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Chromtech Website: PC to Tablet >Mobile -m5, >- m4 State of Art
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GC Columns

older FlipPAGES <2015 > simulated HTM

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[Ferrules-m4]
 

Current Level

[Ferrules]
[Graphite Ferrules-m5]

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[Chromatography Products-Main]
[some Applications]
[Whats Chromatography-m5]
[GC Accessories-m5]
[Chromatography Tubing-m5]
[Chromatography Fittings-m5]
[Ferrules-m5]
[Instrumentation Valves-m5]
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[LC Columns-m5]
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Specialists in Chromatography / Fluid Transfer Products
- Distributors in Australia - & for ALLYour Laboratory Equipment Needs!

CT-Header-Chromtech Website
Ferrules

Flip > FlipHTML5 > chromtech-aus m4 > PC responsive
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this PC > more “mobile” friendly

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How-to-Place-an-Order : CT AUD Prices : Freight Charges :Trading Terms :DisclaimerContact Us

re Important Site UPGRADES

NEW FlipHML5 Site Catalog Library flip.chromalytic.net.au PC <  > Mobile  ( & “responsive” ! > pinch&zoom)

FERRULES Chromalytic Technology  > SHOP: Ferrules

Graphite Ferrules - made in Australia
& the original “Big Deal” !

 more ABOUT FERRULES 2014+ FlipPAGE5 More about Ferrules FLIP-HTML5 Price List 2016; (PDF)  
Ferrules as used in the Chromtechs’ context . . .
Are leak-tight Pipe-fitting seals connecting Tube Fittings and various type of Tubing; SS, polymeric, glass ceramic , fused silica . . .  in capillary and larger GC Column sizes; the latter being “fragile” and will just not sustain compression by conventional metal ferrules ( “a la” Swagelok etc )

Metal ferrules normally used by “Fittings OEMs” traditionally use metal (SS/Brass)
And with their obvious limitations !
It’s not even in their pecuniary interest to even make OR re-sell Graphite Ferrules
Metal Once-off use - then you’re /they’re “buggared” !
Graphite Ferrules “slide-off” can be re-used many times
altho’ they do tend to be  “captured’ in the Nut if over-tightened
> For some GC OEMs with fore-sight ( eg Fison / Shimadzu) specify metal-jacketed/sleeve versions & in specially designed fittings > ASK !

Applications include chromatography connections where gas-tight seals are essential both in positive pressure but also under high Vacuum such as GC/MS where the material used must be high purity and sustainable at up to 450degC nowadays
Common sizes range from (1/32, 1/16, 1/8, 1/4”OD with IDs tube size
as small as 0.3mm up to 2.0”ID and larger for more exotic applications ? ASK!
          AS far as we know we are the ONLY OEM of GFs with IDs larger than 1/2”
                                                 . . . ANYWHERE !

In fact there are few OEMs who make GFS at all . Most Suppliers are in fact Distributors ONLY ( such as Agilent, Thermo, Shimadzu etc and AT MANY TIMES THE PRICE

Graphite Ferrules
see Graphite Ferrules (HTM)
   >
by FAR are the most Universally applicable type !

& where the Metal Ferrules are just NOT Good Enough !

FITTINGS OEMs DON’T necessarily like us > as GFs are reusable (with care) and easily slide off the tubing;
They are soft and malleable and deform to fit the shape of the fittings “internals” . . . and help to reduce dead-volume
They also have similar co-effs of thermal expansion as metal and will not leak under temperature cycling
There are virtually NO practical temperaure limits (but >450C as constraints impose by current Gas Chromatography practices and up to 1800C in an inert atmosphere)

Pressure Limits are at customers discretion
( Straight>> Reducing Type ) >100s psig size gas dependant
DONT USE with Hydrogen/Oxygen Air/ at High Temp >300c ?

