Ex-proof proportional relief valves direct or pilot operated, without a transducer for open-loop pressure control. Valves obtain an ex-proof proportional solenoid, certified for safe operation in hazardous environments, and a potentially explosive atmosphere. 

• Multicertification ATEX, IECEx, EAC, and PESO for gas group II 2G and dust category II 2D
• Multicertification ATEX and IECEx for gas group I M2 (mining)
• cULus North American certification for gas group C&D 

Ex-proof proportional relief valves direct or pilot operated, without a transducer for open-loop pressure control. Valves obtain an ex-proof onboard digital driver and proportional solenoid, certified for safe operation in hazardous environments with a potentially explosive atmosphere. 

• Multicertification ATEX and IECEx for gas group II 2G and dust category II 2D

The flameproof enclosure of an onboard digital driver and solenoid prevents the propagation of accidental internal sparks or fire to the external environment. Driver and solenoid designed to limit the surface's temperature within the classified limits.

Ex-proof high-performance digital proportional relief valves direct or pilot operated wit a pressure transducer for pressure control in a closed-loop. Valves obtain an ex-proof onboard digital driver, pressure transducer, and a proportional solenoid, certified for safe operation in hazardous environments with a potentially explosive atmosphere.

• Multicertification ATEX and IECEx for gas group II 2G and dust category II 2D

The flameproof enclosure of an onboard digital driver, solenoid and transducer, prevents the propagation of accidental sparks or fire to the external environment. Driver and solenoid designed to limit the surface's temperature within the classified limits.

LIMZA-A 2-way ex-proof proportional pressure cartridges, without a transducer, performing as pressure compensators, relief, or reducing functions. Cartridges equipped with ex-proof proportional solenoids, certified for safe operations in hazardous environments with a potentially explosive atmosphere.

• Multicertification ATEX, IECEx, EAC, and PESO for gas group II 2G and dust category II 2D
• Multicertification ATEX and IECEx for gas group I M2 (mining)
• cULus North American certification for gas group C&D 

The flameproof enclosure of the solenoid prevents the propagation of accidental sparks or fire to the external environment. The solenoid designed to limit the surface's temperature within the classified limits.

2-way ex-proof proportional pressure cartridges, without a transducer, performing as pressure compensators, relief, or reducing functions. Cartridges equipped with ex-proof onboard digital driver and proportional solenoids, certified for safe operations in hazardous environments with a potentially explosive atmosphere.

• Multicertification ATEX and IECEx for gas group II 2G and dust category II 2D

The flameproof enclosure of the onboard driver and solenoid prevents the propagation of accidental sparks or fire to the external environment. The driver's and solenoid's design limits the surface's temperature within the classified limits.