02-12-03 14:05
No 407172
what type of connectors are these? i keep seeing them on vacuum pumps at auctions, but have no idea what you would connect to them. someone thought triclover, but said he was only guessing.
and are there any adapters to standard 1/4" hose barbs?
thanks in advance.
Now with 12% more Bottom!
Nymphomania is not a disease, its a goal! (Methadist)
(Hive Bee)
02-12-03 14:08
No 407173
NW connectors like NW16, NW25, etc. Yes there are adapters PM me if you can't find where to get them. They are mostly used on high vacuum pumps, usually on anything less than .01 torr pumps.
The working man is a sucker
(Hive Addict)
02-12-03 14:21
No 407177
three minute turnaround. wik TBG. thx.
Now with 12% more Bottom!
Nymphomania is not a disease, its a goal! (Methadist)
(Hive Bee)
02-12-03 14:24
No 407179
wik?
The working man is a sucker
(Hive Addict)
02-12-03 14:25
No 407181
wicked mon, wicked.
Now with 12% more Bottom!
Nymphomania is not a disease, its a goal! (Methadist)
(Hive Addict)
02-12-03 15:54
No 407204
You're an East Coaster I'm guessing?
(Hive Bee)
02-12-03 16:35
No 407226
but i never heard wicked abbreviated to wik. Anyways, another thing about NW connectors. It is most common to have NW to maybe 1/2" rubber tubing minimum, I haven't seen smaller. But you could use one of those <---> adapters that have 1/2" barbs on one side and 1/4" barbs on the other.
The working man is a sucker
(Hive Addict)
02-13-03 00:06
No 407323
not east coast... just old. wicked was a saying from high school... probably from fast times at ridgemont high or something stupid like that.
these NW ports are massive. the port on the pump i was looking at was about 1.5" inner diam. overkill maybe, but it was a leybold heraeus trivac. if i could find an adapter to a 1/2" or even a 3/4" ID hose, that would be perfect.
Now with 12% more Bottom!
Nymphomania is not a disease, its a goal! (Methadist)
(Chief Bee)
02-13-03 00:18
No 407328
these NW ports are massive.
You need that massive connectors to achieve full vacuum with those machines. There is no problem reaching ~0.1 mmHg with standard tubing though, as long as it doesn't collapse.
(Hive Addict)
02-13-03 02:57
No 407357
Looks like KF to me.
Download the fittingscatalog from www.precisionplus.com:
http://www.precisionplus.com/ECatalog/P+
The name is KF. And yes there are adapters available, I had the same fittings on my Leybold pump. Precisionplus says theirs are low-cost. I donīt want to know what these parts cost if "not-low-cost" purchased. If you know somebody with equipment for metalworks you will get it cheaper from him and have to buy "only" the seals. Take the VITON seals.
I donīt regard this as source - if the moderation doesnīt agree i will edit my post.
ORG
(I'm Yust a Typo)
02-13-03 12:49
No 407481
Pumps like that sometimes 'suffer' from the problem that they'll get a too good vacuum. Those last drops of low-boiling solvent can really make a mess of your distilation setup.
If you get a really good pump (say, one that can do 0.01 mm Hg), you'll also get the 'problem' that your freebase will come over at ~ 60 degrees C, and ketone coming over at 55 degrees. I.e. lousy separation.
(Hive Addict)
02-13-03 14:10
No 407498
if you're that lucky to own a pump that can pull ketone at 55°C, then you're probably smart enough to install a bleed valve to lower the final vacuum, and install a vacuum gauge to monitor the vacuum on demand.
Now with 12% more Bottom!
Nymphomania is not a disease, its a goal! (Methadist)