dead SMC Cadet CH pump, need to replace it

[RalphKiando]

Hello all, just joined, I need some advice on my central heating pump,

the existing pump which as far as I can tell is a SMC Cadet S, which I think dates from the early 70's, well it's gone & died this weekend, smells a bit burnt out & popped the fuse yesterday, I've got the pump motor off the body & found some of the internal windings connection broken/burnt.

what is the best replacement pump that will be a straight swap ?

 

[Nige F]

A Grundfos But measure the length of the pumpflange/pump flange. some of those ( though I think not yours) were longer and need spacers. That pump is possibly 1960`s

 

[RalphKiando]

Thanks Nige, I'll easure it tomorrow & see if I can obtain a replacement.

 

[tamz]

It will either be 130mm or 180mm. If 180mm you will need an extension piece unless the pipe can move 50mm

 

[Agile]

The SMC pumps were surprisingly reliable and even after 30 years there are still a few still working.

Most are replaced while still working on system upgrades!

The latest pumps are more powerful and the system may operate rather differently.

Any pump is better and I would almost suggest the cheap DAB pump as a suitable replacement although the Grunfoss is a very good.

Tony

 

[RalphKiando]

Thanks Guys, I'll let you know how I get on with changing the old dead one.

 

[RalphKiando]

just to close this one down, I bought a Wilco Gold 50 130mm pump, which according to it's box is a suitable replacement for the old pump, it's now fitted & working, had to extend a short section of pipe by replacing it with a longer section,

Thanks to all who replied for your assistance.