Loading Unit Calculation

[mineth]

Please anybody can tell me what is the meaning this " Sink, 20mm sep./mix tap " regarding to Loading unit Calculation.
Reference: Plumbing Engineering Services Design Guide, Page 13

 

[missplumb]

its a sink tap with 20mm bore either seperate or mixer.
what bit are you stuck on??

 

[Ermintrude]

Loading units is function of amount and frequency of use no?

 

[oz-plumber]

I may be mistaken, but, we call them fixture units.

Each fixture has a rating which will determine drain size and water supply pipe size.
In most domestic situations it's really not a concern, but does come into play on larger homes, blocks of flats / units and larger facilities. eg. school toilet blocks.

You can add up the fixture units to determine the size of drain required and the size of the vent ( if needed )

 

[snowhead]

Strange,
On a Google search this O.P comes up as May 2012,,

https://www.google.co.uk/search?q=l...&oe=utf-8&gws_rd=cr&ei=7PmYVfqcG7GX7Qbp8raYAg

Loading Unit Calculation - Plumbing Forum
www.ukplumbersforums.co.uk › ... › Plumbing Forum
13 May 2012 - Please anybody can tell me what is the meaning this " Sink, 20mm sep./mix tap " regarding to Loading unit Calculation. Reference: Plumbing.

 

[jonnyswamp]

Strange,
On a Google search this O.P comes up as May 2012,,

https://www.google.co.uk/search?q=l...&oe=utf-8&gws_rd=cr&ei=7PmYVfqcG7GX7Qbp8raYAg

Loading Unit Calculation - Plumbing Forum
www.ukplumbersforums.co.uk › ... › Plumbing Forum
13 May 2012 - Please anybody can tell me what is the meaning this " Sink, 20mm sep./mix tap " regarding to Loading unit Calculation. Reference: Plumbing.

Its the secret services way of communicating with their agents without raising suspicion......thought everyone knew that

 

[snowhead]

Its the secret services way of communicating with their agents without raising suspicion......thought everyone knew that

Didn't THEY tell you in your Induction not to tell anyone that, they did in mine.
Damn. I think I may have just been elimin

 

[jonnyswamp]

I've just noticed two men in black suits and shades stood on the top of our lane










It's OK they're just peddling copies of the Watchtower

 

[missplumb]

In the book he mentioned, loading calculations are use to calculate the size of pipework and cylinder etc for hot water demand. As Oz said, there is a fixed figure for how much water a tap, shower, wash machine, etc uses. You would then add all these up to give you a figure which you put in the calc to size correctly. Basically the same idea as hear loss calcs to determine rad and boiler sizes