Broken plastic bolt inside thermostatic radiator valve

[cstrangward]

Hi everyone,

I need some advice on a DIY error. I drained and removed a radiator a couple of weeks ago but while draining the radiator I tightened the internal white plastic bolt inside the thermostatic valve when I shouldn't have and sheared the top of it off (see attached photo). I tightened this plastic bolt purely out of error thinking this would close the valve as it has been a while since I drained a radiator. The valve is not leaking and the radiator has since been reattached and has been in use for a couple of weeks. What I would like to know is do I need to replace this valve as I'd rather avoid the expense unless I have to.

 

[Riley]

If you've actually sheered the small metal pin off then you will have no control over the radiators heat nor will you be able to turn it off. Replacement is the only thing that will sort it unfortunately.

 

[Chriswareham]

is the valve as it is in the photo and doses the pin go up and down with pressure on it if so it seems to be fine i dont no what part you have broken

 

[Chriswareham]

if you have broken the sten in side the head yes you will need to get a new head to fit that valve or replace the hole valve

 

[cstrangward]

Hi Everyone

Thanks for your feedback. The metal pin inside the valve is fine. It moves up and down and the radiator can be turned off and on. Its the white plastic housing around the pin, it was bolt shaped on top but I have sheared off the top of the white plastic bit by over-tightening it. The valve is fully reassembled and has not leaked for the 2 weeks it has been reassembled for. I would just like to know if this is likely to cause any long term problems

Thanks

 

[ShaunCorbs]

cant say for certain but it could

would get it changed sooner rather than later, should be an easy swap for a local heating eng/ plumber

 

[student plumber]

Pictures of the broken bit as I cannot picture it.
If it's not a case of putting a new top on it then replace it.

 

[Welder]

As advised, I'd change it.
If you choose a Danfoss replacement when it eventually leaks from the pin, as every valve does eventually, it can be changed WITHOUT draining down. Simples...

 

[stani]

Did it have something like this on top, which you have broken?
https://www.googleadservices.com/pa...ahUKEwjhg4LGyKTTAhXMCcAKHfwZALsQwg8IHg&adurl=

 

[stani]

Or like this
http://www.NoLinkingToThis/p/drayton-decorator-radiator-valve-cap-0735123-5-pack/5649r

 

[Best]

Get it replaced as soon as you can.
You have clearly broke part of the gland leaving the final gland O ring seal on the pin exposed.

 

[Best]

Did it have something like this on top, which you have broken?
https://www.googleadservices.com/pa...ahUKEwjhg4LGyKTTAhXMCcAKHfwZALsQwg8IHg&adurl=

No Stani, - I am fairly sure what the OP meant is they broke the gland nut, which is plastic on that particular TRV.
You can see the wee O ring exposed

 

[stani]

Yea can see it now, on iPhone it's not good, iPad is better picture. Thought the way it was described it was the dust cap.

How do you say thanks with these little whatever they are things

 

[Best]

Yea can see it now, on iPhone it's not good, iPad is better picture. Thought the way it was described it was the dust cap.

How do you say thanks with these little whatever they are things

If you click on each wee symbol to see what it does and then you can undo it (undo to the right).
The thumbs up is a Like