Flow valve won't budge

[lockett]

Hello

Does anyone have any tips on removing the Flow valve on a Baxi Duotec, it feels like it's welded in. I have read that they can be a pain to remove.
I will be getting the recommended socket tomorrow, 18mm 6 pointed and hope that works, If not a very expensive unit change!
What would be the feeling on applying a little gentle heat to the housing, I know there are plastic parts in there but surrounded by water. The valve has to be changed, so any damage does not matter.

Thanks' for any advice given

 

[Deleted member 267285]

Usually just the 18mm socket or angled box spanner so I’ve heard. I have only changed one, didn’t have a socket at the time, so used my knipex grips.

 

[gas112]

yep ok to use a bit of heat some people use a freeze spray called crack it
give it a good sharp hit to try and free it first they do sometimes crumble leaving half of it in . If that happens then its a new housing

 

[lockett]

Thank you for all your advice, unfortunately what you said might happen did happen, it has crumbled. Looking like a new unit to be fitted.

 

[gas112]

if its the 28kw duotec without a bypass pipe on back of valve this will do it .

Pardon our interruption...

 

[gas112]

28kw with bypass .

Baxi Duotec Platinum 28HE, 33HE Potterton Gold 12L Hydraulic Inlet Valve 5114710 5039177659914 | eBay

Baxi 105 HE A INSTANT. Baxi DUO TEC 24 HE. Baxi DUO TEC 28 HE. Baxi DUO TEC 28 HE A (AFTER SERIAL NO.CAC0929 ISSUE 9). Baxi DUO TEC 28 HE A (BEFORE SERIAL NO.CAC0929 ISSUE 9). Baxi DUO TEC 33 HE. Baxi DUO TEC 33 HE A (AFTER SERIAL NO.BTH1112 ISSUE 9).

www.ebay.co.uk

 

[lockett]

Thank you for the links, I expected to pay a lot more than that.