Hi all,
I have a JEOL SEM JSM T20, which is more than 50 years old electron microscope.
I tried hours to search for information on the flange it has with 50 mm outer diameter and with 2 holes.
I need to get an adapter between this flange and my turbovac 50 with DN 63 ISO-K flange.
Anyone have any idea about this flange and what is it called? And where to get a fitting flange?
Or is there another solutions out there, like welding?
Thanks in advance!
Cheers,
Don
Old flange
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- Posts: 91
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- Real name: Luca Aldridge
- Location: United Kingdom
Re: Old flange
Does that inner circle have a knife edge, or is it parallel to the ring on which the holes are drilled into?
Luca Aldridge
Re: Old flange
Hi,
No sharp edges. So no cf style i guess...
Don
No sharp edges. So no cf style i guess...
Don
- Dennis P Brown
- Posts: 3189
- Joined: Sun May 20, 2012 10:46 am
- Real name: Dennis Brown
Re: Old flange
That is a real challenge - might be a bridge too far to find a proper current commercial adapter plate. I'd simply buy a proper size standard flange (with an o-ring on the side towards your 'opening), and do any hole drilling required so it can be connected to that port. Then the other side would be a standard knife edge or KF so that would mate to your more normal vacuum components. Just a thought.
Re: Old flange
Thanks Dennis!
What do you think of the idea of TIG welding a KF flange to it?
What do you think of the idea of TIG welding a KF flange to it?
- Dennis P Brown
- Posts: 3189
- Joined: Sun May 20, 2012 10:46 am
- Real name: Dennis Brown
Re: Old flange
If you have the ability, why not? I machine my own adapters (O-rings, bolt holes w/threads, clearance holes.)