Pressure Measuring Systems  Manufacturers, Traders, Suppliers

Pressure sensors (also known as pressure cans, pressure load cells or pressure transmitters) differ, apart from the design and the output signal, mainly in the type of reference pressure for pressure measurement: here there are pressure sensors for relative pressure, absolute pressure and differential pressure transducers.
In a pressure sensor for relative pressure, the back of the sensor element is exposed to the air pressure surrounding us. In a typical setup, a small tube leads from the back of the sensor to the plug or through the connection cable. These pressure sensors have the advantage that fluctuations in air pressure are not reflected in a fluctuation of the output signal.
The pressure sensor for absolute pressure has a small chamber on the back of the sensor membrane which is completely evacuated, i.e. the chamber is 0 bar absolute. These pressure sensors show the current air pressure, which is typically between 950 and 1050 mbar, as long as no measuring pressure is present. Changes in air pressure (e.g. due to a rising high or low) therefore lead to a change in the measuring signal without changing the actual pressure value. A special type of absolute pressure sensors are barometers, which measure the ambient air pressure very precisely. A special form of the pressure sensor is the so called sealed gauge version. Here, the reference chamber is sealed tightly at approx. 1000 mbar. These pressure sensors are mainly used for measuring ranges >10 bar. Closing the reference chamber prevents, for example, aggressive gases from entering the reference chamber and causing corrosion.
Another special form of pressure sensors are so-called differential pressure sensors or pressure transducers. Here the back of the sensor membrane is mechanically constructed in such a way that it can be used as an independent pressure connection for pressure measurement. A pressure sensor (pressure cell or pressure load cell) in this version therefore indicates zero at the same pressure on the input and reference sides. Differential pressure sensors differ substantially in their mechanical construction. Here there are simple designs which, for example, only allow dry gases for the reference side or also high-quality pressure transmitters which allow an overload (even on one side) of more than 200 bar at a small nominal measuring range of 35 mbar.
Pressure transmitters often have a very robust mechanical design and have a 4...20 mA output signal which is common in process measurement technology.

Surface pressures or pressure distributions in the most diverse fields of application have been determined for years with the worldwide unique pressure measuring foil Prescale.
The electronic pressure measuring foil Tactilus, which can be placed as a thin mat between all bodies for measuring the surface pressure, opens up numerous possibilities which are also not covered by the pressure measuring foil Prescale. The dynamic data measured over time are transmitted via an amplifier to a notebook for evaluation. The intuitive program visualizes the result in real time via easy-to-understand graphics for area and pressure data. They can then be played back in the form of a film or frame by frame.

Pressure measuring foils Prescale: 0.05 to 300 MPaElectronic
pressure measuring foil Tactilus: 70 mbar to 11 bar

The Fuji pressure measuring foils can be used almost indefinitely and in all possible questions regarding surface pressure or pressure distribution. The films can be used in air as well as in water. The measurements usually have two different objectives. On the one hand, the surface pressure should be as uniform as possible and on the other hand the pressure should be measured.
Typical applications of the electronic pressure measuring foil can be found, for example, in medical technology for measurements under bandages or for measuring the roll pressure of paper rolls or steel coils. It is important that the sensor is completely loaded. Over the years, a portfolio of special solutions has been developed to meet the demand for measurement tasks.

With more than 35 years of experience and over 100 international patents, the family-owned and operated company Gneuss has made a name for itself as a supplier of innovative solutions for the plastics processing industry.
In addition to unique technologies, systems and components for plastics processing, Gneuss also offers complete turnkey solutions for the production of high quality sheet, fibres and pellets. Since its foundation in 1983, Gneuss has grown to become a worldwide technology leader for the extrusion of polymers and the reprocessing of all kinds of polymers.
Based in Bad Oeynhausen, Germany, Gneuss is committed to the expectations of products “made in Germany” while serving its customers worldwide. With its daughter company in the USA, offices in Brazil and China, a cooperation partner in Japan and together with representatives worldwide, Gneuss is present throughout the world. The best possible technical support, excellent service and spare parts availability is provided on all five continents. Support is available around the clock via a telephone service hotline. Pilot lines for trials and development work are available at several locations.
Our company philosophy is to work together with you, based on confidence and personal relationships. We are dedicated to providing competent advice and to supporting you with the best know-how and the most modern technology, and to always offer you an optimum filtration solution.

Trafag is a leading international supplier of high quality sensors and monitoring instruments for measuring pressure (i.e. pressure transmitters, pressure sensors and pressure switches, pressostats), temperature (thermostats and temperature transmitters) and SF6 gas density (SF6 gas density monitors and SF6 gas density sensors). A wide range of standardized, configurable products is available. Trafag is also specialized in developing tailored-made solutions for OEM-clients.
Trafag, a Swiss based company founded in 1942, is supported by a broad net of subsidiaries and representatives in over 40 countries all over the world. This allows Trafag to offer customers an individual and competent advisory service. High-performance development and production departments guarantee not just the timely delivery of our products with highest quality and precision, but also ensure that customer-specific requirements are met to absolute satisfaction.
"Trafag products: https://www.trafag.com/en/products
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Catalogues: https://www.trafag.com/en/supportservice/products-catalogue
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Trafag - Innovation, Reliability, Quality
Trafag is a leading international supplier of high quality sensors and monitoring instruments for measuring pressure (i.e. pressure transmitters, pressure sensors and pressure switches, pressostats), temperature (thermostats and temperature transmitters) and SF6 gas density (SF6 gas density monitors and SF6 gas density sensors). A wide range of standardized, configurable products is available. Trafag is also specialized in developing tailored-made solutions for OEM-clients.
Trafag, a Swiss based company founded in 1942, is supported by a broad net of subsidiaries and representatives in over 40 countries all over the world. This allows Trafag to offer customers an individual and competent advisory service. High-performance development and production departments guarantee not just the timely delivery of our products with highest quality and precision, but also ensure that customer-specific requirements are met to absolute satisfaction.
https://www.trafag.com
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Find your partner: https://www.trafag.com/en/trafag/trafag-worldwide "

KROHNE is a global manufacturer and provider of instrumentation, measurement solutions and services. Founded in 1921 and headquartered in Duisburg, Germany, we offer extensive application knowledge and local contacts for instrumentation projects in over 100 countries. KROHNE stands for innovation and high quality products as one of the market leaders in the process industry.
KROHNE specializes in process measurement – from field instrumentation to system solutions – and is a full-service provider for flow, level, pressure, temperature and process analytics products, accompanied by a broad range of services. We have proven experience working with many customers across most industries, including but not limited to chemical, oil & gas, food & beverage, water & wastewater, power generation and distribution, marine, as well as mechanical and plant engineering.
Today, KROHNE employs more than 4,000 people, operates 15 production facilities and owns 44 companies worldwide while remaining an independent, family-owned company. Our aim is to provide the right measurement solutions for our customers’ process measurement applications. We achieve this by manufacturing innovative, reliable, high-quality products and services, employing qualified and motivated people and maintaining long-term, reliable partnerships with our business partners.