<
GC Accessories
<
Hardware & Supplies for Agilent GCs
Inlet Seals: Dual Vespel® Ring
Technical Article:
Dual Vespel® Ring Inlet Seals: Washerless, Leak-Tight Seals for Agilent GCs
| Features | Benefits |
| Vespel® ring embedded in bottom surface. |
Eliminates need for a washer. |
| Vespel® ring embedded in top surface. |
Very little torque required to make seal--reduces operator variability. |
| Lower leak rate compared to OEM metal inlet seals. |
Less detector noise. |
| Prevents oxygen from permeating the carrier gas. |
Increases column lifetime. |
|
Our patented Dual Vespel® Ring Inlet Seal greatly improves injection port performance--it stays sealed, even after repeated temperature cycles, without retightening the reducing nut! This seal features two soft Vespel® rings, one embedded in its top surface and the other embedded in its bottom surface. These rings eliminate the need for a washer, and ensure very little torque is needed to make a leak-tight seal. The rings will not harm the critical seal in the injector body, or any other surface, and are outside the sample flow path. Tests using a high sensitivity helium leak detector show Dual Vespel® Ring Inlet Seals will seal equally effectively at torques from 5 in. lb. to 60 in. lb..
Use a stainless steel seal for analyses of unreactive compounds. To reduce breakdown and adsorption of active compounds, use a gold-plated or Siltek®-treated seal.
