
The DMP331P hygienic flush pressure transmitter is designed for level measurement in dairy applications, particularly milk storage silos. It features a 316L stainless steel diaphragm that withstands harsh CIP cleaning agents. The IP68 cable gland protects against dust and water ingress. With a 4-20mA output and DN25 dairy pipe connection, it integrates easily into dairy processing systems for accurate level measurement while maintaining hygiene.
The DMP331P is a hygienic flush pressure transmitter specifically designed for the dairy industry. It’s ideal for measuring the level of milk in storage silos up to 6 meters high, even with the challenging conditions presented by Cleaning in Place (CIP) procedures. These procedures, essential for maintaining hygiene standards in dairy processing, involve the use of strong alkaline and acidic solutions that can damage standard sensors. The DMP331P, however, is built to withstand these aggressive cleaning agents.
What sets the DMP331P apart is its robust construction and use of food-grade materials. The diaphragm, a critical component that comes into direct contact with the milk, is made of 316L stainless steel. This grade of steel is known for its excellent corrosion resistance, even in harsh environments. This ensures the sensor remains accurate and reliable over an extended period, reducing the need for frequent replacements and minimizing downtime.
Furthermore, the DMP331P is equipped with an IP68 cable gland. This rating signifies that the gland provides complete protection against dust and prolonged immersion in water, making it ideal for withstanding the washdown procedures common in dairy processing facilities. This also contributes to the longevity of the sensor, as it prevents water ingress that could damage the electronics.
The DMP331P is designed for easy integration into existing control systems. It provides a standard 4-20mA output signal, a widely used format in industrial automation. This allows for straightforward connection to PLCs, SCADA systems, and other monitoring equipment. The sensor can also be supplied with a 3-meter cable, simplifying installation and reducing the need for additional wiring.
A key safety feature of the DMP331P is the food-grade oil fill within the sensor. In the unlikely event of diaphragm failure due to mechanical damage, this oil acts as a barrier, preventing contamination of the milk and ensuring product safety. The “dairy pipe DN25” pressure connection ensures compatibility with standard dairy piping systems, facilitating straightforward installation and maintenance.

DMP331P Hygienic Flush Pressure Transmitter
- Pressure Range: 0 to 6mH2O g
- Output Signal: 4-20mA (2 wire)
- Accuracy: 0.35% FS
- Electrical Connection: Cable gland IP68 (temp immersion)
- Length of Cable (metres) if required: 3
- Media and Temperature: Food grade, 125degC max
- Pressure Connection: Dairy pipe DN25
- Diaphragm Material: Stainless Steel 316L