ABB has expanded its measurement products range with the addition of pressure and temperature switches, enabling safe and reliable control of pressure and temperature in a range of industrial applications, including chemical, oil, gas and power.

ABB’s BETA pressure and temperature switches are characterised by their ability to offer safe and reliable performance in extreme conditions. Fully certified to leading international standards, the range includes pressure, differential pressure, vacuum and temperature switches, making them ideal for measuring fluids and gases in a wide variety of applications.

The switches incorporate a precisely engineered, self-aligning, piston sensor which provides precise operation. The limited travel in the piston, and its direct contact with the microswitch, allows accurate pressure transmission and full protection against the highest over range pressure.

The piston sensor is isolated from the process fluid by a diaphragm and static O-Ring seal and retained by a process connection port. These are the only process wetted parts and are available in an extensive range of materials.

The spring-loaded piston features excellent resistance to shock and vibration, while the flexible, strong mounting bracket avoids pipe strains and consequent movement. BETA switches are ideal for safety installations and are certified for use in SIL2 applications.

The BETA temperature switch is a pressure switch enclosure with a built-in sealed two-phase temperature sensor for use in gas and fluid applications. As the temperature of the process increases, the vapour pressure of the liquid also increases. If the vapour pressure exceeds the setpoint of the pressure switch, then the switching element will be actuated.

Manufactured from 316 stainless steel, the temperature switch sensors can be fitted into standard thermowells of up to 10mm bore, or can be direct or capillary mounted.

BETA temperature switches are available in both weathertight and ATEX approved explosion proof models, enabling them to be used in arduous and hazardous locations.

All switches in the BETA range are available in a wide range of materials, avoiding the need for expensive chemical seals.

Certifications for the ABB BETA range include EXIDA (SIL2 Certification), CSA, FM, ATEX and IECEx. 

For more information including full safety certification and specifications, call 0870 600 6122 or email This email address is being protected from spambots. You need JavaScript enabled to view it. ref. ‘BETA switches’.

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