Refurbishment Valve NAF/ AHA S69
Refurbishment Valve NAF/ AHA S69
Refurbishment TRV

Refurbishment Valve NAF/ AHA S69

RFA 03/04/05/06 replaces NAF / AHA S69 1 or 2 pipe valves bottom coupled. The valves can be controlled with a thermostat or handwheel M28x1.5.

Description
RFA 03/04/05/06 has hidden preset under the packing box. Adjustment of 2-pipe system is done with key FN2. Distribution of the flow (1-pipe) between radiator and by-pass is made with FN2. Screw the number of turns specified in table radiator flow 1-pipe. The valve has a M22x1.5 or M18x1.5 connection to the pipe system. The connection to the radiator is M26x1.5. The return of the valve is closed with a spindle under the lid and inlet with thermostat or handwheel. When switched off, the bypass is not closed.

Properties
Max operating temperature 100
Connection dimension M28x1,5
Pressure rating PN10
Material Brass