Press Releases

Intrinsically safe valves

Intrinsically safe electrohydraulics is currently used in FPSO vessels (Floating Production, Storage and Offloading), LNG carriers, mining and in every typical applications in intrinsic safety areas.

“Intrinsically safe” specification is based on the principle of limiting the energy of electric circuits in environments with hazardous atmosphere. The solenoids must be powered through specific “safety barriers” to limit the max input current and thus avoid that electrical or thermal sources could cause the ignition of the hazardous atmospheric mixture, also in a break-down situation.

Atos intrinsically safe valves are certified according to ATEX 94/9/CE and IECEx, protection mode:

  • ​​​​​​​Ex II 1 G Ex ia IIC T6 or IIA T5 for surface plants with gas or vapours environment, cat. 1, zone 0,1 or 2
  • Ex I M2 Ex ia, solenoid group I for surface, tunnel and mining plants

Intrinsically safe valves are also SIL compliance to IEC 61508, TüV certified.

They comply with the highest safety standards within a comprehensive range including pressure, flow and directional control valves, also in leak free cartridge execution, plus the electrical safety barriers specifically designed to grant valves’ best performances.

Source: RL52