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RESTEK Advantage 2003 Volume 2
Note: All seals include washers.
Note: The 1.2mm inlet seal is recommended for use with Vespel® /graphite ferrules or when installing two columns using a two-hole ferrule. The 0.8mm inlet seal
is recommended for use with graphite ferrules and single capillary column installation.
Vespel® Ring Inlet Seals with Washers for Agilent 5890/6890/6850 GCs
Vespel® Ring Inlet Seals are
available in three finishes: gold-plated,
Silcosteel®-treated, or stainless steel.
0.8mm ID Vespel® Ring Inlet Seal 2-pk. 10-pk.
Gold-Plated 21562 21563
Silcosteel® 21564 21565
Stainless Steel 21560 21561
1.2mm ID Vespel® Ring Inlet Seal 2-pk. 10-pk.
Gold-Plated 21568 21569
Silcosteel® 21570 21571
Stainless Steel 21566 21567
Replacement Inlet Seal Washers
Description Similar to Agilent part # qty. cat.#
Replacement Inlet Seal Washers 5061-5869 15-pk. 21710
Replacement Inlet Seals for Agilent GCs
• Special grade of stainless steel that is softer and deforms more easily, ensuring a leak-free seal.
• Increases column lifetime because oxygen cannot permeate into the carrier gas.
• Reduced noise benefits high-sensitivity detectors (e.g., ECDs, MSDs).
• Silcosteel® seal offers the inertness of glass.
• All seals include washers.
*0.8mm ID stainless steel inlet seal is equivalent to Agilent part #18740-20880, 0.8mm ID gold-plated inlet seal is equivalent to Agilent part #18740-20885.
Single-Column Installation,
0.8mm Opening*
0.25/0.32mm ID Dual-Column Installation,
1.2mm Opening
0.53mm ID Dual-Column Installation,
1 /16-inch Opening
2-pk. 10-pk. 2-pk. 10-pk. 2-pk. 10-pk.
Stainless Steel Inlet Seal
21315 21316 20390 20391 20392 20393
Gold-Plated Inlet Seal
21317 21318 21305 21306 — —
Silcosteel® Inlet Seal
21319 21320 21307 21308 — —
Restek inlet seals feature a
super-smooth surface
for better chromatography!
• Low torque, soft seal, reduces wear, prevents damage at critical seal: no unexpected downtime
• Leak-tight connections, for greater sensitivity (less detector noise) and longer column life (no phase oxidation)
Vespel® Ring Inlet Seals
Lit. Cat. # 59523
2003 Restek Corp.
Please direct your comments on this publication to Brett Tyson, Graphic Designer, at or
call 814-353-1300, ext. 2113.
Restek Trademarks: CarboFrit, EZ-No-Vent, Integra-Guard,
MegaMix, Pinnacle, Plus 1, Precision, Press-Tight, Rtx,
Silcosteel, Siltek, Stabilwax, Sulfinert, Uniliner, Vu2 Union,
Restek logo.
Other Trademarks: Agilent (Agilent Technologies, Inc.),
Cellosolve (Union Carbide Corp.), FocusLiner (SGE), KEL-F (3M
Co.), Teflon (E.I. du Pont de Nemours & Co., Inc.), Tenax
(Enka Research Institute Arnhem), TRACE (Thermo Finnigan),
Vespel, Viton (E.I. du Pont de Nemours & Co., Inc.).
Restek USA: Phone: 800-356-1688 or 814-353-1300 • Fax: 814-353-1309 •
110 Benner Circle, Bellefonte, PA 16823
Restek France: Phone: 01 60 78 32 10 • Fax: 01 60 78 70 90 •
Restek GmbH: Phone: 49 06172 2797 0 • Fax: 49 06172 2797 77 •
Restek Ireland: Phone: 44 28 9081 4576 • Fax: 44 28 9081 4576 •
Thames Restek UK Ltd: Phone: 01494 563377 • Fax: 01494 564990 •
FREEVespel® Ring Inlet Seals.
See Page 19.
-INT