RFA 33, 34, 35, 36 replaces ARCU 1-or 2-pipes valves side coupled.
The valves can be regulated with a thermostatic head or M28x1,5 handwheel.
RFA 33, 34, 35, 36 has a concealed pre-setting function in the stuffing box.
Pre-setting of the 2-pipe system can be carried out using an FN2 key.
The valve is connected to the pipe system using a M22x1,5 or int 3/8” connection.
The valve has an M34x1,5 connection to the radiator.
The distribution of the flow (1-pipe) between radiator and by-pass is done with and allen key.
Set the number of turns specified i the table.
The valve return is switched off with a spindle under the cover, and the inlet is swtiched off
using a thermostatic head or manual handwheel.
The by-pass does not close when you close the valve with a thermostatic head.
Max differential pressure/closing pressure
Recommended differential pressure
Brass, Stainless steel
|4044801||RFA 33||1-pipe side M22x1,5|
|4044802||RFA 34||2-pipe side M22x1,5|
|4044701||RFA 35||1-pipe side int 3/8″|
|4044702||RFA 36||2-pipe side int 3/8″|