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Diffusion pump paralell operation

schneyolo #3537 Hi Everyone, Does anybody experience how it is possible to operate paralell two identical dissusion pump? I need greater pumping speed. If I put them paralell and they are identical the pumping speed would be the double too? Regards Attila The Hun
Aurigema, Andrew N. (KSC-ASRC-474)[ASRC AEROSPACE CORP] #3538 开云体育 I have two 8” diff pumps ( about 1 kw each ) and they do indeed double the pumping speed.? I have a backing mechanical pump on each.? You will need that also.? It is the backing pump that is the limiting factor.? ? Note that one of my diff pumps has a slight leak in it.? I have been hunting it for years now.? At the point where the leak matches the pumps rate, I have to take that pump off-line ( isolated ) or the leak simply overpowers the other diff pump.? I suggest you keep the pumps on gate valves so you can isolate them independently.? ? Drew in sunny Florida ? toggle quoted message Show quoted text From: VacuumX@... [mailto:VacuumX@...] On Behalf Of schneyolo Sent: Wednesday, February 23, 2011 9:10 AM To: VacuumX@... Subject: [VacuumX] Diffusion pump paralell operation ? ? Hi Everyone, Does anybody experience how it is possible to operate paralell two identical dissusion pump? I need greater pumping speed. If I put them paralell and they are identical the pumping speed would be the double too? Regards Attila The Hun
Attila #3539 Andrew, Your diffussion pumps has an individual connection pipe to the chamber, or somewhere they join to one pipe which connects to the chamber. I ask this because I have no possibility to connenct them individually just through one pipe. And underneat somewhere make an Y or T to joint them. Attila The Hun toggle quoted message Show quoted text --- In VacuumX@..., "Aurigema, Andrew N. (KSC-ASRC-474)[ASRC AEROSPACE CORP]" <andrew.n.aurigema@...> wrote: I have two 8" diff pumps ( about 1 kw each ) and they do indeed double the pumping speed. I have a backing mechanical pump on each. You will need that also. It is the backing pump that is the limiting factor. Note that one of my diff pumps has a slight leak in it. I have been hunting it for years now. At the point where the leak matches the pumps rate, I have to take that pump off-line ( isolated ) or the leak simply overpowers the other diff pump. I suggest you keep the pumps on gate valves so you can isolate them independently. Drew in sunny Florida From: VacuumX@... [mailto:VacuumX@...] On Behalf Of schneyolo Sent: Wednesday, February 23, 2011 9:10 AM To: VacuumX@... Subject: [VacuumX] Diffusion pump paralell operation Hi Everyone, Does anybody experience how it is possible to operate paralell two identical dissusion pump? I need greater pumping speed. If I put them paralell and they are identical the pumping speed would be the double too? Regards Attila The Hun
Aurigema, Andrew N. (KSC-ASRC-474)[ASRC AEROSPACE CORP] #3540 开云体育 Each is hung off the chamber separately with a gate valve that isolates it from the chamber. ? This is a very useful arrangement.? ??Look under Drew in sunny Florida pictures section ? toggle quoted message Show quoted text From: VacuumX@... [mailto:VacuumX@...] On Behalf Of Attila Sent: Wednesday, February 23, 2011 2:35 PM To: VacuumX@... Subject: [VacuumX] Re: Diffusion pump paralell operation ? ? Andrew, Your diffussion pumps has an individual connection pipe to the chamber, or somewhere they join to one pipe which connects to the chamber. I ask this because I have no possibility to connenct them individually just through one pipe. And underneat somewhere make an Y or T to joint them. Attila The Hun

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