Special Shapes & Sizes
To Order and to YOUR Specs

• NOT only for GC but ANY. . .

• glass tube and ceramic catalyst/reactor tube

• high temperature applications

• > 500C if encased and in an inert atmosphere

Large Diameter Graphite Ferrules / Rings

-  "Swageloks"
Conical Ferrules
1" ID to 2" OD or larger . . .
NOW Stock Items
-  Pump Gland Packing Rings-
-  Cylindrical Ferrules

• In fact Any Size from 2mm OD up to 2.00-in OD
• Use Cat.# GR / OD / ID / Length
  (mm or in

NOTE - a tooling cost may apply for small quantities of "specials or non-stock sizes)

1.00-in ID
1-1/4-in ID
1-1/2-in ID
2.00-in ID

SF1600G
SF2000G
SF2400G
SF3200G

Graphite Rings / Cylinders
Cat.# GR / OD / ID / Length

Hole ID / Column OD

1/8-in Port

1/4-in Port

5mm Port

Design Features

0.3mm ID
0.4mm ID
0.5mm ID
0.8mm ID
1.0mm ID

GCFA200/0.3
GCFA200/0.4
GCFA200/0.5
GC2A200/0.8
GCFA200/1.0

GCFA400/0.3
GCFA400/0.4
GCFA400/0.5
GCFA400/0.8
GCFA400/1.0

GCFAM5/0.3
GCFAM5/0.4
GCFAM5/0.5
GCFAM5/0.8
GCFAM5/1.0

designed to minimise extrusion of graphite normally assciated with reducing ferrules in standard "Swagelok" fittings

ALL other components are made of stainless steel

fitting is OK for use up to 450-degC

a minimum clearance between the SS components and the column reduces risk of scratching the silica column in use.

Spare Parts

Nut

GCFN

Capture Cup

Graphite
Ferrule

GCFF0.3
GCFF0.4
GCFF0.5
GCFF0.8
GCFF1.0

GCC0.8
GCC0.8
GCC0.8
GCC0.8
GCC1.2

Port Adaptor

GCF-PA

Specifications : Length 15mm standard - others to order
contains a Silcosteel insert ( 0.8mmID or 1.0mm ID respec ) to minimise dead volume and to centre the fused silica column . . . into a FID jet for example
- Use a standard Swagelok 1/8 or 1/4-in Nut and ferrule (not supplied) or for example a Shimadzu 5mm nut and ferrule

Special OEM GC

ID 0.3, 0.4, 0.5 , 0.8, 1.0, 1.2mm
GF O-Ring for Injector Liners 6.35 and 6.5mmID

Hewlett-Packard / Agilent

HP 5890/6890  Column Seal

HP5890/6890
 Liner Seal

Standard
Graphite Column Seal
GF100/1.2HPGF100/1.0HPGF100/0.8HP
GF100/0.5HP
GF100/0.4HP
GF100/0.3HP
Use with HP replacement SS Capillary Nut cat.# 20883

Short
Graphite Column Seal
GF1.2HP
GF1.0HP
GF0.8HP
GF0.5HP
GF0.4HP
GF0.3HP
Use with HP replacement SS Capillary Nut cat.# 21884

Inlet Liner / Sleeve

Split Injection Sleeves
GFO6.35-HP

Spltless Injection Sleeves
GFO6.55-HP

Standard Sizes ( to fit Swagelok, Parker Hannifan Fittings etc ( "100"=1/16" )

• to 2.0-in tube diameter

ALL Standard Sizes
- to fit Swagelok,
Parker Hannifan fittings

CUSTOM Sizes - to Order
including Double Cone designs

Chromatography Applications

GC Column Connections
Packed GC Columns

• for 1/16, 1/8, 3/16, 1/4

• Stainless Steel / or Glass

Capillary Columns

Column connectors ( with low hold-up fittngs recommended )

Injector / Detector Port Adaptors

• 1/16  hole sizes 0.3, 0.4, 0.5, 0.8, 1.0, 1.2mm and 1/16"ID

• 1/8" - hole sizes 0.4, 0.5, 0.8, 1.0mm, 1/16" and 1/8"ID

• 1/4" - hole sizes 0.5, 0.8, 1.0, 1/16", 1/8", 3/16", 6mm,

• Double-hole 1/16 x 0.5mm; 1/8 x 0.8mm

Simplify Tube Connections

Use with Standard Tube Fittings
You don't need to cut off
the ferrule in order to
re-use the tubing
Simply Slide it Off

the Graphite Ferrule
simply stays inside the nut

Graphite Ferrule sizes"

SF-Type Straight", Reducing
No-hole(blanks),
Double-hole
One-Piece as well as
Front Ferrule GF-Types

