In article .com,
Crewood wrote:
The FAQ talks of lock shield valves, can someone please explain in the
lowest terms. There are two valves on a radiator, are both LSVs or how
can I identify which is the LSV. To get the radiators to balance do I
close off one of the valves more the the other valve on the same
radiator or equal amounts?

The valves themselves are identical. One should have a cover so it can't
be fiddled with, so this is designated the LSD. Normally on the flow, so
check which pipe heats up first from cold.

The other becomes the service valve with an adjustable knob - usually
left full on, unless it's shut off completely.

--
*'Progress' and 'Change' are not synonyms.

Dave Plowman London SW
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