Drayton two port 22mm valve body to replace Smartfit units?

[Rapidonset]

I’m replacing my Honeywell Smartfit system with a Drayton twin zone 2-channel heating pack.

Does anyone know if the Drayton two port 22mm valves will go in the same pipe spacing as the Honeywell units?

I’ve tried in vain to get the physical dimension of the Drayton vales without success unless these ports conform to a standard size.

 

[Deleted member 267285]

Have you tried using a tape measure?

 

[Rapidonset]

What are the measuring points? The end of the 22mm pipe, the theads, nut, olive?

 

[Deleted member 267285]

Measure from the end of one of the nuts to the end of the other one. Assemble the Drayton with nuts on and measure the same distance, and that should give a rough guide.

 

[Rodders53]

Have you asked the makers? https://www.draytoncontrols.co.uk/contact-us

 

[lostinthelight]

Its only the method to connect the control wire as far as I can see is the only difference

 

[polesapart]

Generally, different manufacturers' two and three port valves are cross-compatible as to body size and thread type.

TLDR; 98% chance you'll be fine.

 

[gas112]

Same size and you will prob get away with using the existing nuts and olives in place

 

[Rapidonset]

Excellent advice guys, many thanks.

Will go ahead and see if its like for like, otherwise the blow torch comes out to play ...

 

[andy_nufc]

https://www.free-instruction-manuals.com/pdf/pa_458187.pdf The numbers are all in here.

 

[Rapidonset]

Excellent. I found plenty of info from Drayton, but not seen that one with the dimensions