Industrial Applications

for Tube Sizes with OD
1/16", 1/8", 3/16", 1/4", 3/8", 1/2"
5/8", 3/4", 1.0", 1-1/8", 1-1/4":, 1-1/2", 1-3/4", 2.0"
SFX00G where X=1/16"

• The Graphite Ferrule OD and Length is adjusted to fit standard Swagelok
  ( "industry standard" ) Nuts & Fittings

• The Cone matches the Swagelok Cone

• SF-Type - Straight Single-piece conical ferrule design

• lower cost than Metal  / stainless steel ferrules

• Re-Usable

• Ideal for "prototyping" applications

• self-lubricating

• Will NOT stick or "gall" like stainless steel

• Will NOT distort the tubing

Metric Fitting Sizes
SFM5G 5mm OD Swagelok
SFM10G 10mm OD
Other Sizes please enquire

Ceramic Catalyst / Reactor Tubes . . . Fuel Cell Technology / Petrochem applications

Fisons 8000 Mega Series ( Finnigan Now Thermo)
( same as TRACE Now ThermoQuest )

GF Cup Seal 0.3, 0.4, 0.5, 0.8, 1.0mm ID
GF Capture Ring Seal ( 8mmID for Injector Liners )

Capture Graphite Seal
 for Capillary Column System

Capture Graphite Seal
 for 8mm Diameter Inlet Sleeve

CF1.0-FIS
CF0.8-FIS
CF0.5-FIS
CF0.4-FIS
CF0.3-FIS

CFM8-FIS

Port Reducing Fitting
NEW  Graphite Capture Ferrule Fitting

for better sealing under vacuum
GC/MS conditions
 - similar to "capture" seal used in Fisons/CE8000 GC/MS

3 Universal port sizes : 1/8, 1/4-in and 5mm ID
5 ferrule ID sizes : 0.3, 0.4, 0.5, 0.8, 1.0mm ID

Advantages of Graphite Ferrules       

• High Temperature use - 450C or higher in a capture oxygen free environment.
• Do not flow during temperature cycling (like Teflon) - OK even for subambient temperatures without becoming brittle.
• Do not "soften" or dry out at high temperatures like Vespel - no tendency to "crack" or stick to glass
  or metal.
• With care GFs are re-useable.
• In fact . . . The perfect sealing material for any GC application
• Use for standard pipe fittings - Cost saving benefits for prototyping systems as the ferrule will slide off the tubing and doesn't have to be cut off like metal ferrules.

Disadvantages
        For GC/MS operation - particularly for vacuum operation at column outlet.     

• GFs have a laminar structure as they are made from highly compressed graphite tape
   - consequently under vacuum operation they can tend to diffuse air into the GC/MS system, when used in a standard Swagelok-type fitting.
  - often of no consequence even in GC?MS unless scanning at amu <45
• Under normal GC use the miniscule amounts of "leaked" air are generally of no consequence
• This limitation is more a function of inappropriate fitting design - the tendency is to use standard type Swagelok fittings as a "universal" connector and then reducing ferrules for connecting capillary columns into the system
   - however for this application these are often inadequate as there is no physical support for the GF in the oversize hole
   - the GF can tend to fragment.
  A capture-type fitting is preferred for this type of application and this largely eliminates the problem !
• For MS jet seperators in particular this GF fragmentation can lead to "disastrous blocked jets.

REDUCING Ferrules

• These must NOT be overtightened in any Detector Port application as the graphite will tend to extrude and possibly fragment into the empty hole
• Ideally a 1/16", 1/8" or 1/4" "reducing Port Adaptor fitting is recommended to minimise any graphite fragmentation ( which can in turn block an FID jet for example . .; .
• DRU-XM where X is Port fitting M is the hole size in adaptor ( 1mm, 0.75mm or 0.5mm as appropriate ) OR Make-up Gas Reducer Fitting DRT-XM

Graphite/Vespel ferrules are preferred for GC/MS application.
YES ! We make these as well !

Typical Prices
        Standard GFs ( up to to 1/4") Price Aud $25.00 per 10pk ) USD20.00 ( and 20% off for 100-pk )
        For Other Prices . . . Please Enquire !
Attractive Discounts apply to Distributors & OEMs

Other Graphite Products
Furnace Tubes for AA
Made to your specs . . . Please Enquire !

Chromalytic Technology Products
Graphite Ferrules
for Parker/Swagelok Fittings also Custom Sizes to Order

NEW Ferrules ( > *.pdf page) More About Ferrules
GC Specific Ferrules  : GF Sizes ; Custom Spec Sheet

The World's Largest Supplier of Graphite Ferrules
to the Chromatography Market - End User / Distributors / OEMs
Made in Australia by Chromalytic Technology
All Sizes, Shapes and Hole Sizes . . . even Double-hole versions.
Custom sizes . . . made to your specifications

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