Difference between revisions of "Fitting TRVs to Microbore"
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− | This article is about fitting Thermostatic Radiator Valves to microbore pipe used in Central Heating systems. It is equally applicable to fitting manual valves e.g. a lockshield valve when reworking or extending an existing microbore system. | + | This article is about fitting [[Thermostatic Radiator Valves]] to [[microbore]] pipe used in [[Central Heating]] systems. It is equally applicable to fitting manual valves e.g. a lockshield valve when reworking or extending an existing microbore system. |
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Revision as of 01:08, 17 February 2007
This article is about fitting Thermostatic Radiator Valves to microbore pipe used in Central Heating systems. It is equally applicable to fitting manual valves e.g. a lockshield valve when reworking or extending an existing microbore system.
Insert a fitting reducer into the valve so that the olive sits in the middle of the reducer and tighten so that the olive grips the reducer. |
Line the TRV body up with the existing valve body and mark the microbore for cutting to fit into the reducer. |
Cut the microbore where marked: in this instance a junior hacksaw is used as there isn't space to use a wheel-type cutter |
Unscrew the old valve body and tail from the radiator (this saves undoing the valve and using an L-shaped hex key to undo the tail) |
Clean out the tapping in the radiator. A wet & dry vac can be used to suck out debris or the radiator can be taken off and flushed out. |
Prepare the microbore pipe tail for soldering checking that it is clean all the way round. | Solder to the fitting reducer (making sure the valve nut is over the pipe first!). | Check that solder can bee seen all around the joint. |
Use preferred thread-sealing method and fit valve tail to radiator. |
Tighten valve nuts (supporting valve against twisting). | Fit thermostatic head. |