Monitor critical pressure points in your RO desalination system using the DMK 457 pressure sensor with 4-20mA output and G1/2 DIN3852 process connection for easy integration.
The DMK 457 pressure sensor is specifically designed to withstand the harsh conditions encountered in reverse osmosis desalination plants. These environments present unique challenges for pressure measurement due to the high salinity and corrosive nature of seawater. This sensor’s robust construction, featuring a CuNi10Fe1Mn housing and ceramic diaphragm, ensures long-term reliability and accurate pressure readings in such demanding applications.
The sensor’s compatibility with seawater is crucial in reverse osmosis desalination, where it can be used to monitor various critical pressure points throughout the process. For instance, it can be employed to measure the pressure of the intake seawater, the pressure across the membrane, or the pressure of the product water. Accurately monitoring these pressures is vital for optimizing the desalination process, ensuring efficient operation, and preventing damage to the membrane.
The DMK 457‘s pressure range of 0 to 1500 psi gauge makes it suitable for a wide range of reverse osmosis desalination systems, from small-scale units to large industrial plants. The sensor’s 4-20mA output signal provides a standardized and reliable means of transmitting pressure data to monitoring and control systems. This allows for real-time monitoring of the desalination process and enables operators to make necessary adjustments to maintain optimal performance.
In addition to its use in desalination plants, the DMK 457‘s seawater compatibility makes it suitable for other marine applications. For example, it can be used to monitor pressure in seawater cooling systems, ballast tanks, or pipelines. Its versatility and robust design make it a valuable tool for any application requiring accurate and reliable pressure measurement in seawater environments.

DMK 457 Saltwater Compatible Pressure Sensor
- SKU ID: s1-dmk457-91-16984
- Pressure Range: 1500
- Units: psi
- Range Type: Positive Gauge (atm to +P)
- Output Signal: 4 – 20 mA, 2-wire
- Accuracy: 0.5% FS
- Electrical Connection: TPE cable IP68 (temporary immersion)
- Cable Length: 5
- Cable Length Units: metres (m)
- Process Connection: G1/2 DIN3852
- Housing & Process Connection Material: CuNi10Fe1Mn Seawater Compatible (400 bar max. range, G threads only)
- Diaphragm Material: Ceramic Al2O3
- Media Exposed Seals: FKM