Refurbishment Valve NAF S65

RFA 59 replaces NAF S65 1 or 2 pipe valves bottom connected. The valves can be controlled with a thermostat or handwheel M28x1.5. RFA 59 has a concealed preset under the sealing box. Adjustment of 2-pipe system is done with key FN2. The valve has a M22x1.5 connection to the pipe system. The connection to the radiator is M22x1.5. RFA 59 is adjustable from 1- to 2-pipe systems (delivered set as 1-pipe). With the by-pass valve you can set the distribution of the flow to radiator.