmits the pressure via a food-safe transmission fluid to the sensor.
€0.00
Tax included
Construction
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Separation diaphragm:
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Made of inert, food-compliant materials (stainless steel AISI 316L, PTFE, Hastelloy…).
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Isolates the process fluid from the sensor, preventing contamination.
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Transmission chamber:
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Filled with neutral, hygienic transmission fluid.
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Transmits the diaphragm pressure linearly and reliably to the sensor.
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Pressure sensor:
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Can be stainless steel, ceramic, or other suitable materials.
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Converts the transmitted pressure into an electrical signal for continuous monitoring.
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Advantages
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Hygienic and food-compliant (FDA, EHEDG).
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Protects the sensor from corrosion, clogging, and abrasive fluids.
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Enables continuous pressure measurement in challenging processes.
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Compatible with CIP/SIP (cleaning and sterilization in place).
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Suitable for viscous, pasty, or particle-laden fluids.
Limitations
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Slightly more complex than a direct sensor → higher cost.
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Requires regular maintenance of the transmission fluid to ensure accuracy.
Applications
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Food industry: sauces, purees, milk, juice, beer, dairy products.
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Pharmaceutical: gels, syrups, sterile suspensions.
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Biotechnology and fine chemicals: sensitive or abrasive fluids.
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Aquaculture: continuous pressure monitoring in circuits with particles or organic matter.
