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Restek Ferrules

General Considerations in the ferrule selection:

· Injector temperature

· Type ond sensitivity of the detector

· Type of material that provides a perfect seal to avoid leaks (Graphite Ferrules, Vespel Ferrules, Graphite/Vespel Ferrules)

· Column OD and type

 

 

Specifications
Downloads

Graphite

Graphite is the best material to work at high temperature and at the same time is the softest ferrule. Therefore it fits the capillary column and seals effectively at only ¼ turn past fingertight. As this is a very soft material, thery are easily destroyed or deformed. Ideal for FID and NPD detectors. Do not use with MS or other oxygen sensitive detectors. 
Upper temperature limit 450ºC.

Vespel/Graphite

Vespel /Graphite ferrules are recommended for applications with GC/MS interface or other oxygen sensitive detectors. 
The ferrule composition is 60% polymide and 40% graphite. It is a ferrule for general use in Gas Chromatography. 
It is mechanically robust and forms a perfect seal. It is a reusable ferrule. It needs a frequent retightening. Limit temperature 400ºC
85% Polymide (vespel) 15% graphite for Agilent ferrules.

Vespel

The composition of the Vespel ferrule is 100% polyimide. 
It is mechanically robust. It can be removed and reused several times. It is an ideal material for glass and metal columns. 
It needs a frequent retightening. Limit temperature 350ºC.

 

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showing 20 of 109 products
Type
Agilent (20)
Gerstel (3)
Reducing (20)
Shimadzu (4)
Standard (54)
Thermo (8)
Material
Aluminium (3)
Graphite (41)
PTFE (7)
Vespel (10)
Vespel/Graphite 60%/40% (27)
Vespel/Graphite 85%/15% (21)
OD
1/16'' (61)
1/4'' (15)
1/8'' (16)
3/16'' (1)
Ferrule ID
0,25 mm (1)
0,3 mm (4)
0,32 mm (1)
0,4 mm (21)
0,5 mm (22)
0,53 mm (1)
0,6 mm (2)
0,8 mm (23)
1,0 mm (4)
1,2 mm (1)
1,6 mm (2)
1/16'' (11)
1/4'' (5)
1/8'' (8)
3/16'' (2)
5 mm (1)
Reference RS-20200
Description 1/16"x0.4mm ID Pack of 10 fits  0.25/0.28mm Ferrule, Graphite
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Reference RS-20201
Description 1/16" X 0.5mm ID Pack of 10 Ferrule, Graphite
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Reference RS-20202
Description 1/16" X 0.8mm ID Pack of 10 Ferrule, Graphite
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Reference RS-20203
Description Reducing, 1/4" to 0.4/0.5mm Pa ck of 5 Ferrule, Graphite
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Reference RS-20204
Description Reducing, 1/4" to 0.8mm Pack o f 5 Ferrule, Graphite
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Reference RS-20205
Description Reducing, 1/8" to 0.4/0.5mm pk/5 Ferrule, Graphite
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Reference RS-20206
Description Reducing, 1/8" to 0.8mm Pack o f 5 Ferrule, Graphite
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Reference RS-20207
Description 1/16" Pack of 10 Ferrule, Graphite
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Reference RS-20208
Description 1/8" Pack of 10 Ferrule, Graphite
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Reference RS-20209
Description Reducing, 1/8" to 1/16" Pack o f 10 Ferrule, Graphite
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Reference RS-20210
Description 1/4" Pack of 10 Ferrule, Graphite
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Reference RS-20211
Description 1/16" X 0.4mm ID Pack of 10 Ferrule, Vespel/Graphite
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Reference RS-20212
Description 1/16" X 0.5mm ID Pack of 10 Ferrule, Vespel/Graphite
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Reference RS-20213
Description 1/16" X 0.8mm ID Pack of 10 Ferrule, Vespel/Graphite
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Reference RS-20215
Description Reducing, 1/8" to 0.8mm Pack o f 5 Ferrule, Vespel/Graphite
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Reference RS-20217
Description Reducing, 1/4" to 0.8mm Pack o f 5 Ferrule, Vespel/Graphite
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Reference RS-20218
Description 1/16" Pack of 10 Ferrule, Vespel/Graphite
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Reference RS-20219
Description 1/8" Pack of 10 Ferrule, Vespel/Graphite
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Reference RS-20220
Description Reducing, 1/8" to 1/16" Pack o f 10 Ferrule, Vespel/Graphite
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Reference RS-20221
Description 1/4" Pack of 10 Ferrule, Vespel/Graphite
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showing 20 of 109 products