VUN

How energy efficiency is improved

Reliable actuation in efficient control systems

Features

• Regulating valve free of silicone grease with male thread (DIN EN ISO 228-1) for cold or hot water in closed and open circuits
• In combination with valve actuators AVM 105(S), 115(S), 321(S) and AVF 124, 125S as a control unit
• Equal-percentage (F300) / linear (F200) characteristic, can be set with SUT valve actuators (SAUTER Universal Technology)
• The valve is closed when the spindle is moved out
• Closing procedure against the pressure or with the pressure
• Stainless-steel spindle
• Valve body and valve seat in dezincification-resistant (DZR) cast brass
• Plug with glass-fibre-reinforced PTFE sealing ring made of dezincification-resistant (DZR) cast brass
• Stuffing box with wiper ring made of dezincification-resistant (DZR) cast brass and double O-ring seal made of EPDM