Hi many years back I used to use wd40 on the pins to oil them up, what is recommended now?
Lubricating trv pin
- Thread starter RobTi
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Most of my TRV heads exercise the pins once a week, so no longer needs WD40, but only the programmable type do that.
I often see posts re how "stuck" TRV pins can be unstuck by removing the actuator and pushing the pin in with something like the handle of a reversed hammer, some say they can stick after remaining in one position for a prolonged period like the summer. I've used TRVs (the simple real ones) for years and have never had a single stuck pin, mine last ~ 6 to 8 years and fail either by the rubber seat failing , in which case the TRV will pass at full/partial flow even if shut, or the internal spring fails, in which case they generally fail passing either partially/fully. I never exercise them between seasons but certainly not a bad practice to fully shut/open a few times and then return to original settings. WD40 is a good all rounder so probably used mostly.
I use a tiny amount of silicone spray on them.
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