Rugged field hardware built to withstand high pressure, vibration and hazardous chemical environments, from a local dial gauge to a remote-seal differential pressure transmitter.
Pressure is the most widely measured process variable. It keeps pipelines and vessels inside safe limits, controls pumps and compressors, and is the basis for many level and flow measurements.
We select the measuring cell, wetted materials, process connection and output to suit the medium and its temperature, whether that is clean water, saturated steam or a hot, corrosive product.
Typical applications
Where it is used
6 options. We recommend the one that suits your application, not the one that happens to be in stock.
High-quality mechanical gauges for the process industry, including safety-pattern designs for increased safety requirements. No power, always readable at the point of measurement.
Best for
Local indication on pumps, vessels and pipelines
Metallic or ceramic measuring cells for gases, vapours and liquids. Options include hygienic process adapters, an on-site display with local operation and 360° switching status indication.
Best for
General process, utilities and hygienic lines
A ceramic-cell hydrostatic transmitter for level measurement in water, wastewater, deep wells and ship tanks.
Best for
Wells, reservoirs, wet wells
A diaphragm seal isolates the sensor from the process. Matched to each application for highly corrosive, crystallising or very hot products.
Best for
Corrosive and hot media
Measures the difference between two points for filter monitoring, flow across a primary element and level in pressurised vessels. Electronic DP pairs two sensors and removes impulse lines and capillaries.
Best for
Filters, flow elements, closed tanks
Mechanical and electronic switches for pump protection, compressor control and simple high/low alarms.
Best for
Pump and compressor protection
Gas, vapour or liquid, and how aggressive it is. This decides wetted materials and whether a chemical seal is needed.
Process temperature drives the choice between direct mounting, cooling elements and remote seals.
Gauge, absolute or differential? Size the range so normal operation sits comfortably mid-scale.
Threaded, flanged or hygienic connection, plus the signal your control system expects.
Gauge pressure is measured relative to atmospheric pressure. Absolute pressure is measured relative to a perfect vacuum. Differential pressure is the difference between two process points, used for filter monitoring, flow across a primary element and level in pressurised tanks.
When the process medium is highly corrosive, very hot, viscous, crystallising or must be kept hygienic. The seal isolates the sensor from the process and transfers the pressure through a fill fluid.
Yes. In an open tank, the hydrostatic pressure at the bottom is proportional to the liquid height, so a pressure or submersible transmitter can report level. In a closed, pressurised tank a differential pressure transmitter is used to cancel out the gas pressure above the liquid.
Typically 4–20 mA, with HART for remote configuration and diagnostics. They can be wired directly into PLC, SCADA and data logging systems.
