DST P40I titanium pressure transmitter for in corrosive environments and aggressive media

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DST P40I pressure transmitter for use in desalination systems, seawater cooling, and chemical processing

For use in corrosive environments, Danfoss offers the robust DST P40I pressure transmitter made of Titanium and with ceramic pressure sensing element. DST P40I is optimized for use in applications such as desalination systems, seawater cooling, and chemical processing. The transmitter housing is made from high-strength Titanium Grade 2, which is exceptionally resistant to a wide range of acids, alkalis, Sodium Chloride, and polluted water. The pressure sensing element is made from ceramic AI2O3 96% with superior chemical immunity. The pressure transmitter works following the piezo resistive principle, and the Wheatstone Bridge is printed directly on the inside of the ceramic diaphragm to ensure fast response time and a high degree of precision in measurements. DST P40I has been designed and tested to be highly resistant to continuous vibrations and cavitation in reverse osmosis desalination pump systems.

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Features and benefits

High corrosion resistance, designed for use in harsh environments

Transmitter housing made of Titanium Grade 2

Ceramic sensing element made of AI2O3 96%

Pressure range 4-100 bar (standard) 

Accuracy ± 1.5% FS (typical)

Temperature range 0-80°C

Output signal: 4 – 20 mA

Outstanding shock and vibration performance

Excellent EMC immunity, ensuring a failsafe measuring signal

Sea Water Reverse Osmosis (SWRO)

Sea Water Reverse Osmosis may hold the key to prevent a global water crisis, but it requires powerful technology to be viable on a global scale.

Our four core technologies work together to make SWRO efficient and environmentally friendly.

DST P40I part of our desalination solution

The Danfoss DST P40I is a robust and accurate pressure transmitter designed specifically to meet requirements in desalination systems.


Type Name Language Valid for Updated Download File type
Brochure Core technologies to increase the energy efficiency of your desalination system English Multiple 13 Jan, 2022 9.4 MB .pdf
Article Creating a sustainable future with seawater French Multiple 26 Jan, 2021 1.8 MB .pdf
Article Creating a sustainable future with seawater English Multiple 04 Dec, 2018 1.2 MB .pdf
Article Creating a sustainable future with seawater Turkish Turkey 09 Feb, 2021 9.7 MB .pdf
Data sheet DST P40I Pressure transmitter for seawater data sheet Polish Poland 29 Jan, 2019 490.3 KB .pdf
Data sheet Pressure transmitter, type DST P40I English Multiple 26 Feb, 2021 1.6 MB .pdf



Approval Certificates

Type Name Approval authority Language Valid for Download Expiration date File type
EU-UK Declaration Danfoss EU-UK 078R0006.04 English Multiple 1.4 MB .pdf
Electrical Safety Certificate UL E31024 English Multiple 5.0 MB .pdf

Related solutions

  • if (isSmallPicture) { Water desalination applications - Danfoss; } else if (isBigColumns) { Water desalination applications - Danfoss } else { Water desalination applications - Danfoss }

    Due to high energy efficiency and reliability, Sea Water Reverse Osmosis (SWRO) is one of the most sustainable and cost effective solutions for converting sea water to potable fresh water. Danfoss is committed to supporting the desalination industry with energy efficient SWRO solutions.