FVI – insert for integrated valves

Area of use

The FVI insert is used to preset an regulate radiators with integrated manifolds.


The FVI insert is variable and it is possible to precisely set the Kv value. There is a clear scale on the insert and the FVI insert can be set with precision using tools. The FVI insert has a setting cover and must be preset with the supplied tools.

The insert can be used in both 1-and 2-pipe systems.

FVI Arkana fits the following radiators
– Epecon Modul Compact Integra (flat)
– Epecon Pre (flat)
– Epecon Flex (flat)
– Epecon Lisa Integra
– Epecon Lisa Panel Integra
– Epecon Hygien Integra (flat)
– Lenhova Radiators, the LP range with integrated manifolds
– Watt Heating WKI convector
– Curant Trading KV Integra
– Curant Trading PV Flat Integra

FVI Kripta fits the following radiators
– Watt Heating WRI
– Watt Heating WRPI

Technical data

Pressure class
PN 10
Max temperature
Min temperature
Kv value (preset value) with thermostat/without thermostat
Brass, EPDM, Noryl

Order designations

RSK number Article number Designation Description
480 53 38 4112101 FVI Arkana M28x1,5
480 53 39 4112102 FVI Kripta M28x1,5
480 68 21 4833101 FVI key Pre-setting key