28mm copper pipe instalation?? Commercial plumbing

[Ecoplumbing]

Can anyone help??!!!
Been asked to carry out a cold water mains installation to serve a fire hose from an existing copper pipe in a factory. The pipework will need to run 16m horizontally then drop 8m vertically. The pipe will be 28mm copper. my issue is will this length of pipework be affected with expansion, ie does it matter if compression fittings are used?
Also what is the best way of clamping the pipe to a steel support beam ?

 

[Starky]

right couple of pointers

get approval from the water supplier / board first as sometimes they class fire reels as cat 5

but what are you doing about backflow prevention ? if its class as 3/4

i wouldn't worry about expansion at that length its not going to be much 25mm at most (more like 10mm)

you have a few options depending on what steel beam you have

M10 Vertical Flange (1-5mm) Threaded Rod Hanger

Flange Clamps Lindapter & BTS

Heavy Duty Beam Clamp ( Pair)

25-30mm Surefix XL Rubber Lined Pipe Clamp -

i would press fit tbh

geberit 28mm press fit fittings

Copper | Pipekit

and you can hire the tool for about £150 a week (£ 40 a day) roughly

Sorry for going slightly off topic but why would exspansion be an issue if its mains cold water that won't be heated?

 

[ShaunCorbs]

Sorry for going slightly off topic but why would exspansion be an issue if its mains cold water that won't be heated?

thermal the water wont stay at the same temp all the time so you have to allow for this

 

[Ecoplumbing]

Yes, winter and summer months room temperature will be very different. That's why I asked. Some very knowledgeable people here, nice that they help each out

 

[Starky]

Hi ecoplumbing, it does seem like a nice place here.

How would you allow for the exspansion? Going a pipe size up or vessel?

 

[ShaunCorbs]

Hi ecoplumbing, it does seem like a nice place here.

How would you allow for the exspansion? Going a pipe size up or vessel?

TBH I wouldn't allow for it, just make sure you don't put a clip straight after (within 1 foot) a elbow

Anything over an 1" I would allow for

 

[Starky]

Shauncorbs. Thanks for your reply on this thread and others. You have been great help.

What is the reason for putting a clip 1ft after the first elbow. Would it cause the pipe to fracture the clip.

I don't think I'll come across this scenario as I don't do commercial plumbing. But it's all way good to know.

 

[ShaunCorbs]

Shauncorbs. Thanks for your reply on this thread and others. You have been great help.

What is the reason for putting a clip 1ft after the first elbow. Would it cause the pipe to fracture the clip.

I don't think I'll come across this scenario as I don't do commercial plumbing. But it's all way good to know.

To allow some expansion (can move 5mm)