Nuclear

40 Years of Expertise

Crouzet has been involved in the nuclear industry for 40 years, and offers a range of special limit switches designed to detect positions and switch high or low currents in the most severe conditions.

International Qualification Standards

Crouzet’s switches work in various applications inside and outside the reactor building. These safety critical components, are qualified according to RCCE, IEEE/KBE, and other international qualification standard for AG, K1, K2, K3 AD, K3 ATEX, K3 levels, ATEX and IECEx, as well as by EDF, the leading French electricity operator.

 

 

Detection for nuclear environments

nuclear environment

 

Valves and Actuators

Detection for nuclear environments

For explosive atmospheres, nuclear environments and harsh environments, Crouzet offers 2 valve and actuator product ranges:

  • Snap-action microswitches
  • Limit switches

Detection for explosive atmospheres

Crouzet’ products comply with the standards and certifications established by national and international bodies. The family of 8399 Ex limit switches have been developed and ATEX/IECEx certified for use in potentially explosive atmospheres.

Detection for industrial

Regardless of the type of operation used, some valves are equipped with a positioning unit that is used to display the open/closed state of the valve and send this information electrically to its actuator control, and also to perform supervisory functions. It is therefore necessary to have very precise detection. The switching directly effects the kinematics of the valve, and thus the flow of the fluid.

Our limit switches are comprised of a hermetically sealed microswitch (83151) which combines a snap-action switching system with a high degree of resistance to shock and vibration.

LIMIT SWITCHES

SP4863 Limit Switches

SP4863 Limit switches

  • Operates up to a pressure of 1 bar
  • Mechanically very robust
  • Flexible roller lever fixed to the body
  • High seismic resistance
  • Operating temperature -55°C to +105°C

SP4522 Limit Switches

SP4522 Limit switches

  • Single pole or 2-pole circuit
  • Lever adjustable over 360°
  • Special cables
  • Operates within pressures of between 1 and 6 bar
  • CW/CCW actuation

SP4816 & SP4813 Limit Switches

SP4816 & SP4813 Limit switches

  • Operates up to a pressure of 6 bar
  • Mechanically very robust with stainless steel body
  • Plunger or roller lever that is spring returned to rest position, providing excellent resistance to vibration

SP3991 Limit Switches

SP3991 limit switches

  • Operates up to a pressure of 6 bar
  • Mechanically very robust with stainless steel body
  • Plunger or roller lever that is spring returned to rest position, providing excellent resistance to vibration
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