Scientific Instrument Services, Inc. Supplies and Services for Mass Spectrometers, Gas Chromatographs, and Liquid Chromatographs.

Jet Separator Ferrules

Glass Filled PTFE Ferrules - 250 °C

  • Constructed of Glass Filled PTFE®
  • For vacuum sealing glass columns and jets to fittings
  • Maintains PTFE's sealing properties, but with less flow at high temperature
  • Does not flake like graphite and clog jets
  • Maximum usable temperature is 250 °C
  • Recommended for glass GC columns and jet separators
  • Two styles available: Type GTF requires a back ferrule, type OTF does not.
  • For 1/4 inch O.D. Glass columns and jets

GTF   OTF

These ferrules are constructed from glass filled PTFE, giving the ferrules the sealing properties of PTFE but minimizing the flow problems normally encountered with pure PTFE. All ferrules fit the standard Swagelok, Parker, SGE and other GC fittings. Glass filled PTFE ferrules are ideal for use on mass spectrometer jet separators, glass and metal GC columns and for glass and fused silica capillary columns.

Glass Filled PTFE Ferrules, ID=1/4 in, UOM=PK
Part No. Description est
wt.		 Quantity
In Stock		 Price Quantity
to order
GTF410 (Needs Back Ferrule), pkg of 10 0.25 0(#)------
OTF410 (Does Not Need Back Ferrule), pkg of 10 0.25 52$14.00(*A)
(*_) Marked parts have bulk quantity discount pricing:
Discount code 'A' -- 10 or more: 5% off; 50 or more: 10% off.
(#) Standard lead-time for out-of-stock items is approximately two weeks.
shopping cart Ordering information. International (non-US) prices available through your local dealer.

Graphitized Vespel Ferrules - 350 °C

072667

These Vespel ferrules contain 15% graphite.

Because these ferrules are harder, they do not distort and flow as much as other types and are ideal for butt type connections where the flowpath might be interrupted. Greater care must be used when installing these ferrules due to their greater hardness to minimize glass jet breakage. However, these ferrules are usable up to 350 degres C. Available in package of 10.

Part No. Description HP #UOM est
wt.		 Quantity
In Stock		 Price Quantity
to order
072667 1/4 in Graphitized/Vespel Ferrules (Needs Back Ferrule), pkg of 100100-1500PK 0.25 7$42.50
shopping cart Ordering information. International (non-US) prices available through your local dealer.

Vespel Ferrules - 350 °C

072680

These are natural or unfilled Vespel ferrules and are a harder material than our graphitized vespel ferrules. Therefore, extreme care must be used when using these ferrules. Vespel ferrules are not normally recommended for jet separators.

Note - Both types of Vespel ferrules form reliable seals, however, with extreme temperature cycling from 300 °C the ferrules may leak due to the natural hysteresis of Vespel. Available in package of 10.
Part No. Description UOM est
wt.		 Quantity
In Stock		 Price Quantity
to order
072680 Vespel 1/4 in Ferrules (Does Not Need Back Ferrule), pkg of 10PK 0.2 0(#)------
(#) Standard lead-time for out-of-stock items is approximately two weeks.
shopping cart Ordering information. International (non-US) prices available through your local dealer.

Graphite - Ferrules - 450 °C

072601

Graphite ferrules are 99.95% pure graphite and are extremely easy to use, for obtaining reliable leak free connections. Because graphite does not stick or bind onto the tubing, graphite may be removed and reused. Graphite ferrules are used by many mass spec users on their jet separators due to their ease of removal. However, vacuum seals may not be as efficient as other types of ferrules. Available in package of 10.
UOM=PK
Part No. Description est
wt.		 Quantity
In Stock		 Price Quantity
to order
072601 1/4 in Graphite Ferrules (Needs Back Ferrule) pkg of 10 0.25 0(#)$27.00
072621 1/4 in Graphite Ferrules (Does Not Need Back Ferrule) pkg of 10 0.25 0(#)$27.00
(#) Standard lead-time for out-of-stock items is approximately two weeks.
shopping cart Ordering information. International (non-US) prices available through your local dealer.
Return to Glass Jet Separators
SIS Catalog Cross Reference
Page #Part Numbers
D44 - GC Ferrules & Sealing Rings GTF410, OTF410
D45 - GC Ferrules & Sealing Rings 072621
D46 - GC Ferrules & Sealing Rings 072667
D47 - SGE Ferrules for Agilent Gas Chromatographs 072601, 072667
D48 - SGE Ferrules for Thermo† & Varian G.C. 072621, 072667
D49 - SGE Ferrules for Perkin Elmer and Shimadzu GC 072621, 072667
D50 - SGE GC Ferrules - Instrument Cross Reference 072601, 072621, 072667
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