Gefran Launches TPLA Sensors for High-Precision Low-Pressure Measurement

Gefran has released the TPLA series of pressure sensors designed for accurate measurement of low pressures in industrial systems. These sensors use piezoresistive technology on a silicon measuring cell to deliver stable, repeatable output suited to applications where fine control of pressure is essential, including automated packaging, industrial printers, dosing operations and extrusion blow molding. The TPLA series supports both relative and absolute pressure measurement with analog voltage or current outputs to integrate into industrial control systems.

New Low-Pressure Sensing for Diverse Industrial Systems
The TPLA series represents a focused enhancement to pressure measurement within the digital supply chain of industrial automation. High sensitivity and stability in low pressure ranges address the precise monitoring needs of systems where subtle pressure deviations influence quality and throughput. Drawing on silicon piezoresistive sensing, these sensors are engineered to maintain accuracy and responsiveness even at the lowest measurable pressure levels typical in fluid and gas control loops.

TPLA sensors cover a range from 0…0.05 bar up to 0…60 bar, making them applicable to a variety of processes that operate near atmospheric pressure or require fine resolution within compressed air, vacuum and control circuits. The provision of both voltage and current analog outputs aligns with conventional industrial instrumentation interfaces, facilitating integration with programmable logic controllers (PLCs) and distributed control systems (DCS).

Design and Construction Supporting Field Deployment
To ensure environmental resilience and compatibility across industrial contexts, the TPLA series employs 316L stainless steel for process connections and 304 stainless for sensor housings, combining corrosion resistance with mechanical robustness. Silicone oil filling fluid and FKM O-rings are used to support long-term stability and durability in fluid contact areas, features that are critical in applications such as food packaging where frequent cleaning and wash-down may occur.

By designing the TPLA platform around recognized piezoresistive measurement principles and analog output interfaces, Gefran positions the series as an enabling component in automotive data ecosystems and other manufacturing environments where accurate pressure telemetry contributes to operational efficiency, product consistency and control system performance.

Application Context and Industrial Relevance
Pressure sensors in the TPLA class support tasks such as monitoring air feed in pneumatic actuators, regulating pressure in low-pressure fluid transport, or controlling vacuum levels in packaging systems. Their ability to detect and quantify low pressures with precision helps reduce waste and improve process predictability. The series’ compatibility with standard industrial control outputs means that existing automation architectures can leverage enhanced data fidelity without significant redesign.

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