Melt pressure sensor

We sense innovation.

Our mission is also our passion and has been for almost 80 years. We offer solutions for our customers that are innovative, competent and above all tailored to the needs of each individual. Why? Because we are close to our customers, in close contact with each other and work in a solution-oriented manner. We are forward-looking, further develop our products for you so that you not only are up-to-date, but also a decisive step ahead of the game with us.

Complete overview of all configurable sensor groups

Product overview of melt pressure sensor technology

Gräff melt pressure transducers are particularly characterized by increased service life, high material quality, precise measurement behavior and food-grade transmission medium. Our sensors are completely made of stainless steel. Due to the use of a special and innovative membrane, the known defects of membrane rupture during melt shrinkage are a thing of the past.

A special coating protects the membrane against sticky and abrasive materials. The result of selected materials, a special manufacturing process and the high-precision electronic unit ensure a stable measurement process without the known disturbance variable of a temperature drift, for example with the filling medium NaK.

By eliminating environmentally harmful materials, our sensors can also be used for food and pharmaceutical applications (FDA compliant).

All Gräff melt pressure sensors are exclusively manufactured in Germany. Thus, we grant very short delivery times of max. 2 to 3 weeks. All Gräff melt pressure transducers are already available in different shaft lengths and in different capillary lengths by default.

Melt pressure sensor

  • Output signal mV/V, mA, V

  • Pressure ranges up to 2000bar

  • Accuracy 0.15%/0.25%/0.50%

  • Temperature compensated

  • Mercury free

  • Silicone oil free

  • NaK-free

  • Sensor completely made of stainless steel

  • Standard membrane highly elastic

  • Standard RT/200°C calibration

  • 6-times characteristic curve calibration

  • Made in Germany



Output signal mV/V and temperature sensor



Output signal mA / V and Temperature sensor



Performance Level C Acc. to DIN EN 1114-1:2011 EN ISO 13849-1

We solve countless and highly complex tasks every day. Maybe yours soon?

Marion Hupperich

Managing Director Gräff GmbH

We solve countless and highly complex tasks every day. Maybe yours soon?

Marion Hupperich

Managing Director Gräff GmbH

Thermocouples and resistance thermometers

Solutions for all industries.

We offer more than 5,000 different thermocouples and resistance thermometers. With more than 20,000 possible variations. And yet, we are continuously developing new, tailored solutions – for every challenge, for every industry.

  • Plastics industry

  • Food industry

  • Raw material refining industry

  • Metalworking

  • Furnace construction

  • Waste management

  • Automotive industry

  • Plant and mechanical engineering

  • Construction industry

  • Glass industry
  • Textile industry

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