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Pyropress is a UK designer and manufacturer of flameproof (Ex d), safe (Ex ia) and industrial switches, transmitters, and explosion relief valves.

With over 70 years’ experience, Pyropress has a global reputation for high build quality, reliability, and product durability. Products are sold direct, or through a global network of partners.

Pyropress At a glance



Global Employees


Years Operating

Since 1951

Pyropress Key Facts

Managing Director: Stephen Burns

Address:  Bell Close, Plympton, Plymouth, Devon, PL7 4JH, United Kingdom

  • Design and manufacture of some of the most reliable and rugged switches and transmitters in the world for hazardous areas (with SIL2 certification).
  • Pyropress works at all levels of the supply chain providing essential components for critical operations.

Sectors served globally

OEMs / Installers


Biomass / Energy from waste

Utilities (Power and water)



Upstream, Midstream and Downstream


Hazardous area products

Switches (flameproof, intrinsically safe and industrial)

Transmitters (flameproof, intrinsically safe and industrial)

Relief Valves

Made in Britain, our products are used in a wide range of traditional and new exciting industries including biofuels, hydrogen and energy from waste. Our work in new industries has helped evolve our product offering and bring new technologies, materials and designs to market.

Stephen Burns, Managing Director of Pyropress

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