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bleed

In printing, bleed is printing that goes beyond the edge of where the sheet will be trimmed. In other words, the bleed is the area to be trimmed off. The bleed is the part on the side of a document that gives the printer a small amount of space to account for natural movement of the paper during guillotining, and design inconsistencies. Artwork and background colors often extend into the bleed area. After trimming, the bleed ensures that no unprinted edges occur in the final trimmed document.It is very difficult to print exactly to the edge of a sheet of paper/card, so to achieve this, it is necessary to print a slightly larger area than is needed and then trim the paper/card down to the required finished size. Images, background images and fills which are intended to extend to the edge of the page must be extended beyond the trim line to give a bleed.
Bleeds in the US generally are 1/8 of an inch from where the cut is to be made. Bleeds in Europe generally are 2 to 5mm from where the cut is to be made. This can vary from one print company to another. Some printers ask for specific sizes; most of these companies place the specific demands on their website or offer templates that are already set to their required bleed settings.

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  1. M

    Replacing a bleed nipple

    Hi, I seem to have lost a bleed nipple from one of my rads somehow. It’s a double rad, one side of the rad has a nipple, the other is gone and I need to bleed it to stop the bubbling noise. How can I fix this please? Is it possible to buy a new one and if so how do I know what to ask for...
  2. W

    Old radiant heater system bleed valves

    Hi, I'm in New Mexico US... I have a fifties boiler with floorboard radiant hydronic heating. The old valves are corroded and not working. I have found a bushing valve combo that has same threading but different profile. Please anyone knows of source for old valve types... Or, can the new...
  3. B

    Recommendation for Radiator Bleed Valve

    I bought the a bleed valve from S****fix about a year ago: s****fix.com/p/radiator-vent-blanking-plug-nickel-2-pack/40972 It worked fine initially, but I noticed that the little bleed screw needed to be turned a little tighter each time I bled that radiator to seal it up again. Having bled it...
  4. A

    Radiator Bleed Valve - 1/8-27: Thread Type

    Morning all. I hope this is the correct place for this post. If not i'll happily move it to another forum area. I am renovating a property and the old cast iron radiators need a refresh, and i'm going to fit some new bleed valves amongst other things. The female thread in most of the rads...
  5. C

    Spare bleed screw for Grundfos boiler pump? Please help!!

    Hi all, After trying to solve my boiler problem via YouTube as my usual plumber wasn't available, I have stupidly dropped Grundfos bleed screw below the boiler and it has fallen through a gap which is inaccessible. Is there anywhere I can buy spares for this part only or someone who could...
  6. B

    Remove towel radiator bleed valve

    Hi, We moved into a house a couple of years ago and inherited some "interesting" plumbing throughout. Today's problem is that the bathroom towel radiator that wasn't heating up, so I looked at it and guessed that pushing in the "button" on what appeared to be a bleed valve would bleed it. Sure...
  7. D

    How do I bleed a boiler with air in it?

    Hi I have drained my system to install a magnet filter on the boiler inlet and put some x400 into the system to leave for a few weeks to combat some growing sludge. After draining it and then refilling and bleeding the radiator floor by floor from the top floor down the boiler has air in it...
  8. S

    How do you bleed new style grundfos pumps?

    Just wondering how these new style pumps can be bled if there's no longer a big bleed screw in middle? Any comments on this hugely appreciated. Thank you
  9. M

    Broken bleed valve massive escape of contaminated water

    Hi everyone. Really need some urgent advice on how to sort this and why this happened. Our normal plumber/gas engineer has been cleaning our heating system due to loud knocking noises the year before and after tests of water were done he used F3, then DS40 & F1 per the results, but nearing the...
  10. A

    Old radiator bleed valve key

    Does anyone know what key is needed for a bleed valve like this? None of the ones I have seem to work
  11. Steve150360

    Broken air bleed valve has gone into radiator

    Is this a problem that a section of air bleed screw is rattling around in the radiator
  12. V

    How to bleed sealed system

    Looking at a friend's system yesterday. The boiler is refusing to fire and showing a fault code indicating no water flow. The pressure vessel gauge shows a pressure of 1 bar. I concluded the schematic was roughly as shown here I'm concerned that the pressure vessel gauge could still register...
  13. I

    Draining down when a radiator bleed valve is broken

    Hi. This is probably a stupid question but I'm told my combi boiler needs draining for a repair but the boiler isolation valves cannot be shut so the system will have to be drained. Unfortunately the radiator in my bedroom can't be bled so I don't want it to be drained if it means air getting...
  14. L

    Any ideas on how to bleed these valves?

    Hi all, my towel rail is only half heating up and I'm guessing it needs bleeding, thing is it hasn't got your usual bleed valves installed, so how do I go about bleeding this rail? Hmm it won't let me add pics??. Basically its a flat head screwdriver kind of valve head, I've tried searching on...
  15. W

    stuck radiator bleed screw

    There is air at the top of our old radiator( probably fifty years old) in the first floor bedroom. Unfortunately the radiator bleed screw is stuck and does not respond to the small T type radiator key. If I use pliers on the radiator key to apply extra leverage to try loosen the bleed screw...
  16. S

    Radiators won't bleed unless the system is on

    Hello. I am sorry to open this with an admission: I made a dumb mistake and am seeking any help possible, thanks in advance --- The pressure dropped on my boiler, so I opened the usual valve and let it climb up to 1.5 bars. I've not been in this house long, so the boiler is new to me. I closed...
  17. S

    Unvented Cylinder loses pressure when I bleed radiator

    my unvented cylinder system has been losing pressure. So I started the investigation as to whether it is losing pressure due to hot water or heating. So waiting for spring / summer when I don’t run heating much. I can see that only one of the radiators which I need to bleed as it is always cold...
  18. A

    Acova 4 column rad bleed valve

    Hi there I have a 4 column rad and can’t locate the bleed valve. Rad has been warm and not hot for quite some time and wanted to let out the air but not sure how. Please see pics attached and let me know if I’m missing something? thanks.
  19. C

    URGENT Old radiator and no key, how do i bleed or just replace?

    I have a very old radiator for which we cannot find a key for. It desperately needs bleeding, any ideas on how I can do it or is it time for a new radiator?
  20. N

    New bleed valve or new radiator?

    Our radiator is leaking from around the bleed valve. Not sure if the damage around the valve is superficial and it could be fixed by replacing the bleed valve or if we need a new radiator. Would appreciate any advice!
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