AFPB(-F) 2 /VFQ22(1)

The controller is a self-acting differential pressure controller with flow limitation primarily for use in district heating systems. The controller closes on rising differential pressure or when set max. flow is exceeded. The controller has a control valve with adjustable flow restrictor, an actuator with one control diaphragm and spring for differential pressure setting. Further on two valve versions are available: ∙ VFQ 22 with metallic sealing cone ∙ VFQ 221 with soft sealing cone Together with Danfoss intelligent electrical actuator AMEi 6 intelligent optimization functions are available: ∙ iSET-intelligent substation efficiency optimization ∙ iNET-intelligent network balancing