Silver globe with what looks like a presure relief

[Sawdoc34]

Hi there,
Does anyone know what this is & it's function on pipework beneath my combi boiler?
Cheers,
Alec

 

[Gasmk1]

It’s a shock arrestor

What does a shock arrestor do on a boiler?

shock arrestor kit is specifically designed to combat the problem of the expansion of water in the cold supply pipe in combi boiler installations that are fitted in close proximity to a water meter.

 

[king of pipes]

It's a shock arrestor , it helps protect your boilers components from water pressure when taps and showers are turned on and off. Kop

 

[Sawdoc34]

It’s a shock arrestor

What does a shock arrestor do on a boiler?

shock arrestor kit is specifically designed to combat the problem of the expansion of water in the cold supply pipe in combi boiler installations that are fitted in close proximity to a water meter.

Thanks for that info.....Will it be ok to blank it off & still use boiler until a replacement one arrives next week?
Cheers,
Aleck

 

[king of pipes]

Can't see it being a problem in the short term

 

[Sawdoc34]

Can't see it being s problem in the short term

Cheers

 

[Ricky]

It will depend on how much pipe there is before a non return valve, without it you can blow apart fittings if there is only short run, hot water has to expand some where.