Search the forum,

cylinders

A cylinder (from Greek: κύλινδρος, romanized: kulindros, lit. 'roller', 'tumbler') has traditionally been a three-dimensional solid, one of the most basic of curvilinear geometric shapes. Geometrically, it can be considered as a prism with a circle as its base.
This traditional view is still used in elementary treatments of geometry, but the advanced mathematical viewpoint has shifted to the infinite curvilinear surface and this is how a cylinder is now defined in various modern branches of geometry and topology.
The shift in the basic meaning (solid versus surface) has created some ambiguity with terminology. It is generally hoped that context makes the meaning clear. Both points of view are typically presented and distinguished by referring to solid cylinders and cylindrical surfaces, but in the literature the unadorned term cylinder could refer to either of these or to an even more specialized object, the right circular cylinder.

View More On Wikipedia.org
Recent contents Top users
  1. H

    Spa 87

    Trying to find upper 3KW immersion and timer for 3 X 1KW immersion heaters (lower cylinder) for a Spa 87 unvented cylinder(Omega???). On the side of the cylinder it had a Warwick address, but the phone lines dead.Any help greatly appreciated.:confused:
  2. N

    anyone know where one of these is available

    Hi all, I need to do some diy stuff and was after one of the bernzomatic pencil flame ts1000 power torches, it seems its discontinued and I can't for the life of me find anyone with one on the shelf, anyone seen one lately or have one going they dont use anymore, greatly appreciated if anyone...
    • nickwo
    • Thread
    • anyone available burner cheap cylinders diy flame gas google head listed power spare stock these where
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  3. L

    hw cylinders piped up in hep20 is this allowed ?

    never seen this before or heard of it . I dont think this can be right . what say you ! cheers
    • leeking
    • Thread
    • allowed boilers copper cylinder cylinders diy hep20 hep2o hot job metal pipe piped pressure unvented valve warning work
    • Replies: 10
    • Forum: Plumbing Jobs | The Job-board
  4. L

    Joining two unvented cylinders.

    Hi I'm a selfbuilder looking for advice on joiing two unvented cylinders in series one above the other together. What I am after is to gain an extra input coil. Do you think this is possible? I have an existing twince coils 300 litres Megaflow in the loft and a single coil Keston Spa 200...
    • Long
    • Thread
    • building building regulations connect control cylinder cylinders gravity hot hot water leak loft megaflow motorised valves pump regulations safe safety store system thermal thermostatic unvented valves water work
    • Replies: 14
    • Forum: Plumbing Jobs | The Job-board
  5. S

    Spanish plumbing

    Going to Magaluf for a 4 night Stag on Wed:D:D:D I expect to be hugging a Spanish toilet at some stage..:( Might need 2 weeks off to recover.:eek:
    • Spudhater
    • Thread
    • bar budget compare cylinders gas plumbing toilet train unvented vented
    • Replies: 19
    • Forum: Plumbing Jobs | The Job-board
  6. W

    Big Unvented Cylinders!

    Hello gents. I did the unvented course a few years back and was told that it only covered cylinders up to 500 litres capacity. Does anyone know which qualification you need to install over 500 litres? Know of any providers in the Bristol area?
  7. H

    old rother boiler cylinders

    i have come across two old rother boiler cylinders connected in parallel. the vents meet and terminate in adjacent loftspace. but before they meet they both drop (pipe drops) towards the ground beside the cylinder. the pipes are open at the end and seem to serve some safety function. a safety...
    • hotpants
    • Thread
    • boiler cylinder cylinders oil old pipe pipes plumber safe safety safety valve valve valves vent
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  8. J

    Ariston Unvented HW Cylinders

    Why do these in particular, c/p Megaflows et al, seem so prone to corrosion on flanges....and with the casing and insulation they all virtually impregnable so attempting to work on them is a nightmare......overhauls seem impossible......or perhaps its not corrossion but a sustained 'weeping' but...
    • JohnC03
    • Thread
    • ariston cylinder cylinders eco electric electronic error heater hot hot water immersion heater insulation insurance no hot water pipe plumber plumbers pressure tank unvented valve waste water work
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  9. V

    Cylinder leak on 1500x450 .

    Advice please , I have been fitting new cylinders since I started plumbing proffessionally ( I think ) about 4 years ago and I thought I new how to do them , but I not sure now . Yesterday I replaced an old leaking cyl with a new Indirect open vented one 1500 x 450 , heated by an oil...
  10. W

    Pumps to empty cylinders etc

    my friend gave me a pump that you attach to the end of your drill and where you attach a piece of hose to either end. Its supposed to suck water in through one end and churn it out the other. this one doesnt seem to work, not sure whether its just broken etc. But can anyone reccomend a...
    • wrecked_24_7
    • Thread
    • building cistern copper cylinder cylinders drain empty hose hot job pan pipe plug pond problem pump pumps remove tank water work
    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  11. M

    atmos multi boiler unvented cyl?

    are these classed as unvented cylinders? the installer I was going to use for changing my current combi is'nt registered for unvented sytems.
    • moody_gaz
    • Thread
    • boiler combi cylinders gas gas safe installers multi oil safe unvented vented
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  12. D

    Age of HWSC

    Whats the expected life of a HWSC? mine was commisioned in 1988 and ive been told thats way too old
    • Drunkn Munky
    • Thread
    • central central heating cold copper cylinder cylinders eco fitting heating leak leaks replacement water work
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  13. H

    Water Softeners & unvented cylinders

    hi , are there any problems using Water Softeners with unvented cylinders?
    • heatman
    • Thread
    • cold cylinder cylinders heater high problem tee unvented vented water water heater water softeners
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  14. I

    advice on unvented cylinders

    hello all i am in the process of buying an unvented to replace my thermal store(boiler mate 2) i know that the very best would be a mega flow however i am on a budget i need a 170l indirect unvented (3 beds 1 bath 2 adults 1 child) there are many cheeper versions, ariston,santon etc and 1 by...
    • impo
    • Thread
    • advice bath boiler budget cylinder cylinders flow indirect stainless store thermal unvented vented
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
  15. R

    plumber skills

    Which skills do I need to be a plumber?
    • ramya
    • Thread
    • 6129 apprenticeship bathrooms courses cylinders fast fast track find heating job jobs leeds nvq plumber plumbers plumbing redundant skills starting out studying test tiling trade train water wiring work
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
Creating content since 2001. Untold Media.

Newest Plumbing Threads

Plumbers Forum - Plumbing Advice
Tiling Advice Live
Tiling Advice
Tiling Forum
Tile Advice
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock