Loxone manifold actuators. Won't stay in place. Replacments ??

[Keith Emerson]

I have a problem with one (if not two) of the original 24V loxone manifold actuators. They will not securely clip into place and will "pop off" when they  are required to shut off the flow. 

They are marked 424405-00(Mohlenhoff  ? 24V 10 V signal 4mm stroke, 100N NC).

Loxone only appear to sell air or tree actuators. I would like to use an equivalent of the original valve. Can anyone help with getting hold of thes ?

Thanks, Keith

[Jonathan Dixon]

Salus make a 24V NC actuator - https://saluscontrols.com/gb/product/t30nc24-electro-thermal-actuator-24v/

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[Jonathan Dixon]

Ah apologies, yes are those older design analogue 0-10V modulating? Plus 24V as the supply.

If you don't have Tree available there, then the new Air actuators are you easiest option. (In fact I'd probably say they're preferable to the Tree ones purely because the punch down connections are so flaky)

On Fri, 5 Jun 2026, 17:44 Keith Emerson, <emer...@gmail.com> wrote:

Thanks Jonathan, I'll have a look at that. I believe that my valves are proportional and I'm looking for a direct replacement if possible and with similar wiring. 

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From: Jonathan Dixon <jo...@lifelogic.uk>
Sent: 05 June 2026 12:31
To: Keith Emerson <emer...@gmail.com>
Cc: Loxone English <loxone-...@googlegroups.com>
Subject: Re: Loxone manifold actuators. Won't stay in place. Replacments ??

 

[Keith Emerson]

Ended up 3D printing a clamping frame which keeps the actuator in place. The original prototype is working and I have an improved 4 claw version