Drayton DTB 2200 Automatic Bypass Valve
DTB automatic by-pass valves are
designed to maintain a minimum flow
rate in heating systems fitted with thermostatic
radiator valves. When all the TRVs
are open the by-pass valve remains closed,
allowing the full boiler output to circulate
around the heating system. As TRVs sense
that selected room temperatures are
reached and start to close, the by-pass
valve starts to open, maintaining optimum
flow through the boiler and so eliminating
possible damage to the boiler and pump.
Installation of the DTB by-pass valve will
minimise noise often experienced when
flow through the boiler decreases.
Maintains optimum flow
Automatic operation
Set and forget
Ensures quiet operation
High quality
Reliable
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