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Freezing is a phase transition where a liquid turns into a solid when its temperature is lowered below its freezing point. In accordance with the internationally established definition, freezing means the solidification phase change of a liquid or the liquid content of a substance, usually due to cooling. Although some authors differentiate solidification from freezing as a process where a liquid turns into a solid by increasing the pressure, the two terms are used interchangeably.
For most substances, the melting and freezing points are the same temperature; however, certain substances possess differing solid–liquid transition temperatures. For example, agar displays a hysteresis in its melting point and freezing point. It melts at 85°C (185°F) and solidifies from 32°C to 40°C (89.6°F to 104°F).

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  1. R

    Freezing machines - whats the best for hire fleet

    Hi All We are looking at adding some pipe freezing machines to our hire offer. I'm trying to compare the Freezemaster 420D with the Rothenberger RoFrost Turbo and the Arctic ARCEL. Does anyone have any experience of using these machines, and is there anything to choose between them? In...
  2. M

    Pipe freezing

    Alright guys, going to get a kit or take advice otherwise Basic use everyday, what would be best one to get, baring in mind I have never used one but think if I had I would use more, What do you lot think!!??
  3. KingDoey

    Freezing Heating Pipes

    So I have a private job coming up to install a towel rail in a bathroom. I can't be bothered with the hassle of draining down/refilling (always seems to turn a small job into a nightmare), so as the tails on the existing rad are fairly long I am going to freeze pipes. I haven't used the...
  4. R

    Pipe freezing kit

    Friends, Because of my antics yesterday I think I need to buy a pipe frezzing kit. I had a rothenberger one where you need to buy the tanks of gas but I sold it as too bulky (made a decent profit). Now I am looking at kits with the gas cannisters but want to buy a kit that works. Any...
  5. F

    Combi boiler vent on roof freezing up

    We had a new condensing "VOKERA COMPACT HE" boiler installed a few years ago .unfortunately the company went bust so we can't ask them.the first winter the roof vent almost froze right up .the icicles hanging from the vent were extensive.the boiler never stopped working so I hoped it would if...
  6. L

    How to keep your oil from freezing

    You let your old camray 5 non condensing flue warm the single skinned plastic tank, as the single skin allows for a quicker heat transfer than a bunded one would :bomb2: still the explosive ignition problem became clear once I extracted the lowest baffle and changed the nozzle and started...
  7. A

    help please im freezing

    Hi im at my wit's end with my boiler its a danfoss vaillant ecotec pro, and i just want my heaters to come on is there a simple button i can press, please can anyone help, i dont want to start messing with the timer and i dont have a clue how to work it anyway, and i can make no sense of the...
  8. K

    pipe freezing kit

    Hi all any one know of a decent pipe freezing kit out there dont want to buy a rubbish one something that will do up to 28mm thanks
  9. T

    How to prevent a pipe from the kitchen, running outside into the garage - freezing

    Bit of a weird one this. Went to a customers today and among a few rads they want me to fit, they have a problem with the pipe feeding their washing machine in the garage, freezing! its not surprising as it runs from waist height out of the kitchen wall , then in poly it runs down the wall...
  10. S

    Pipe freezing

    Hi folks, Probably a really daft question but when you freeze a pipe, surely you cant solder near it! I take it you freeze either side of where you want to cut so this middle section will be free flowing water? Do you then cut here and solder a fitting? I'm thinking if you freeze either side of...
  11. J

    Pipe freezing gas.

    Has anyone attempted to use CO2 gas on with a normal gas freezing kit with small bottles? In theory it will work and could save a lot of money spent on 700g bottles.
  12. J

    Freezing kits.

    Anyone got a POLAR ARTIC freezing kit and are they any good?
  13. L

    Turning off the mains when on holiday

    Im not a plumber but have a plumbing question so I guess this is where I ask it I work overseas most of the winter and have conflicting information about whether the water should be turned off and the central heating turned on. I left my house last week and turned off the mains and drained the...
  14. M

    Freezing Kits

    How reliable are they? To be honest I've never used one as it scares the hell out me thinking about cutting the pipe and am I going to get wet. ? Has any of you guys used one? Any bad experiences?
  15. H

    Siting unvented cylinder

    Don't worry, someone suitable will actually plumb it. As it's my loft, I've been tasked with siting the tank. Suitable platform has been done. Now, should be obvious, but thought I'd ask for any tips and advice about safely getting the tank through the loft hatch. I thought of a block and...
  16. G

    gasfit freezers

    can anyone recomend a value for money pipe freezing kit please
  17. K

    How best to protect pipes from freezing in a sport pavilion

    Looking for some advice on trying to prevent future frozen pipes on a sports pavilion built in 2008. It is owned by the parish council which I am now on. The pipes in roof froze last year and caused a big flood as no one went in building for several weeks afterwards, pavilion is only used by...
  18. M

    Pipe freezing kits

    Alright team, Never really bothered looking at these or having to ever use one. But I notice a lot of you boys down south go on about them a lot, and I know they are expensive so they must be handy! How many times do you find yourself using your kits, and what exactly do u use them for, like...
  19. F

    freezing iron pipe

    hey there fellas anyone able to advise as to whether 11/2" iron pipe can be effectivley frozen? Also who has the greatest range of transitional joints available for 1 1/2 iron to 22mm copper? cheers
  20. R

    Central heating not working, freezing Welsh girl in need of help! :)

    Right first off can I apologise if I make no sense at all, I’m not entirely sure what is what but I’ll try giving you as much of the story as I can and hopefully (and I really would be grateful) you could help me. In March my heating started making a terrible noise. Real clunky noise. We...
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