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Compatible replacement actuator : myson mpe322

Discussion in 'Plumbing and Central Heating' started by shmelv, 6 Jan 2012.

  1. shmelv

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    Does anybody have an idea which if any actuators are a direct replacement compatible with this myson mpe322 3 port actuator ( also called act322 I bleieve)

    Is there a sunvic actuator that fits or another .
    Cheers
     
  2. 45yearsagasman

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    As far as I know the Potterton / Myson are the only heads compatible with that body. They are not the best and you can buy the complete valve and head for £36. I would change the whole valve and fit a Honeywell.
     
  3. Agile

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    I agree.

    For a customer I would change the head as thats cheaper than having to drain and change the whole valve.

    But for myself if I had the time then I would fit a Honeywell valve.

    The motor only can be changed on the Honeywell ones but on the Myson its difficult and usually the plastic bits have failed anyway.

    Tony
     
  4. Cpplumber

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    Another one to add to the Honeywell suggestion!

    Easy to obtain new motors and heads if ever required.

    Carl
     
  5. Boilerman2

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    I did manage to fit a Danfoss actuator to one of these valves once - BUT it was a lot of work including the need to drill new mounting holes in the valve face plate - not something i would recommend

    when getting a quote for a new head ask for the price of a complete valve/head assy as for some stupid reason they are often cheaper when bought as a complete head/valve - you can simply take the new valve off and just use the head on your existing valve body ;)
     
  6. muggles

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    Why do you want to have a different actuator? Why not simply buy another ACT322? I had to replace an ACT222 this week and my local Parts Centre had two in stock.
     

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