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Atos ex-proof valvesWith or without integral position or pressure transducer – ATEX or IECIx certification

Atos DHA ex-proof valves



  • Oil & Gas
  • Energy
  • Mining sector
  • Marine auxiliary power
  • Petrochemical


Official distributors and Atos Service Center
Official distributors and Atos Service Center
12 months warranty
12 months warranty
Certificazioni ATEX, IECEx, EAC, UL, MA, PESO, CCC e M (settore minerario)
ATEX, IECEx, EAC, UL, MA, PESO, CCC, and M (mining sector) certifications


Ex-proof hydraulic valves are three or four-way hydraulic valves, with two or three positions, designed to operate in systems that require specific certifications or in cases of installations in critical environments due to extreme temperatures.


  • On-off valves with direct and pilot operation, available in sizes NG 06:32 with SIL2/SIL3 safety level
  • Proportional valves for open-loop flow and pressure control
  • Proportional valves for closed-loop flow and pressure control
  • Closed-loop servoproportional valves
  • Intrinsically safe valves


  • Certifications ATEX, IECEx, EAC: Group I (gas and mining); Group II (gas and dust)
  • US and Canadian Standard: UL429, UL1203, and CSA 22.2
  • PESO (Petroleum and Explosives Safety Organization): Government of India certification
  • MA: Chinese mining certification
  • SIL2/SIL3: Compliance with IEC61508
  • CCC for the Chinese market
  • M: For the mining sector

For intrinsically safe valves: ATEX or IECEx certification Group I (gas and mining); Group II (gas and dust)

Alternative to:

  • Rexroth
  • Duplomatic

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