The FVX valve series is used to regulate the flow for radiators or cooling system.
FVX valves can be used with a self-acting thermostat or electronic thermostat via an actuator.
The FVX valve series has an exact pre-setting function, placed inside the stuffing box. Pre-setting can be carried out using the pre-setting key FN2 by opening a number of turns from shut position as shown on the pressure drop diagram.
The FV8 pre-setting tool simplifies pre-setting. The valve is supplied with a protective cap in grey, which denotes pre-setting.The protective cap may during installation be used as shut-off, and also during pre-setting to set nominal opening with thermostatic head mounted. Turn the cap to the bottom and open 3/4 turns.
Max shutting pressure
Kv value (pre-set) with Thermostat/no Thermostat
DN 15 0,05-1,5 / 0,05-2,3
DN 20 0,05-1,5 / 0,05-3,6
Kvs-value (max capacitet)
DN 15 2,3
DN 20 3,6
Pre-setting FN2 key
The valves are equipped with a insert with concealed pre-setting. Dismantle the stuffing box with the push rod (use the top of pre-setting key FN2). Place the pre-seting key with the bordered end down in the pre-setting sleeve and screw it carefully to the bottom (clockwise).
Screw up the pre-setting sleeve to the desired kv value according to the diagram. Assemble the stuffing box push rod.
|480 63 33||4047401||FVXR 15||Valve straight||15||1/2″|
|480 63 34||4047501||FVXR 20||Valve straight||20||3/4″|
|480 63 39||9000399||FVXR 15||Valve straight incl.connection||15||1/2″|
|480 63 40||9000401||FVXR 20||Ventil straight incl.connection||20||3/4″|