Side Entry Ball Valves (2 of 2)

[ShaunCorbs]

water board regs and wras regs people plz need to be 1000000000000000% right which way i go

Note This Is A Commercial Setting Eg Schools Etc Where High Traffic Is Normal

during the schools shut down (aka school hols) 3 (me, building inspector and water-board) of us went round inspecting the water and heating systems in schools, we do this every 3 years to look for problems and check water meters etc,

went to a well brand new school (2 years old approx) everything ok heating and meter wise etc, the last thing we have to check is toilets, undo the the concealed panels takes the lid off the cistern, water board guy takes a look for wasting water etc (jobs-worth ) and see a brass ball valve (part 1) extended arm (which i love brass ball valves because theres less wear and easy to change parts but thats going off point ) and hes says thats illegal so i take a look and theres a dcv on the incoming main just after the iso and hes still said its illegal as water can still back flow.

now before i challenge him i want to make sure im right and dont want to charge the local a shed load to change every valve in the school if i am

summary can you use a part 1 with a dcv and be water regs ok etc

if no what ball valve can i fit needs to have an extended arm (float arm) and would like it brass if pos, because he also said you cant use one of these with the plastic silence tube on as that one can back flow (part 3)

i think i have made it as clear as i pos can
any q please ask

 

[Old Account]

Alright so if I use pt2 then it's already build in ?

 

[jaydebruyne]

whats the difference other than the looks if they both conform to bs1212

The position of where the water exits the valve

 

[ShaunCorbs]

Even if they have a piped overflow set too high the water level would normally spill over the syphon in to the pan before it reached the outlet on a part 2.

it does now with a part 1 thats what i couldn't understand

 

[Old Account]

What will happen in the to me if I use a wrong float valve ?

 

[ShaunCorbs]

The position of where the water exits the valve

so they could both back if the water goes high enough

 

[solutions]

I am so happy we do not have such issues in Germany we hardly have tanks in the loft ... Gravity dies out there ... Most of the time we have geberit frames for toilets ...

Yes and surface mounted issolators for almost everything and the little magnetic tile panels in the side of the bath to hide the floor gulley, loads of bathrooms I have been to in germany have the washing machine in them too. You do lots of things differently many of them better by design.

 

[jaydebruyne]

Alright so if I use pt2 then it's already build in ?

No, because the water exits above the valve, there is no chance of water reaching it and causing backflow if the valve fails..

 

[solutions]

it does now with a part 1 thats what i couldn't understand

Then just a case of the regs say so. Even if there is no potential contamination risk present.

 

[Old Account]

No, because the water exits above the valve, there is no chance of water reaching it and causing backflow if the valve fails..

True now I got it today a bit thick

 

[ShaunCorbs]

Then just a case of the regs say so. Even if there is no potential contamination risk present.

thnx

 

[ShaunCorbs]

thnx guys looks like ive got the job do doing them

 

[Old Account]

Yes and surface mounted issolators for almost everything and the little magnetic tile panels in the side of the bath to hide the floor gulley, loads of bathrooms I have been to in germany have the washing machine in them too. You do lots of things differently many of them better by design.

Yeah that's true ... That's why I struggle sometimes with British standards. Yes washing machine is most of the time in the bathroom too ... Also we have got 220v in bathrooms not 16v for shaving

 

[solutions]

What will happen in the to me if I use a wrong float valve ?

Absolutely nothing. But you will know its not right and as a German you know there is nothing worse.

 

[Old Account]

Absolutely nothing. But you will know its not right and as a German you know there is nothing worse.

Hahha ... Yeah it does my headache if I know I'm doing wrong

 

[plumben]

Alright, talked enough ...

For me is clear now I will use part 2 including a double check valve instead isolation valve and I am on the safe side. That's all I wanted to know cheers all for the massive help

I'm not sure if you missed out or worded this wrong but you should always use a service valve \ isolation valve
Before any appliance\tap\cwsc... then any check valves or other valves required

As every outlet should have the ability to be independently isolated although not always possible or practical