Area of use

The FV valve is used togehter with a thermostat or manul wheel to regulate the temperature in a room togehter with radiators, convectors, etc.

FV valves can be used with a self-acting thermostat or electronic thermostat via an actuator.

Description

The FV valve series has an exact pre-setting function, placed inside the stuffing box. Pre-seting 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 FV5 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. The FV valve series can be ordered in dezincification resistance brass. FVR10, FVV10, FVAV10, FVR15, FVV15 and FVAV15 are approved under EN215 in combination with MTW, MTWZ and DTW.

Technical data

Pressure class
PN 10
Max closing pressure
250 kPa
Recommended pressuredrop
3-10 kPa
Kv value (pre-set) with Thermostat/no Thermostat
DN 10-15 0,01-0,7 / 0,01-1,2
DN 20 0,01-0,9 / 0,01-1,2
Kvs-value (max capacitet)
DN 10-20 0,01 – 1,2
Max temperature
100°C
Min temperature
5°C
Material
Brass
Gaskets EPDM

Dimensions

Valve Dim A B C Weight/g
FVR 10 51 29 33 150
FVR 15 58 32 33 180
FVR 20 68 35 30 275
FVV 10 54 21 23 150
FVV 15 57 24 26 180
FVV 20 63 28 31 275
FVAV 10 21 22 64 150
FVAV 15 24 26 70 180
FVAV 20 28 31 77 275
F22/16 10 51 29 33 150

Preset

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.

Pre-setting FV5
• Dismantle the stuffing box with the push rod (use the top of pre-setting key FN2).
• Place the pre-setting key with the bordered end down in the pre-setting sleeve and screw it carefully to the bottom (clockwise).
• Remove the pre-setting key and mount the presetting tool (FV5) over the insert splines and replace the pre-setting key through the tool.
• Reset the scale to the index marker.
• Screw up the pre-setting sleeve so that the desired kv value coincides with the index marker.
• Assemble the stuffing box push rod.

Order designations

RSK no. Art.no. Name Description Dim. Conn.
480 60 73 4042701 FVR 10 Valve straight 10 3/8″
480 60 75 4043001 FVR 15 Valve straight 15 1/2″
480 60 76 4043301 FVR 20 Valve straight 20 3/4″
480 60 77 4042801 FVV 10 Valve angle 10 3/8″
480 60 78 4043101 FVV 15 Valve angle 15 1/2″
480 60 79 4043401 FVV 20 Valve angle 20 3/4″
480 60 80 4042901 FVAV 10 Valve revert angle 10 3/8″
480 60 81 4043201 FVAV 15 Valve revert angle 15 1/2″
480 60 82 4043501 FVAV 20 Valve revert angle 20 3/4″
480 52 78 4042706 FVR 10 AZF Valve straight AZF 10 3/8″
480 52 79 4042804 FVV 10 AZF Valve angle AZF 10 3/8″
480 52 80 4042904 FVAV 10 AZF Valve revert angle AZF 10 3/8″
480 65 33 4280801 F22/16 Loop valve for 1-pipe 10 3/8″