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lever

A lever ( or US: ) is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum. A lever is a rigid body capable of rotating on a point on itself. On the basis of the locations of fulcrum, load and effort, the lever is divided into three types. Also, leverage is mechanical advantage gained in a system. It is one of the six simple machines identified by Renaissance scientists. A lever amplifies an input force to provide a greater output force, which is said to provide leverage. The ratio of the output force to the input force is the mechanical advantage of the lever. As such, the lever is a mechanical advantage device, trading off force against movement. The formula for mechanical advantage of a lever is




Load


/


Effort



{\displaystyle {\text{Load}}/{\text{Effort}}}

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  1. B

    New Lever tap for kitchen query

    Good morning, I am not able to take photos of the following query but will describe it in as much detail as possible. At the moment I have an old style mixer tap in the kitchen (the one where you turn the handles) and the pipework seems fine (white pipes/wastepipe etc) the copper ones linked to...
    • BobbyJoe
    • Thread
    • america kitchen lever new query tap usa
    • Replies: 5
    • Forum: USA
  2. Inverness

    Doc m cistern what is the name for the lever mechanism

    Needing the lever mechanism but don’t know where to buy it from. Doc m armtage shank toilet
  3. L

    Strange noise coming from lever tap

    Downstairs wc wash hand basin has started making a high pitched whining noise. Also water running through when it is closed. Noise doesn’t go off when tap opened on either hot or cold. Have turned off the water just now, which has stopped the noise, but obviously now no water Do I need a new tap?
  4. C

    Bathroom basin tap, no screws - help!

    Hello people. I have a leaky/dripping hot bathroom basin tap and loathe to waste a plumber’s time bringing them out to change a washer, so I’m keen to sort myself. I looked up a few guides online and was ready to go! However my basin tap has no screws, no cap to pop off, etc. to get at the...
  5. J

    Monobloc twin lever mixer tap leaking from spout with taps off!

    Hi, I have a Twin lever Monobloc mixer tap leaking from the base of the spout, there are many answers to this problem online, however, the majority of issues are when the water is on and the tap is running, in my case, the base of the spout is leaking when the taps are off. Would this mean...
  6. P

    Single lever monobloc mixer tap with new cartridge is still leaking (not dripping from spout).

    The tap was leaking from its body (under the 2-way swivel handle; where you access the big brass nut and the cartridge) when turned ON more that a little bit. I've replaced the cartridge and it leaks in same way. It doesn't drip from the spout nor leak when turned off. So, as far as I can see...
  7. A

    Bristan Echo kitchen mixer lever screw.

    Sounds simple but this is causing some aggro. I can't release one of the screws which holds the levers in place. It has a domed/pan combined crosshead/flat blade head and has been in place for some seven years. The water around here is quite aggressive and causes a lot of scale so I guess the...
  8. J murton

    Lever tap with H & C feed changed to Non Concussive. Is a TMV required

    Hello We have 3 lever taps that need to be changed to Non Concussive for the customer. The hot feet is from a small water heater and cold off the mains I think. The Non Concussive Tao obviously only has one feed into it. So my question is do I need to no fit a tmv to mix both hot and...
  9. S

    Swapping handles Pegler Lever ball valves

    Quick question. I installed some Pegler lever ball valves (22mm, water) and because I was tired I messed up my red/blue hot/cold colour code. Rather than swap the valves over (which I can do) can I just swap the handles over?
  10. M

    Can i use a ball lever as mains stopcock

    Hi, Is it OK to use a ball lever as a mains stopcock? ive read a few old threads but none of them seem to have definitive answer! also can you use plastic / push fit off a mains stopcock or does it have to be copper?
  11. J

    Full bore lever valves, 15 & 22mm - what do you pay?

    Morning, What do you pay for full bore lever valves, 15 & 22mm? Personally I've found Williams to be the best price at £3.20 & £4.45. Cheers in advance
  12. A

    Need thought on how to open up single lever tap

    Hi. We moved into our house last year and the kitchen tap has been dropping since we've moved in. Finally getting around to looking at it! I'm guessing it's just needs a replacement washer or something, but I can't figure out how to open it up. Any ideas? It's a Swan neck tap, with a single...
  13. D

    WHICH WAY TO TURN RED LEVER ON FULL BORE ISOLATION VALVE (LEVER TYPE)

    Hi I know this is a simple question but is it a quarter turn clockwise to turn this off?. I know the screw type ball valves under the sink turn to OFF with either a quarter turn left or right...BUT is it the same principle for the full bore lever type...OR is it ONLY a quarter turn clockwise...
  14. C

    Single lever mixer tap - no cartridge?

    Hello everyone, I'm fixing a single handle mixer tap in a friends toilet basin. It's dripping slowly on either rotation of the handle. I've stripped down the tap and accessed the internals but there is no cartridge in this tap as when I search spares for miser taps it always shows cartridges...
  15. L

    Replacement part for push/pull lever sink plug.

    Hi there, My nephew pulled off an already slightly coroded under sink connection rendering our pull/push lever sink plug useless and leaving us with a hole under the sink which leaks if water is run in to the basin. I've got several photos showing the mechanism and i'm hoping someone might be...
  16. W

    Monobloc tap one of the lever handles working loose

    I have just had cause to change the hot ceramic valve (VR04 Type) IN my kitchen tap because it was dripping. The replacement valve has cured the drip but the M4 securing screw that came with it was shorter than the original and did not protrude through enough to engage in the head of the valve...
  17. V

    Looking for shower lever valve

    Hello everybody, I'm a novice in plumbing and I've been given a specific item to find for someone bathroom, but I don't really know where to start or where can I find it, so I'm hoping that someone might be able to help me. I need a 3/4 inchchrome lever valve, they have to be 3/4 inch inside...
  18. M

    Franke Olympus - valve replacement

    I'm trying to replace the ceramic valves in a Franke Olympus tap. I have removed the grub screw from the tap lever, but the lever wont budge, so I cant gain access to the valve. Any ideas?
  19. J

    Sunvic motorised valve 3 port query

    I was having a few problems (rads on with only water switch down). Engineer came and fitted a new three port valve and acutator (was Danfoss, fitted Sunvic SD2701). the Sunvic has a metal lever, one side says normal use, the other end say flushing only. The metal lever can be locked on either...
    • JessDay
    • Thread
    • 3 port heating lever motorised motorised valve normal query sunvic valve water
    • Replies: 11
    • Forum: Plumbing Jobs | The Job-board
  20. A

    Please help - boiler filling loop problems

    I have an Alpha CB24 combi boiler and it's just given me the red/orange alternate flashing lights. So I've googled the problem and what I need to do is re-pressurise the system; apparently it's an easy fix. But on my boiler, there's only one black switch and I can't make it turn. It moves...
    • Aviva
    • Thread
    • black boiler filling filling loop help lever oil please problems valve which
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
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