Recent content by Petetheboat

Think i'll take one of them apart and see if i can see why they spec as they do. TVM for help so far. Bedtime now!

Also says " It may be plumbed in at any angle but the flow must go into Port AB" Which kind of precludes its use as a 2-entry valve.

Tx again Dan - but Honeywell installation instructions specifically say: "The valve MUST NOT be fitted on the return pipework under any circumstances. Flow from the boiler must be connected to port AB, the radiator circuit to port A and the hot water cylinder circuit port B" They don't...

Tx Dan but I think they are a tad heavy duty. A bit more info - I am trying to set up a selector valve arrangement to allow DHW heating from EITHER the engine OR a diesel-fired boiler. Both systems work, but at the moment one is disconnected. Each system has a vane circulation pump and...

don't think that will work. or at least, not reliably. the valve seats in these things are arranged to seal with pressure only on the input side. reversing it would cause leakage round the seats.

Does anyone know of a 3 port diverter valve which will take two INPUTS and divert either one of them to the (single) output? All CH valves I can find take ONE input and divert it to one of two outputs. I could probably do it with two x 2 port valves wired so that only one or the other...