New Copper Pipes

[Anton Arvanitis]

Hello everyone,
I am planning to renovate my bathroom and will replace all the copper pipes. The apartment was built in 1949, and the incoming water comes in two externally visible chrome(?) copper pipes laid in a cement floor with a height of 5cm (from the floor to the first screw). With the caliper, I measure an outer diameter of 14.19mm. All the pipes in the bathroom are externally visible. The pipe to the shower has an outer diameter of 14.19mm, while the pipes to the sink and WC have an outer diameter of 11.19mm.

What are the new dimensions? Are they 15mm and 12mm? 15mm outer diameter for the shower and washing machine/12mm outer diameter for the sink and WC?

I am not sure if there are special compression fittings with transitions to old dimensions (securex (x) vatette system).
Is it okay if I anneal to expand the "floor pipes" as a sleeve?

Appreciate the help!

 

[Anton Arvanitis]

Hello everyone,
I am planning to renovate my bathroom and will replace all copper pipes. The apartment was built in 1949 and incoming water comes in two exposed chromed(?) copper pipes laid in a cement floor with a height of 5cm (from the floor to the first screw). With the caliper, I measure an outer diameter of 14.19mm. All pipes in the bathroom are exposed. Pipes to the shower have an outer diameter of 14.19mm, while pipes to the sink and WC have an outer diameter of 11.19mm.

What are the new dimensions? Are they 15mm and 12mm? 15mm outer diameter for the shower and washing machine / 12mm outer diameter for the sink and WC?

I'm not sure if there are special compression fittings with transitions to old dimensions (securex (x) vatette system).
Is it okay if I anneal to expand the "floor-pipes" like a sleeve?

Appreciate the help!

 

[Fotografen]

That is younger than -49.
Would say the same age as the carpets, 90s.
Should it be something other than 15 mm?
Is it spliced against something old m/49 in the floor?

 

[Anton Arvanitis]

That is younger than -49. I would say the same age as the rugs, 90s. Should it be something other than 15 mm? Is it spliced against something old m/49 in the floor?

I measure with the caliper the outer diameter which is exactly 14.19mm. And pipes to the sink and WC are 11.19mm.

 

[Immobil]

Could there be something wrong with the caliper? Uncalibrated?

 

[fribygg]

I measure with the caliper the outer diameter which is exactly 14.19mm.
And the pipes to the washbasin and WC are 11.19mm.

Do you have a digital caliper?

 

[Anton Arvanitis]

Do you have a digital caliper?

You are RIGHT!!!
My caliper measures WRONG!
I measured with a measuring tape and it is 15mm and 12mm!
What a relief!
Is it the correct measurement, 15mm pipes for the shower and washing machine and 12mm pipes for the washbasin and WC?
Thanks in advance!

 

[fribygg]

You are RIGHT!!!
My caliper measures WRONG!
I measured with a tape measure, and it turns out to be 15mm and 12mm!
What a relief!
Is it the correct measurement 15mm pipes for the shower and washing machine and 12mm pipes for the sink and WC?
Thanks in advance!

I haven't claimed that there's anything wrong with the caliper, but there is a risk that they reset and need to be recalibrated with digital calipers. 15mm chrome-plated copper pipes are standard.

 

[Thomas_Blekinge]

12 and 15 mm are today's standard measurements, and there is an abundance of connectors and accessories. It shows that it is not easy to measure correctly. Even if the caliper shows two decimal places, it's no guarantee that the measured value is accurate. Measuring such simple things as diameter can be quite difficult. We conducted measurement series that showed that the result is highly dependent on the individual, training, etc.

 

[Anton Arvanitis]

12 and 15 mm are today's standard measurements and there is a variety of fittings and accessories. This shows that it's not easy to measure correctly. Even if the caliper shows two decimals, it’s no guarantee that the measured value is accurate. Measuring things as simple as diameter can be quite difficult. We did series of measurements that showed the result is very dependent on the individual, training, etc.

Should one choose Soft, Semi-hard, or Hard Chromed Pipes (15 and 12)?
What is the best?
What type of pipe is in the photo (if possible)?