Pressure Level Sensors | flowline

Pressure Level Sensors: Application-Focused Level Solutions

Flowline hydrostatic pressure level sensors support continuous liquid level measurement in open tanks, wells, reservoirs and lift stations. They are suited to water, diluted chemicals, wastewater and corrosive liquid applications, where dependable measurement or switching helps reduce manual checks and improve process visibility. Available configurations may vary by model, so match the instrument to the actual tank geometry, media and control objective.

How to choose the right configuration

  • Define the duty: continuous measurement, high or low alarm, leak detection, fill control or empty control.
  • Check the application: confirm external or submersible mounting, depth range, wetted materials, cable and signal output.
  • Plan the integration: verify power, signal, relay, PLC or controller compatibility before ordering.
  • Review installation conditions: account for obstructions, buildup, foam, vapor, temperature, pressure and access for maintenance.

Use the product data sheet for final specifications and approvals. If you are replacing an existing unit, compare the full model number, process connection, materials, cable or probe length and electrical output. Our team can help you identify a compatible Flowline solution for your tank or process.

DeltaSpan™ LD30

Explore DeltaSpan™ LD30 from Flowline for continuous hydrostatic measurement for clean liquids or gas service with a 4-20 mA output. Designed for water tanks, diluted chemicals, cutting oil and external pressure connections, these products help operators monitor inventory, prevent overfill or dry-run conditions, and connect dependable level data to pumps, valves, alarms, displays and PLC systems. Compare options by pressure range, cable or junction-box termination, process connection and wetted materials to choose a practical solution for your installation.


Details

DeltaSpan™ LD31

Explore DeltaSpan™ LD31 from Flowline for continuous hydrostatic level measurement in water and diluted chemical applications. Designed for wells, reservoirs, open tanks and water systems, these products help operators monitor inventory, prevent overfill or dry-run conditions, and connect dependable level data to pumps, valves, alarms, displays and PLC systems. Compare options by depth range, cable length, wetted materials, venting and 4-20 mA input to choose a practical solution for your installation.


Details

DeltaSpan™ LD32

Explore DeltaSpan™ LD32 from Flowline for continuous level monitoring designed for wastewater and lift-station service. Designed for wet wells, municipal lift stations, sumps and wastewater systems, these products help operators monitor inventory, prevent overfill or dry-run conditions, and connect dependable level data to pumps, valves, alarms, displays and PLC systems. Compare options by depth, cable length, fouling conditions, mounting protection and controller input to choose a practical solution for your installation.


Details

DeltaSpan™ LD33

Explore DeltaSpan™ LD33 from Flowline for hydrostatic level measurement for corrosive chemical liquids. Designed for chemical tanks, treatment systems and aggressive media, these products help operators monitor inventory, prevent overfill or dry-run conditions, and connect dependable level data to pumps, valves, alarms, displays and PLC systems. Compare options by chemical compatibility, depth range, cable material, installation and 4-20 mA integration to choose a practical solution for your installation.


Details

DeltaSpan™ LD36

Explore DeltaSpan™ LD36 from Flowline for combined hydrostatic level and temperature monitoring with dual signals. Designed for water systems, reservoirs, wells and process monitoring, these products help operators monitor inventory, prevent overfill or dry-run conditions, and connect dependable level data to pumps, valves, alarms, displays and PLC systems. Compare options by depth, temperature range, cable length, wetted materials and two input channels to choose a practical solution for your installation.


Details

DeltaSpan™ LD37

Explore DeltaSpan™ LD37 from Flowline for external hydrostatic measurement for corrosive chemical service. Designed for chemical tanks and process lines where submersion is not preferred, these products help operators monitor inventory, prevent overfill or dry-run conditions, and connect dependable level data to pumps, valves, alarms, displays and PLC systems. Compare options by pressure range, PTFE compatibility, connection, termination and 4-20 mA input to choose a practical solution for your installation.


Details

Pressure Level Sensors with sub categoryes:


DeltaSpan™ LD30

Explore DeltaSpan™ LD30 from Flowline for continuous hydrostatic measurement for clean liquids or gas service with a 4-20 mA output. Designed for water tanks, diluted chemicals, cutting oil and external pressure connections, these products help operators monitor inventory, prevent overfill or dry-run conditions, and connect dependable level data to pumps, valves, alarms, displays and PLC systems. Compare options by pressure range, cable or junction-box termination, process connection and wetted materials to choose a practical solution for your installation.


DeltaSpan™ LD31

Explore DeltaSpan™ LD31 from Flowline for continuous hydrostatic level measurement in water and diluted chemical applications. Designed for wells, reservoirs, open tanks and water systems, these products help operators monitor inventory, prevent overfill or dry-run conditions, and connect dependable level data to pumps, valves, alarms, displays and PLC systems. Compare options by depth range, cable length, wetted materials, venting and 4-20 mA input to choose a practical solution for your installation.


DeltaSpan™ LD32

Explore DeltaSpan™ LD32 from Flowline for continuous level monitoring designed for wastewater and lift-station service. Designed for wet wells, municipal lift stations, sumps and wastewater systems, these products help operators monitor inventory, prevent overfill or dry-run conditions, and connect dependable level data to pumps, valves, alarms, displays and PLC systems. Compare options by depth, cable length, fouling conditions, mounting protection and controller input to choose a practical solution for your installation.


DeltaSpan™ LD33

Explore DeltaSpan™ LD33 from Flowline for hydrostatic level measurement for corrosive chemical liquids. Designed for chemical tanks, treatment systems and aggressive media, these products help operators monitor inventory, prevent overfill or dry-run conditions, and connect dependable level data to pumps, valves, alarms, displays and PLC systems. Compare options by chemical compatibility, depth range, cable material, installation and 4-20 mA integration to choose a practical solution for your installation.


DeltaSpan™ LD36

Explore DeltaSpan™ LD36 from Flowline for combined hydrostatic level and temperature monitoring with dual signals. Designed for water systems, reservoirs, wells and process monitoring, these products help operators monitor inventory, prevent overfill or dry-run conditions, and connect dependable level data to pumps, valves, alarms, displays and PLC systems. Compare options by depth, temperature range, cable length, wetted materials and two input channels to choose a practical solution for your installation.


DeltaSpan™ LD37

Explore DeltaSpan™ LD37 from Flowline for external hydrostatic measurement for corrosive chemical service. Designed for chemical tanks and process lines where submersion is not preferred, these products help operators monitor inventory, prevent overfill or dry-run conditions, and connect dependable level data to pumps, valves, alarms, displays and PLC systems. Compare options by pressure range, PTFE compatibility, connection, termination and 4-20 mA input to choose a practical solution for your installation.