The explosion-proof pressure relief proportional valves are in compliance with ATEX 94/9/EC standards and are suitable for the use in potentially explosive atmospheres, that fall within the ATEX II 2GD either for gas or for dust classification and I M2, for mines.

The statement of conformity to the up mentioned standards is always supplied with the valve.

Upon request, PRE(D)*Kvalves can be supplied with a finishing surface treatment (zinc-nickel) suitable to ensure a salt spray resistance up to 600 h (test operated according to UNI EN ISO 9227 standards and test evaluation operated according to UNI EN ISO 10289 standards).

Pressure can be modulated continuously in proportion to the current supplied to the solenoid.

These valves can be controlled directly by a current control supply unit or by means of the relevant electronic control units to exploit valve performance to the full.