Flowphant T DTT31
Flow switch

Safe monitoring of flow rates and temperature in industrial processes. Compact and cost-saving

DTT31

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5-year warranty

Engineered for Confidence

Our Fundamental Selection instruments feature an extended 5-year warranty – a clear testament of our trust in their long-term reliability and performance.

Should a warranty case occur, you can count on a fast replacement process and minimal administrative effort – giving you peace of mind when it matters most and helping you keep your operations running smoothly.

Warranty terms apply

The extended warranty is subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

Specs at a glance

Max. measurement error

2% - 10% (per measurement range)
Medium temperature range

-20...+85°C
(-4...+185°F)
CIP-able to 130°C / 266°F
Max. process pressure

100 bar (1.740 psi)

See all specifications

Field of application

The switch is designed for the safe measurement, display and monitoring of relative mass flow rates of liquid media with practically no pressure loss. It can be selected between one or two switch outputs as well as one switch output and one standardized analog output for flow rates or temperature values. Typical applications are: Monitoring cooling water circulation processes or lubrication systems of pumps and heat exchangers or leak monitoring in process lines.

Flow switch for monitoring and displaying relative mass flow rates of liquid media in the range from 0.03 to 3 m/s (0.1 to 9.84 ft/s). Flowphant T DTT31 − with thread connections or coupling.

Application examples:

Monitoring cooling water circulation systems of pumps, turbines, compressors and heat exchangers
Leak monitoring in process lines
Monitoring pump functionality
Monitoring lubrication systems
Filter monitoring in the beverage industry

Benefits

Practically no pressure loss
Configuration software FieldCare for quick configuration and reliable storage of device settings
Optional: second switch output or 4 to 20 mA analog output for temperature monitoring or for outputting the flow as a percentage
Function check and process information onsite thanks to digital display at device
Top housing section which can be rotated 310° and rotatable display make it possible to read the measured values in all orientations
Marine approval

Fundamental selection

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

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Success stories

Driving accuracy in space propulsion

Protolaunch uses Endress+Hauser flowmeters and level sensors at a rocket propulsion test facility in Buckinghamshire to demonstrate the performance of the propulsion systems and components.
Read the full story
High-quality instrumentation for cooling water systems

Torishima designs and builds large cooling water systems for customers in the Middle East, relying on Endress+Hauser instrumentation for the quality and performance of the products.
Read the full story
Automated solution for optimized quality control

The Vialit Group manufactures various products for road maintenance. Mixing semifinished products requires exact measurement of flow rate and viscosity. Promass I 500 delivers this with distinction.
Read the full story
Measuring technology for sustainable power network expansion

Read how Hölscher Wasserbau extracts, treats and reintroduces groundwater sustainably during the construction of the A-Nord high-voltage DC power line, while adhering to environmental regulations.
Read the full story
High functionality and compact design

High functionality and compact design - Ehrmann AG places its trust in the Picomag Inline flowmeter from Endress+Hauser
Read the full story

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Flowphant T DTT31Flow switch

Safe monitoring of flow rates and temperature in industrial processes. Compact and cost-saving

Specs at a glance

Max. measurement error

Medium temperature range

Max. process pressure

Field of application

Benefits

Fundamental selection

Success stories

Driving accuracy in space propulsion

High-quality instrumentation for cooling water systems

Automated solution for optimized quality control

Measuring technology for sustainable power network expansion

High functionality and compact design

Measuring principle

Product headline

Nominal diameter range

Max. measurement error

Max. process pressure

Medium temperature range

Degree of protection

Display/Operation

Outputs

Back

Flowphant T DTT31, DTT35

TI Weld-in adapter, process adapter and flanges

Flowphant T DTT31, DTT35

Flowphant T DTT31, DTT35

Device viewer

UKCA marking

Product family: Accessories: RTD insert, Accessories: TC insert, Accessories: Inserts, Magphant, Multipoint thermometers, Process RT D direct contact, Process RTD general purpose, Process RTD heavy duty, Process RTD hygienic, Process TC heavy duty, RTD thermometer

Product family: Magphant

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Gasket rubber cap CDI-connector

Compression Fitting TA50

Configuration Kit TXU10

Cable M12x1 l=5m

M12 elbow plug ready for cable, IP67,PG7

Collar welded socket d6 PEEK w/o screw

Collar welded socket d6 PEEK + screw

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Flowphant T DTT31
Flow switch