connect 22 cm copper pipe to old 20 cm

[workhard]

Hi, guys, I am not a pro. I have an old water system with copper pipe approximately 20 cm(?). I have to manage to connect them with 22 cm. Are you usually just solder them together with 22 couplers? Or, any better ways?

 

[mysteryman]

You need 3/4 inch to 22mm fittings. The 3/4 refers to the bore size, not the outside diameter, whereas 22mm is the outside diameter. The 3/4 will be at least 40 years old, so it will need a good clean if you are using solder fittings. You can get 3/4 olives or O rings to go in 22mm compression or plastic fittings.

 

[xr4x4]

You sure it's not 3/4".

You can get 3/4" olives for 22mm compression fittings.

 

[thermistor]

are you trying to connect 22mm (metric) to 3/4inch (imperial). if so 22 x 3/4 couplers are available.

 

[workhard]

Thank you guys. Are there special pro-plumber shops for those couplers? I looked those diy shops, like B&Q, wickes, toostation, etc. and could not find any couplers which connect the inches to metrics.

 

[lightning]

http://www.toolstation.com/shop/Plumbing/End+Feed/EF+Straight+Coupler+22mm+x+34/d20/sd2698/p58244

 

[workhard]

Thank you very very much.

http://www.toolstation.com/shop/Plumbing/End+Feed/EF+Straight+Coupler+22mm+x+34/d20/sd2698/p58244

 

[muggles]

Plumbase
Plumb Centre
City Plumbing
PTS
Grahams

And many many more will all stock what you need