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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Bush Sealing
Hello,
I have fitted thermostatic valves to all my radiators. Some, being old, needed a 3/4 OD x 1/2 ID brass bush between the radiator collar and the new valve. The bush does not tighten on the valve until the flats meet the body. Also the bush is not flanged and does not match the profile of the 'sticky out bit' on the radiator therefore there is only a sharp edge seal. I used what I thought was adequate PTFE tape to seal all threads but the bush weeps water through the inside diameter of the bush. Q. How many turns of PTFE tape should I use? Q. Is there a better method to seal threads like this like some stuff that swells when it gets wet? Many thanks Andy (Thanks to all posters re boilers by the way) |
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On 19 Sep 2004 20:21:34 GMT, AndyM wrote:
I have fitted thermostatic valves to all my radiators. Some, being old, needed a 3/4 OD x 1/2 ID brass bush between the radiator collar and the new valve. Didn't the new valves come with a matching tail to screw into the radiator? I fitted new valves to a very old radiator (plumbed in imperial pipe old) and 3/4" BSP is still 3/4" BSP. B-) I've yet to see two valves of different age or make that have the same design joint between tail and valve... -- Cheers Dave. pam is missing e-mail |
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