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Monovalve : Techniek

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Monovalve

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Monovalve

Berichtdoor Mark300DT » 03 jun 2013, 18:33

Ik heb even een vraag over de monovalve.

Ik zie dat als ik de valve uit de behuizing haal een balletje in het onderste deel zitten. Hoort dit ?
Het is een beetje tegenstrijdig, namelijk :

Als de kachel niet hoeft te verwarmen schakel de climat control unit naar massa, dus loopt er twaalf volt door de spoel en wordt de valve bekrachtigt.
Deze drukt de stift uit en zo het rubber in de zitting waardoor de doorstroom van heet water wordt belemmerd.

Eens ?

Nu als de kachel moet verwarmen schakelt de cc unit niet meer naar massa, de valve komt los van de zitting en warm water gaat stromen, maaaaaar daar komt het balletje wat in het onderste deel van de behuizing zit en deze wordt nu door de water druk tegen de onderkant van de doorgang aan gedrukt en belemmerd volgens mij de door stroom van heet water.

Dit verklaard waarom ik met lagere snelheden (weinig waterdruk van de waterpomp door minder toeren) wel een kachel heb en met hogere snel heden de kachel weer koud wordt.

De vraag, hoort dat balletje onder in de behuizing ? weet iemand dit ?
Kan iemand in de behuizing kijken.

Bedankt al vast.
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Re: Monovalve

Berichtdoor MB280E » 04 jun 2013, 18:17

Dag Mark

Bij mijn 560SL werkt de monovalve in combinatie met een circulatiepomp. (ook climacontrol)
Is deze pomp ook bij jouw 300DT geinstaleerd?
Anders moet u de werking van deze eens controleren.
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Re: Monovalve

Berichtdoor Mark300DT » 05 jun 2013, 09:01

if it's not broke fix it until it is
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Re: Monovalve

Berichtdoor Mark300DT » 28 sep 2016, 20:59

Even ter aanvulling op dit topic :

2x de monovalve solinode vervangen, hielp niet.
De spoel van opnieuw gewikkeld, hielp niet.
Het electronica gedeelte nagezien of de monovalve blijft regelen, dit was prima.

Ik vermoede gewoon dat bij hogere toeren +- 2500 rpm > 80 kmu door de hogere waterdruk in het systeem, wat per slot van rekening draait je waterpomp ook harder rond de valve blokkeerde.

En dat deed deze ook want met de kachel op max door trekken naar de 100 of zo bleef ik warme lucht houden maar zodra de klep 1x afviel was het over.

Na lang zoeken heb ik eindelijk opgelost,

Namelijk Ivo bellen en complete monovalve unit laten afsturen.
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Re: Monovalve

Berichtdoor MB280E » 28 sep 2016, 22:34

Er zijn gereviseerd mono valves binnenwerken verkrijgbaar in de hobbyhut ( zie W126 club)
Aftermarkets werken niet fantastisch en de circulatiepomp moet ook goed werken.
Is mijn ervaring tot zo ver. :grin:
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Re: Monovalve

Berichtdoor johnprins12 » 29 sep 2016, 19:01

Hoi,

Hoort dat balletje er wel in.
Is mij nooit opgevallen dat het er zit, zou het eens zonder proberen.
Ik heb nog een nieuwe liggen en zal eens kijken
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Re: Monovalve

Berichtdoor Mark300DT » 29 sep 2016, 22:11

Er zit in mijn oude als in mijn vervaning onderin een klepje.

Ik had ook het idee dat het daar mis ging.
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Re: Monovalve

Berichtdoor RD500sec » 29 sep 2016, 22:20

Dat balletje dient als terugslagklep, zo kan het koelwater maar in 1 richting door de kachel, het hoort er echt in.
probleem met het mono (en duo bij de andere benzen) ventiel is inderdaad de aftermarket solenoid klep.
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Re: Monovalve

Berichtdoor Mark300DT » 29 sep 2016, 23:28

Ik heb totaal 3 solinodes geprobeerd alle met het zelfde resultaat.
En inderdaad de aftermarket was het slechts.

Maar een gebruikte originele werkte ook niet goed, van alles geprobeerd. Afsluit rubber overgezet etc.

De vervangende unit lijkt wel fanatieker te zijn.
Ondanks ik van de oude al een keer te spoel opnieuw had gewikkeld.

Maar goed de climate control doet het weer.

Nu nog een aantal andere technische zaken dan zal ik daarna eens aan de airco beginnen.
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