Old Ideal central heating pump

[ciaoflyer]

Hello all

After 48 years my central heating pump has failed! Everything else still works, Ideal Standard 80n still fires up and burns well. I need to replace the pump but it doesn’t seem to have isolating valves. Here is a picture of it, any advice?

Thanks all!

 

[Dereekoo]

Drain the system repipe with isolating valves (https://www.screwfix.com/p/flomasta-gate-pump-valve-22mm-x/81629) and new pump. Operate the isolating valves every 6 months otherwise when you next need to use them they will be crudded up and stuck open