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Steam Pressure Transducers

Amplified voltage output transducers for use in applications for measuring pressure of high temperature steam such as sterilizing autoclaves, food processing and power generation.

These pressure transducers are designed for high-temperature steam environments, incorporating innovative integral cooling features to protect sensitive electronics and ensure accurate, reliable measurements. These devices, offering amplified voltage outputs, are crucial for demanding applications such as sterilizing autoclaves, food processing systems, and power generation plants, where standard transducers would falter due to thermal stress. By focusing on robust thermal management and precise signal conditioning, these transducers provide the durability and precision required for optimal process control and safety in steam-based operations.

  • Vacuum and steamer pressure transducer with -30 inHg to 100 psi range - Pressure transducer with an output voltage of 1-5V, able to withstand up to 150 C on the pressure side
  • -0.9 to +2.2 bar g Autoclave pressure transducer - This autoclave pressure sensor provides accurate pressure monitoring in medical, pharmaceutical, and industrial sterilization applications. Its robust design and integrated cooling element ensure reliable performance in demanding environments.
  • DMP331P Hygienic Flush Pressure Transmitter
  • DMK331P Flush Diaphragm Pressure Sensor
  • DS200P Sanitary Low Range Pressure Gauge, Switch and Sensor
  • ASMT Miniature Combined Temperature and Pressure Transducer
  • DS201P High Range Flush Pressure Gauge, Switch and Sensor
  • 20 bar absolute steam pressure transducer
  • 180 degC pressure sensor for saturated steam up to 10 bar

Find out more about Steam Pressure Transducers to determine which product options and capabilities will best meet your application requirements.

Steam pressure transducers are specifically engineered to address the rigorous demands of measuring steam pressure, particularly where high temperatures pose a significant challenge to conventional instrumentation. These devices are essential in applications where the media itself, such as superheated or saturated steam, would typically compromise the accuracy, longevity, and operational safety of standard pressure sensors due to thermal over-ranging of their electronic components and sensing elements. The defining characteristic of these specialized transducers is the incorporation of integral cooling features, designed to thermally isolate or actively dissipate heat from the sensitive internal electronics and the pressure-sensing diaphragm.

This thermal protection is not merely an add-on but a fundamental design consideration, often involving a physical separation or a heat-sink mechanism, such as an extended diaphragm seal, an elongated neck, or specialized cooling fins integrated into the transducer’s body. These features create a thermal gradient, ensuring that the temperature at the electronic components remains within their safe operating limits, even when the process connection is exposed to extreme steam temperatures. Consequently, these transducers can deliver reliable and accurate pressure readings in environments that would otherwise lead to rapid degradation, signal drift, or complete failure of unprotected devices.

The amplified voltage output from these steam pressure transducers is another critical design aspect, providing a robust and clear signal that is less susceptible to electrical noise, which is often prevalent in industrial environments where steam applications like power generation or large-scale food processing equipment are common. This strong signal is ideal for transmission over longer distances to data acquisition systems, programmable logic controllers (PLCs), or dedicated process controllers, facilitating precise monitoring and control of steam-based processes. The availability of various standardized voltage outputs, such as 0-5Vdc or 0-10Vdc, simplifies integration into existing control architectures.

In practical terms, the application of these transducers is vital in sterilizing autoclaves, where precise steam pressure and temperature control are paramount for achieving effective sterilization in medical, pharmaceutical, and laboratory settings. The integrity of the cooling mechanism ensures consistent performance cycle after cycle. Similarly, in food processing industries, these transducers are employed in steam cookers, pasteurization systems, and sterilization processes where maintaining specific steam pressures directly impacts product quality and safety, and where hygienic design considerations may also be important. For power generation, they are indispensable for monitoring steam conditions in turbines, boilers, and associated pipework, contributing to operational efficiency and the prevention of hazardous conditions by ensuring steam pressures remain within designated parameters. Selecting the appropriate transducer involves considering not only the maximum steam temperature and pressure but also the compatibility of wetted materials with the steam quality and any potential chemical contaminants.

Contents

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  • Product Help
    • Steam temperature
    • Maximum operating temperature
    • Higher temperature steam protection
    • Checklist for steam pressure transducer requirements

Product Help

Steam temperature

Is steam temperature always the same value?

Under standard atmospheric conditions water turns to a gas and produces steam at a temperature of 100 degC / 212 degF, however this boiling point temperature is dependent on the pressure. As the pressure increases, the point at which water turns to a gas is a higher temperature. For example at a pressure of 10 bar gauge, the temperature at which steam is produced is 184 degC / 363.2 degF.

Maximum operating temperature

What is the highest operating temperature limit of the pressure transducer?

When specifying a pressure transducer for use on steam, it is important to determine the steam temperature by using a published table, online calculator or formula. At higher pressures it will become increasingly difficult to find suitable pressure transducers because many will not have a sufficiently high enough maximum operating temperature.

Higher temperature steam protection

How are pressure transducers protected from steam at higher temperatures?

Many of the pressure transducer technologies that are widely used by manufacturers are not suitable for direct contact with high temperature steam, with typical operating limits from 100 to 125 degC / 212 to 363.2 degF. Therefore it is necessary to add protection components between the pressure transducer and steam to act as a heat sink to cool the media in close proximity to the transducer.

The high temperature protection components vary in mechanical design; some allow the steam to pass through, whilst others will isolate the steam using an oil filled isolation diaphragm seal. The majority of these design concepts rely on providing sufficient surface area of thermally conductive material to make contact with the surrounding cooler ambient air, and a restriction to reduce steam volume or a membrane to block it altogether, to increase the cooling effect.

Checklist for steam pressure transducer requirements

Define your steam pressure transducer requirements using this checklist:

  1. Pressure range?
  2. Voltage output type?
  3. Accuracy?
  4. Electrical connection?
  5. Media type? Steam
  6. Maximum media temperature?
  7. Maximum ambient temperature?
  8. Process connection?

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Pressure Sensor Technology Guide

Rating table for performance of different pressure sensor technology types

Compare performance of the most popular pressure sensor technology types and how they rate for different application requirements

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