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One-piece fused silica adapters (FS)

The one piece FS adapter, essentially a reducing ferrule, is recommended for use in fittings where the polyimide ferrule will not be removed. Connections are made and disconnected by loosening the fitting nut and sliding the tube out.

Note that the determining factor in adapter size selection is the fused silica tubing�s outer diameter, or OD. Typical ODs for common columns are included in the product number tables.

Temperature ratings
Polyimide adapters can be used at temperatures up to 350°C.
PEEK adapters are not recommended for use above 175°C.

Product numbers

Select a material below to jump to product numbers:

Polyimide, Valcon
PEEK
Polyimide, Virgin

Read about properties of polymers

Tech tips

Which adapter for which column? Start with the column ID.
Removing broken tubing from a union
Using adapters as electrical insulators

Further reference

About fused silica adapters
   Removable fused silica adapters (FSR)
Other fittings for fused silica
   Nanovolume fittings
   Fused silica unions
   Fused silica tees and crosses
Tools
   Ferrule removal kit
   Pin vise and drill index
      (useful for enlarging the inner diameter of an FS adapter)

Polyimide, Valcon

Valcon polyimide is a unique graphite-reinforced composite, specially prepared to maximize mechanical stability at high temperatures. Small blocks are subjected to extreme loads by a process known as hot isostatic pressing, with individual ferrules subsequently machined from these blocks. The result of this two-step process is a fused silica adapter with high temperature stability which far exceeds that of parts produced by conventional molding.

Sizes available: 1/32” and 1/16”
Sold in packages of 5.

Size	Tubing OD:	Product No.
1/32"	< 0.25 mm	FS.25-5
	0.25 - 0.40 mm	FS.4-5
	0.40 - 0.50 mm	FS.5-5
	0.50 - 0.80 mm	ZF.5V-5
1/16"	< 0.25 mm	FS1.2-5
	0.25 - 0.30 mm	FS1.25-5
	0.30 - 0.35 mm	FS1.3-5
	0.35 - 0.40 mm	FS1.4-5
	0.40 - 0.50 mm	FS1.5-5
	0.50 - 0.80 mm	FS1.8-5
	0.80 - 0.90 mm	FS1.9-5
	0.90 - 1.0 mm	FS11.0-5

PEEK

Sizes available: 1/32” and 1/16”
Sold in packages of 5.

Size	Tubing OD:	Product No.
1/32"	< 0.25 mm	FS.25PK-5
	0.25 - 0.40 mm	FS.4PK-5
	0.40 - 0.50 mm	FS.5PK-5
	0.50 - 0.80 mm	ZF.5PK-5
1/16"	< 0.25 mm	FS1.2PK-5
	0.25 - 0.30 mm	FS1.25PK-5
	0.30 - 0.35 mm	FS1.3PK-5
	0.35 - 0.40 mm	FS1.4PK-5
	0.40 - 0.50 mm	FS1.5PK-5
	0.50 - 0.80 mm	FS1.8PK-5
	0.80 - 0.90 mm	FS1.9PK-5
	0.90 - 1.0 mm	FS11.0PK-5

Polyimide, Virgin

Virgin polyimide adapters are effective electrical insulators, making them the ideal choice for capillary electrophoresis. Virgin polyimide is produced as Vespel®.

Sizes available: 1/32” and 1/16”
Sold in packages of 5.

Size	Tubing OD:	Product No.
1/32"	< 0.25 mm	FS.25V1-5
	0.25 - 0.40 mm	FS.4V1-5
	0.40 - 0.50 mm	FS.5V1-5
	0.50 - 0.80 mm	ZF.5V1-5
1/16"	< 0.25 mm	FS1.2V1-5
	0.25 - 0.30 mm	FS1.25V1-5
	0.30 - 0.35 mm	FS1.3V1-5
	0.35 - 0.40 mm	FS1.4V1-5
	0.40 - 0.50 mm	FS1.5V1-5
	0.50 - 0.80 mm	FS1.8V1-5
	0.80 - 0.90 mm	FS1.9V1-5
	0.90 - 1.0 mm	FS11.0V1-5

Tech Tip

Which adapter for which column?
Using the fused silica ID as a starting place, here are the most common sizes of columns and adapters. However, note that the determining factor in adapter size selection is the fused silica tubing�s outer diameter, or OD. Product numbers are for Valcon Polyimide adapters.

Adapter size	Column ID	Column OD (typical)	Product No.
1/32"	< 0.20 mm	0.25 mm	FS.25-5
	0.25 mm	0.4 mm	FS.4-5
	0.32 mm	0.5 mm	FS.5-5
	0.53 mm	0.8 mm	ZF.5V-5
1/16"	< 0.20 mm	0.25 mm	FS1.25-5
	0.25 mm	0.4 mm	FS1.4-5
	0.32 mm	0.5 mm	FS1.5-5
	0.53 mm	0.8 mm	FS1.8-5

Tech Tip

Removing broken tubing from a union
If a fused silica tube breaks off in a through-type union, remove the nuts and the tube opposite the broken one. Clear the fitting by passing a drill or wire of the appropriate diameter into the unbroken side and through the center of the fitting. Our ferrule removal kit can be used to remove ferrules from all types of fittings.

Tech Tip

Using adapters as electrical insulators
Virgin polyimide adapters are effective electrical insulators, making them the ideal choice for capillary electrophoresis. Virgin polyimide is produced as Vespel®.