Antigua
Hazard to Others
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Posts: 155
Registered: 27-9-2020
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Interesting Alcatel diaphragm pump
Hi,
I acquired a pump that seems to go by many different names.
It has a sticker with "Thermo Electron Corporation, Pump type: ARL MP1-V3, a nameplate with Alcatel's logo and the name "Diaphragm pump AMD1" and this
site claims it has something to do with Pfeiffer: https://www.ajvs.com/new/product_info.php?products_id=22737
So a pump claimed by 3 different manufacturers! Business is complicated for an oridinary chemist ![:)](./images/smilies/smile.gif)
Anyways, my question is whether someone knows the purpose of the silicon cover on the exhaust port? Is it a silencer? That confuses me because the
pump has another, copper frit pneumatic silencer on it. The pump makes a weird noise when the silicon cover is moved and even though it has a flat
screwhead it's impossible to unscrew it. I was only able to find a small manufacturer's pamphlet of the pump. Here is the video of the pump working
and the silicon cover: https://streamable.com/gpqg26
![](https://i.ibb.co/m5PsNPJ/Webp-net-resizeimage-2.jpg)
![](https://i.ibb.co/3myM717/Webp-net-resizeimage-4.jpg)
![](https://i.ibb.co/XXxRb40/Webp-net-resizeimage-3.jpg)
[Edited on 18-3-2022 by Antigua]
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Bonee
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Registered: 20-12-2010
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I think the previous owner used it as 2 separate vacuum pumps, or stripped the piping, if you check the first link (or the picture on your pump) you
have posted the two sides must be connected in series.
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