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Fixing Leaking Ferro Radiator Valve: Disassemble, Replace O-Rings / Entire Valve

JanekSokół 54738 6
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  • #1 15133127
    JanekSokół
    Level 6  
    My Ferro radiator valve is leaking.
    If it is unscrewed and I move it, I press it, water droplets fall out.
    Probably some rubber O-rings inside have ceased to fulfill their function, I suspect.

    Does it somehow disassemble, replace the middle element?
    Or maybe the entire valve to be replaced?

    Fixing Leaking Ferro Radiator Valve: Disassemble, Replace O-Rings / Entire Valve

    Added after 29 [minutes]:

    I've made it to this point, what next?




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  • Helpful post
    #2 15133280
    Nemonek
    Level 27  
    You are in a good position for the valve to have a gland. Try to tighten the nut at the top (the one from which the water is leaking). If that doesn't work, you have to unscrew it completely, there should be a hold-down ring underneath and a gasket that needs to be replaced (a little water will flow, but not much, so secure the floor). Ferro valve cross-section:
    Fixing Leaking Ferro Radiator Valve: Disassemble, Replace O-Rings / Entire Valve
    As a last resort, you can put silicone under this cap and screw it on
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  • #3 15133319
    JanekSokół
    Level 6  
    :D I tightened the nut at the top and it is not leaking yet. There was a plastic gasket underneath it.
    When I was regulating the water supply (radiator temperature), this nut unscrewed by the way.
    I'm just not sure if I also turned off the water supply to this radiator completely ...
    It will turn out tomorrow, because today the stove is off.
  • Helpful post
    #4 15136584
    Zbigniew Rusek
    Level 38  
    These valves are not used to adjust the heater frequently as the gland packing rubs easily. In principle, they should be used sporadically, e.g. to turn off a radiator.
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  • #5 15136607
    JanekSokół
    Level 6  
    Right, I regulated a lot and the result started to leak.
    Now I turned the flow to the max, I also tightened this cap to the max (by hand, quite tightly) and it does not leak.

    By the way, I ask - are there any rules for changing this valve to a thermal one? Just a replacement and it will work?
  • Helpful post
    #6 15136853
    Nemonek
    Level 27  
    You probably mean a valve with a thermostatic head, just a replacement and it's supposed to work.
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  • #7 15594389
    JanekSokół
    Level 6  
    OK thank you.

Topic summary

The discussion revolves around fixing a leaking Ferro radiator valve, suspected to be caused by worn rubber O-rings. Initial advice suggests tightening the nut at the top of the valve, which may stop the leak. If that fails, disassembly is recommended to replace the gasket and hold-down ring. The user successfully tightened the nut, temporarily stopping the leak, and inquired about replacing the valve with a thermostatic one, which was confirmed to be a straightforward swap.
Summary generated by the language model.
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