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The Motorised Submersible Canoe (MSC), nicknamed Sleeping Beauty, was built by the British Special Operations Executive (SOE) during World War II as an underwater vehicle for a single frogman to perform clandestine reconnaissance or attacks against enemy vessels.

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  1. M

    Motorised valves from China

    I have tried hard to get similar to the first class satchwqell /Sunvic SML type revolving type valves instead of the quite short lived spring return type valves. I saw an advert from the Hearken company who either make these or buy them in. The only problem they are BSP threads so adaptors are...
  2. R

    Can motorised valves go under floorboards (legally)?

    Hi guys and gals, I'm looking to try to change from a Y-plan to an S-plan-plus this year to have a heated bathroom. While the house isn't that large, a mixture of south-facing brick and north-facing (and Jerry-built) timber frame construction means no single thermostat will cut the muster...
  3. E

    How long do honeywell two port motorised valves last?

    Ours are lasting between a year and two years and then I have to replace. Is this normal or should I be investigating our central heating system to find out why? Which motorised valves do you recommend I use?
    • Ed_R
    • Thread
    • america honeywell motorised motorised valves usa valves
    • Replies: 11
    • Forum: USA
  4. K

    Motorised Valves which ones !!!!!

    Hi Im Ian and new to this forum, ive been in the trade for 33 years and worked for myself for 22, I maintain and service mainly, I fit quite a lot of motorised valves and religiously always fitted Honeywell, then I started getting issues with them and the price was shooting up, I tried Tower...
    • Kingston Gas
    • Thread
    • always fitted honeywell house motorised motorised valves valves which years
    • Replies: 21
    • Forum: Plumbing Jobs | The Job-board
  5. AMW

    Motorised Valves

    Was on Ray's website and looking for the above and they have Tower motorised valves they look just like honeywell valves, wanting to know are basically honeywell valves branded differently or just made to look the same as there is a fair price difference. Anyone know?
  6. C

    Valiant 831 Boiler - Wiring of thermostats and motorised valves?!

    Sorry in advance for the long thread! Just want to make sure i provided as much detail as possible. We are currently building an extension and whilst devastating the house have decided to install a new boiler, we have also opted for a John Guest UFH system to be installed in the new...
    • Chrismw1989
    • Thread
    • boiler central heating system currently motorised motorised valves oil someone thermostat thermostats valiant valves wiring
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  7. eagleeye

    motorised valves

    can anyone tell me what the flow rate difference is between a 22mm and 28mm 2 port honeywell zone valve
  8. M

    sunvic motorised valves

    Hey chaps, I am in need of some help. I have the above motorised valves on a system and cannot figure out or find out any where what the wires are. It has yellow, white, orange and blue and green and yellow. No grey on it. So which will need to be wired into the live in the wiring centre? Also...
  9. C

    Connecting motorised valves of different types, one powered off, one auto off

    I have a conventional CH/Hot water system with motorised valves that are both power to open power to shut types. We had a loft conversion done some years ago and the upstairs radiators had a hot feed tee'ed into to the system at the pump. This feed was controlled by a third valve which is...
    • ColinJL
    • Thread
    • connecting different downstairs motorised motorised valves power system types upstairs valve valves
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  10. K

    Range tribune motorised valves.

    Been to look at a job where property has intermittent fault with the heating two port valve Everything works ok but every so often the valve starts knocking its bollox off. Sounds like a woodpecker on speed. Anyone come across this before? Is it a change the head or the whole valve kinda...
  11. P

    UFH Motorised Valves?

    Hi all - I have a UFH system in a fairly new house, problem is downstairs (zone 1 is fine) upstairs (zone 2) is cold - not getting up to temp, had a nose at the controls, pump etc and all seems to be ok except the honeywell motorised valve (HMV), when I move the pin to Manual the upstairs warms...
  12. C

    motorised valves prices?

    what makes 2/3 ports are people using, i have always been a honeywell man, but after the prices of a 3 port have gone up again i was whinging in parts center and they told me that the center brand 3 ports are made by honeywell and are european spec without a removeable head. fitted one yesterday...
  13. R

    honeywell motorised valves

    Hi - when the above valves close and open automatically ie by the motor - does the external lever move Many Thanks
  14. B

    Motorised Valves

    In the house I have bought there are 2 Tower Motorised Valves, one to regulate the downstairs temperature and one to regulate upstairs. The one for downstairs is placed outside in the boiler house and was soaked with the leak I had and isn't working, therefore leaving us with no heating...
  15. J

    Motorised valves dissapered

    Rippin out a system boiler today to fit a combi been all over the housr no motorised valves ? Help please
  16. N

    HW only when CH also on - motorised valves installed incorrectly?

    Following on from my previous thread http://www.ukplumbersforums.co.uk/central-heating-forum/15251-hw-only-works-when-ch-other-problems.html I've had a registered engineer come round, who queried the position of the 2 motorised valves. (see my sketch below) (Electrician had written A = heating...
    • nervous123
    • Thread
    • engineer heating installed motorised motorised valves pipework programmer valve valves
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
  17. P

    Myson Apollo 50Si Hi Stat

    Folks, would be grateful for any information on my Apollo 50Si. This boiler was installed when the house was built 20 years ago so already has had a good innings, but I'd like to keep it soldiering on for while yet. The system is a conventional open vented F & E installation in microbore with...
    • Pilotjet
    • Thread
    • apollo bleeding boiler cold cylinder dhw flow flush high hot hot water hot water cylinder identify installation kettling motorised valves myson open vented pan pipe problem pump replacement system temperature valves water
    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  18. W

    Pump Pulling air

    My heating system was installed in 1981 when the bungalow was built. It consists of a wall mounted Ideal Concord WCF 255A boiler with the flow and return (28mm) going up into the loft where the pump and 3 motorised valves are fitted (I think it was called an S plan plus). This allows separate...
    • Whitcop
    • Thread
    • 22mm 28mm air blank bleeding boiler bungalow central heating system cold cold water expansion flow loft motorised valves noisy pipe pump system tank timer valves vent wall water
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  19. J

    Pipe sizing on CH/Hot water system

    My new house has 25 x 2.5mm Uponor MLC flow and return pipes from/to the boiler. In the loft the pipework feeds the sealed system comprising cylinder coil, upstairs radiators and downstairs underfloor heating through separate 20 x 2.25mm MLC pipes. The radiators and coil are served by an...
    • Johnny B
    • Thread
    • boiler central heating system circulation condensing copper cylinder hot hot water hot water system loft motorised valves pipe pipes pipework plumber pump radiators sealed sizing system underfloor underfloor heating valves water wide
    • Replies: 8
    • Forum: Plumbing Jobs | The Job-board
  20. E

    faulty pipie stat?

    got a pipe stat that clicks on once frost stat signals but does not switch off? any one got any ideas. i think it is def wired up wrong as connected to white wire (from 3p.v) in junction
    • everflow09
    • Thread
    • boiler central heating system faulty motorised valves pipe switch temp test valves
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
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