see Also >

Graphite Ferrules Graphite Ferrules htm-button

VICI-Valco VICI-Valco acrobat-but

 VICI-AG (Jour)  > VICI-Jour htm-button

Restek acrobat-but

 NEW Biotech (Upchurch) > Biotech htm-button

Graphite Ferrules
Graphite-PolyImide Ferrules

Graphite Ferrules (Shiny Black) Subambient ->450C & > Higher

temps15% Graphite-Polyimide(Vespel Matt Black~325C long term

vespe lferrules
TeflonFerrules

100% Vespel Ferrules
 (Bown-Orange very hard) ~300C brittle at low

Teflon Ferrules ( to~ 225C ) but Note >flow transition at ~28C > CTFE even Better !

ideal for GC ! glass/Packed and fused silica Capillary Columns
but > can diffuse in air > at ultra High Vacuum eg GC/MS inlet / column outlet use ( but mainly at Only ppM levels )
Graphite can shed shards of graphire poweder as they can tend to fragement unless captured adequately in fittings a la” MS Jet Separator” problems etc !

 polyimide > various “subtle” thermal expansion effects !
& generally TOO Hard x for Glass / Ceramic tube use-age !

Hardness : 100%Vespel
> 15%Graphite/Vespel> Teflon >> Graphite ( & malleable )

FLIP-HTML5

for LC & HPLC PEEK and /or Teflon -like eg CTFE are recommended
> for far better solvent compatability & extreme pressure
see our VICI-Valco-USA and VICI-AG(Jour) (Swiss)

NEW Collapsible PEEK / CTFE(Kel-F) Ferrules for 1/16 ( and smaller)
and 1/8”OD tubing ! > & do NOT distort !
Conical ferrules ? > obsolete ? > tend to stick in flat-bottom ports / Valves and fittings

Ferrules, Graphite Ferrules - ALL Sizes 1/6"  to 2.0"ID

THIS WEBSITE(s)
R for OUR Customers ONLY
> Treat as a Technical RESOURCE

4 ALL Intents & Purpose We R Prepared to DISOWN the WEB and ALL the “Crap”??, > Adware, “Fake News”?? > even “Fake Science”??
> compounded by the ”ill-effects” of GOOGLE, Twitter, Facebook
& the likes !

Please “respect”?? ALL Copyrights,
Trademarks & Patents etc
STRICTLY THE property of the respecrtive OEM

Contact Us >

phone : 03 9762 2034 e-mail :> sales@chromtech.net.au  

 & We Try & AVOID The “Bureaucracy”
as
We tend NOT to deal with the “Big-End?? of Town” !

over the years some Catalog Products have been de-listed from catalogs; even some Suppliers are “Gone” !
- but still be available from original OEMs or from alternative Suppliers elsewhere > ASK!

Prices & Availability are always in a “state of flux”
&” largely” out of ( Our ) control !

Often at more reasonable prices ! > Cost-effective ! > Too Big ! > Out of Control > & Non-accountable !

FIND-IT ! OR for More details !

do a GOOGLE SEARCH THIS Site ! - & to cut out that other Web “crap” !

Catagories

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Flowmeter  /Leak Detector

Rxi GC Columns (Fused Silica)
MXT Columns, Packed GC

& far > MORE !

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FlipBookCase-Product Sections =1000s of PDFs

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Our Policy / Strategy

this Website - is designed / best viewed in Our “original”  > ~1300px PC screen size but limited mobile scalability ; > Android A8 recommended >
NOW many Category / sub menu pages manually rescaled into Mobile -m5  -m4 ( 400 px) format >
WOW!

both PDF & FlipHTML5 are supported - : PDFs ( if < 25p ) whilst cumbersome & slow have slightly better resolution than FASTER FlipHTML5 ( uses PDF as its’ ”core” format )

Copyrightt Copyright- Chromalytic Technology Pty Ltd 1995-2018+ : All rights reserved:  OEM Supplier : Trademarks, Patents. logos apply !

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Goole this CHROMTECH website

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Restek Important Notice !
& Until Further Notice

Supplies from Restek ?
R On Hold as of 2020

some items from Chromalytic
 are still in stock or May still be available ENQUIRE !

2020 March
> OUR Website(s) are being modified ACCORDINGLY 1

MUCH of OUR Restek Literature is being “archived”??
but still may be available for 
Technical Reference  purposes ONLY > OFF-Line

  ASK !

We reserve the right to Offer Alternative Products !