Key Features
Material: AISI 316/316L stainless steel for wetted parts, offering excellent corrosion resistance.
Construction: Robust, all-metal design, often with a safety case (S3) including a baffle wall and blow-out back for operator protection.
Accuracy: High precision for critical process control.
Applications: Filter monitoring, flow measurement (with orifice plates), tank level, liquid gas tanks, boiler systems, water/wastewater, chemical/petrochemical.
Versatility: Can handle high static pressures, operate in extreme temperatures, and measure liquids, gases, or steam.
Working Principle
Pressure Application: High and low pressures are applied to separate ports.
Sensing Element: A diaphragm or twin bellows deflects proportionally to the pressure difference.
Indication: A linkage and gear mechanism magnifies the movement, moving a pointer across a calibrated dial.
Types & Options
Bellows Type: Uses twin corrugated bellows for sensing.
Bourdon Tube Type: Uses Bourdon tubes for high-pressure applications.
Digital Outputs: Optional transmitters provide 4-20 mA signals.
Switch Contacts: For automated alarms and process control.
Dual Scale Dials: Can display flow rate (GPM, etc.) alongside pressure.
Why Stainless Steel?
Stainless steel construction ensures longevity and reliability in aggressive chemical environments where standard materials would corrode, making them essential for accurate differential pressure measurement in demanding industries.
