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Diaphragm seals for the food ­industry
March 2017, Pressure Measurement & Control

Diaphragm seals are partitions for pressure gauges that prevent material that is being measured from penetrating the measuring system. Pressure gauges cannot always be connected directly to the process connection. For measuring pressure in the food industry, diaphragm seals are indispensable. With the right choice of diaphragm seal system, it is possible to solve measuring problems that can often not be overcome with a pressure gauge alone.

Kobold has on offer an extensive range of diaphragm seals specifically for such purposes. They are available with all industry standard connection types and fit perfectly with Kobold pressure gauges. These diaphragm seals allow measurements to be taken, even with aggressive, highly viscous, solidifying or crystallising process media. They also protect the measuring device against high temperature and pressure fluctuations, pressure peaks or vibrations. Depending on the design, they can be used for measurements at process temperatures up to 350°C and 1600 bar. The use of diaphragm seals is recommended where there are special hygiene requirements and specific media-appropriate materials are required. Kobold’s specifically engineered and practice-oriented diaphragm seal system components, make dead zone free assembly an easily achievable goal. As the capillary tubes can be several metres long, the measuring device can be placed at a safer distance from harsh industrial environments.

Typical applications are in media enriched with solids; crystallising, polymerising, HMh viscosity, corrosive, toxic and environmentally hazardous measured media; very low or high measured temperature media; hygienic requirements for the food and pharmaceutical sector; and batch changing without product residues in the measuring system.

Supplied By: Instrotech
Tel: +27 11 462 1920
Fax: +27 11 462 1958
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Further reading:

  • High performance pressure ­transmitter
    March 2017, Instrotech, Pressure Measurement & Control
    Kobold’s PAS pressure transmitter enables precise monitoring of absolute and gauge pressures. The PAS is a microprocessor-based, high performance transmitter, which has a flexible pressure calibration ...
  • Robust submersible pressure sensors
    March 2017, WIKA Instruments, Pressure Measurement & Control
    WIKA has extended its portfolio through the introduction of two high-performance submersible pressure sensors with a slimline design. As a result of the many options, these instruments offer an exceptionally ...
  • Compact magnetic sensor for machine construction
    March 2017, Instrotech, Sensors & Transducers
    SIKO has introduced its latest ultra-compact magnetic sensor for machine and plant construction including linear actuators, stop adjustment for saws, and even measurement of the tracking of solar plants. ...
  • Pressure transmitters for hazardous areas
    March 2017, Instrotech, Pressure Measurement & Control
    Keller has introduced a complete range of pressure transmitters for use in hazardous areas. These intrinsically-safe transmitters offer measurement ranges between 0,2 and 1000 bar, so they can be used ...
  • Relative humidity transmitters
    March 2017, Instrotech, Sensors & Transducers
    Michell Instruments is a provider of humidity and temperature field measurement solutions. The company has on offer a range of relative humidity transmitters for industrial applications. The HygroSmart ...
  • Flow measurement and regulation by mass
    February 2017, Instrotech, Mass Measurement
    Kobold has introduced its DMS digital flowmeters that, because they record the mass of gases, are unaffected by the pressure and temperature of this medium. The measuring devices work using a bypass capillary ...
  • Combined RH and temperature measurement
    February 2017, Instrotech, Temperature Measurement
    Many industrial processes involve high temperatures, often combined with harsh and corrosive environments, but these types of conditions are not normally the best for placing precision instrumentation, ...
  • Pressure transmitters for demanding applications
    February 2017, RET Automation Controls, Pressure Measurement & Control
    RET Automation has added more pressure transmitter versions to its range of fluid sensors. The compact PT series was developed to meet the demanding pressure measuring requirements in the machine building ...
  • Precision filter monitoring
    February 2017, Instrotech, Pressure Measurement & Control
    Kobold has on offer its type PMP differential pressure sensor, specifically designed for monitoring filters for air or non-corrosive/aggressive gases by measuring the pressure difference before and after ...
  • Robust programmable pressure sensor
    January 2017, Allpronix, Pressure Measurement & Control
    ACS Control Systems has introduced the new robust and programmable 2-wire pressure sensor Precont PU4SE suitable for monitoring relative pressure in gases, vapours, liquids and dusts. This equipment ...
  • Kobold’s new industrial temperature probes
    January 2017, Instrotech, Temperature Measurement
    Kobold has introduced its new MMA range of industrial temperature probes, or insertion resistance thermometers (with/without transmitter). The MMA is engineered using 316 stainless steel and incorporates ...
  • Temperature measurement within the plastics industry
    December 2016, Instrotech, Temperature Measurement
    The optris PI infrared camera monitors the temperature of production without disruption and without contacting any of the parts.

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