Mystery valve on CH primarys

[Tom Williamson]

Can anyone help identify this valve. LH 28mm is fed from a Ideal Mexico (being removed). HW is (was) gravity on separate 28mm so this is just heating only. I realise there will have been a handle at some point.

 

[ShaunCorbs]

Looks like it could of been an old servowarm selecter valve

 

[Tom Williamson]

Would it have the capacity to incorporate a solid fuel fire with back boiler?

 

[ShaunCorbs]

Would say no

 

[Tom Williamson]

Pipes dissapear under a concrete then laminate floor so having difficult to identify what all 4 do. Flow from Mexico, then maybe upstairs/downstairs heating but can't work out other?!

 

[ShaunCorbs]

I would say fill and safety vent combined maybe

 

[Tom Williamson]

Traced Feed and Vent on the HW primarys so they are separate,still stratching my head!

 

[Harvest Fields]

What do these letters say?

 

[Ric2013]

GKN on the bolts? Doesn't GKN make car driveshafts?

 

[Harvest Fields]

GKN on the bolts? Doesn't GKN make car driveshafts?

Looks like s***N

 

[quality]

S-GM-X proportioning valve

 

[Tom Williamson]

Customer had found original documents from 1963. LH is flow from boiler. Up is Upstairs heating, down is downstairs heating and RH 28 is tee back into return, so a bypass. Pretty clever stuff

 

[Harvest Fields]

Was about to reply that the only thing I could find remotely close was an old Sloan valve