Colour coding

[LeeJC]

Hi,

Just had a corgi guy round to quote for fitting my pipework and installing the boiler, and i said i would tape up the current 15mm run for him in yellow, just wondering while i was discussing it with him, is there a colour code system for DHW hot/cold and CH feed/return pipework???

 

[corgiman]

no there its

but I would suggest red for hot and blue for cold

I usually use what ever colour tape I have in me van for flow pipes if I am on a complicated system that may take some time to finish, or if I plan to cane the cider that week, so I may forget.

Water shower from the hob anyone?

 

[LeeJC]

Cheers Corgiman.

I'm going to go with red/blue for hot and cold, but while i have the floor up i was going to tape up the CH pipes as well, Black for back and green for out.

Sounds like a plan to me.

Cheers.
Lee

 

[corgiman]

just make sure you write down a key

would be funny half way through think "what the eff is the green again"

 

[chrishutt]

There is a standard colour coding system for pipework, but it really only applies to commercial and industrial stuff. Water will generally be green (but with different coloured bands), irrespective of whether it's cold, hot or heating, which is a bit over complicated for domestic use.

Colour code indications for pipework

Drinking Water - Green Blue Green
Grey Water - Green Black Green
Reclaimed Water - Green Black – White - Black Green
Cooling (primary) - Green White Green
Boiler feed - Green Crimson – White – Crimson Green
Condensate - Green Crimson – Em Green - Crimson Green
Chilled - Green White – Em Green – White Green
Heating < 100oC - Green Blue – Crimson – Blue Green
Heating > 100oC - Green Crimson – Blue – Crimson Green
Cold distribution - Green White – Blue – White Green
Hot distribution - Green White – Crimson – White Green
Fire distribution - Green Safety Red Green
Sea, river-untreated- Green
Gas Natural - Yellow Ochre Yellow Yellow Ochre

 

[Bahco]

I said i would tape up the current 15mm run for him

I would think he would like to check for himself as to which pipe goes where!

I relied on a builder before who told me where the existing F and R were and ended up cutting into a 22mm rising main

 

[corgiman]

we have all done that one Bahco

lmao

 

[Bahco]

Lovely early shower that day