Dual adjustment valve (DR valve)

Regulation valve with variable Kv




The ERFI automatic control valves allow you to adjust the flow factor with an complementary adjustement dissociated from the regulating control . It is possible to vary this adjustment according to the process without modifying the opening stroke of the valve .

The valves can be equipped with an electric or pneumatic servo-motor with an option of manual breakdown service. 

These valves allow you to regulate air flows or to control air/gas mixture .

Sizes (naked valve without servomotor)

DN 50 65 80 100 125
A 220 240 240 240 240
B 252 312 340 360 390