restrictor

A restrictor plate or air restrictor is a device installed at the intake of an engine to limit its power. This kind of system is occasionally used in road vehicles (e.g., motorcycles) for insurance purposes, but mainly in automobile racing, to limit top speed to provide equal level of competition, and to lower costs; insurance purposes have also factored in for motorsports.

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  1. D

    Worcester 24i - dhw flow reduction problem

    Hi, Hoping to get some help with oldish boiler - Worcester 24i RSF. Over the last few years the pressure on the DHW has dropped by about half (still just about useable for shower) and also the water temperature is very high due to this slower flow (no adjustable temp control on these, set by...
  2. M

    faulty flow restrictor?

    Was working on an old worcester 240 rsf today. Problem was hot water not heating up well, no signs of overheating. I replaced the hot water heat exchanger thinking it could be limed up but I was wrong. the white restrictor that fits into the connection looked ok but when I measured the flow rate...
  3. H

    worcester cdi flow rate issue

    hey everyone wounder if you could help. Having problem with above boiler when using shower or opening 2 hot taps . When opening the hot tap downstairs shower starts to trickle out. The flow rate is 16 l per min at cold inlet at boiler hw draw off at boiler is only 10l per min the incoming...
  4. M

    fire restrictor elbow plugging?

    Hey fellers, I have been asked by a client to remove a gas pipe that goes into their fireplace as it is in the middle and capped off it and capped and they want to put a proper fire basket in. So is it alright for me to just plug the restrictor elbow by the fire place as they don't want me...
  5. D

    tap flow restrictor

    i have changed my old gravity fed system witha combi - boiler heating and hot water. there are too much pressure and noise on all taps. shower pressure is good no problem. when I restirct flow through existing ball valves below sinks, they creates noise. there are a few flow restrictors in...
  6. S

    hot water restrictor

    Can anyone help please i have no hot water upstairs red hot downstairs. any way i can change or remove the water settings on the resitrictor. Is it the big metal thing under the bath that is the restrictor ? Please can someone help im fed up of cold baths and cant afford a enginneer to come out...
  7. B

    Worcester-Bosch Flow restrictor

    Hi all. Does anyony know if you can purchase the flow restrictor HOUSING for a W/B Greenstar 30si? I'm not talking about the restrictor or the flow switch, but the housing. The housing is not listed in the spares diagram or online in Preston. It came to light while I was changing the flow...
  8. F

    low hot water flow rate

    Hi, I have a vokera linea 28 boiler, we have had it for approx 9 years, and it is always annually serviced. The hot water flow rate is terrible and must have got this way slowly over time as I cant believe it was initially like this, the cold water rate measured at the kitchen tap is 9...
    • fossilbluff
    • Thread
    • boiler exchanger flow flow rate helvetica hot hot water restrictor water
    • Replies: 11
    • Forum: Plumbing Jobs | The Job-board
  9. M

    Gas Restrictor elbow

    hi just a general question that me and a colleague have been squabbling about ;p ,is it a legal requirement to fit a Gas Restrictor elbow to outset radiant fires.me myself say you dont need to as long as theres a way of isolating the fire close by. seen one the other day where the gas cock was...
  10. GQuigley67

    restrictor rings

    looking for a 82mm restrictor ring for a vokera compact 25he, will I need to phone vokera for it or would I be able to pick one up at a local suppliers ?
  11. P

    Do we "have " to use restrictor elbows on gas fires?

    As above. Whats the difference in just using a normal gas cock?
  12. C

    wc cistern hummiing

    I was on a job today one of the jobs was to see why the wc cistern was making a humming noise, it seems to be making the noise just as the float valve shuts off. So i changed the float valve and its still making the short sharp humming noise as it shuts off,any ideas as to what is causing this...
  13. F

    Domestic Hot Water flow restrictor position - help required

    Hello, I'm having trouble with my hot water flow to the taps in my house, I'm relatively certain it's the flow restrictor. When I watched the guy pipe it in I remember him dropping it in but I can't for the life of me remember where it went. I've had several unsuccessful attempts at locating...
    • fist_me_gently
    • Thread
    • attach boiler domestic flow help help required hot hot water position remember required restrictor right second water
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  14. L

    Ideal Standard Conceala 2 High Pressure Restrictor

    Hi! I've come to fit my new Conceala 2 concealed cistern today - pan on flush bend sorted - I went back to find the instructions to read about the high pressure restrictor that comes installed and I've lost the installation instructions so was wondering if anyone could help? First off...
    • LukeTheGooner
    • Thread
    • bar cistern conceala concealed cistern flush gravity head high high pressure ideal installation mains pan pressure restrictor standard system water water pressure
    • Replies: 0
    • Forum: Plumbing Jobs | The Job-board
  15. O

    Copper Tank Restrictor

    Hi, Does anyone know what the device with a blue knob does on the return pipe from my gravity fed indirect copper cylinder. It has no electrical connections. Please e.mail any response to:- [email protected] Many Thanks Phillip Parsell
    • okanikaz
    • Thread
    • connections copper cylinder drayton google gravity indirect pipe plumbing restrictor tank valve
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board

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