Valco fused silica adaptors
and fittings for capillary GC
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Features
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one-piece FS adaptors: recommended for use in fittings where the polyimide ferrule need not be removed
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two-part removable FSR adaptors: recommended for use in Valco valves;
consists of a liner which slides over the fused silica tubing, and a ferrule, both made of high temperature polyimide alloys
the liner with an enlarged diameter at one end fits within the nut, thus ensuring that the liner and the tube within are removed as the nut is unscrewed from the valve (see figure below)
The 1/16" FSR adaptor comes with a special counterbored 1/16" nut (ZCN1) to receive the liner. The 1/32" adaptor works with standard Valco 1/32" nuts.
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Union with FS adaptors
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To order Valco fittings for use with fused silica adaptors (FS or FSR recommended), add suffix "J" to the fitting code and specify the appropriate number of adaptors separately. The stainless steel ferrules normally provided with the fittings are omitted since they are replaced by the FS (or FSR) adaptors. Again, for 1/16" FSR adaptors use the counterbored nut ZCN1 supplied with the adaptor.
Examples:
1) Connection of 2 capillaries with 0.25 mm ID and 0.4 mm OD: either use a 1/32" union ZU.5TJ and 2 FS adaptors FS.4 or a 1/32" union ZU.5TJ and 2 removable FSR adaptors FSR.4
2) Connection of 2 capillaries with 0.53 mm ID and 0.8 mm OD: we recommend either a 1/16" union ZU1TJ and 2 FS adaptors FS1-.8 or a 1/16" union ZU1TJ and 2 removable FSR adaptors FS1R.8
If capillaries 1 and 2 have different outer diameters, the corresponding different FS adaptors have to be used.
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Union with FSR adaptors
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Valve with FSR adaptors
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For use of fused silica adaptors with Valco valves please order the number of adaptors (FSR required) when you order the valve, or when you want to use an existing valve with open tubular columns. Please note that for 1/16" FSR adaptors you have to use the special counterbored nut ZCN1 which is supplied with the adaptors FS1R.5 and FS1R.8.
Examples:
1) For connecting a capillary with 0.32 mm ID (0.5 mm OD) to a valve with 1/32" fittings we recommend the removable FSR adaptor FSR.5.
2) For connecting a capillary with 0.53 mm ID (0.8 mm OD) to a valve with 1/16" fittings we recommend the removable FSR adaptor FS1R.8.
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Ordering information
Valco code
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Dimensions
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Pack of
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REF
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One-piece fused silica adaptors
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for capillary OD
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FS.25-5
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1/32"
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< 0.25 mm
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5
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724405
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FS.4-5
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1/32" |
0.25 - 0.4 mm
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5
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724243
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FS.5-5
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1/32" |
0.4 - 0.5 mm
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5
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724244
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FS1.4-5
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1/16" |
< 0.4 mm
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5
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724406
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FS1.5-5
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1/16" |
0.4 - 0.5 mm
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5
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724407
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FS1.8-5
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1/16" |
0.6 - 0.8 mm
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5
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724408
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Removable fused silica adaptors (incl. nuts)
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FSR.25-5
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1/32" |
< 0.25 mm
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5
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724409
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FSR.4-5
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1/32" |
0.25 - 0.4 mm
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5
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724410
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FSR.5-5
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1/32" |
0.4 - 0.5 mm
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5
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724411
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FS1R.5-5
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1/16" |
< 0.5 mm
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5
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724335
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FS1R.8-5
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1/16" |
0.5 - 0.5 mm
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5
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724334
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Replacement liners
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FSL.25-5
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1/32" |
< 0.25 mm
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5
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724412
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FSL.4-5
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1/32" |
0.25 - 0.4 mm
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5 |
724413
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FSL.5-5
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1/32" |
0.4 - 0.5 mm
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5
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724414
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FS1L.5-5
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1/16" |
< 0.5 mm
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5
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724415
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FS1L.8-5
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1/16" |
0.5 - 0.8 mm
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5
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724416
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Special nut for fused silica adaptors
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ZCN1
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1/16" |
counterbored
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1
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724417
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Unions, Tees and crosses for fused silica adaptors (without ferrules, but incl. standard nuts)
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ZU.5TJ
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1/32" - 1/32"
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union for butt connection
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1
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724418
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ZU1TJ
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1/16" - 1/16" |
union for butt connection |
1
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724333
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ZT.5J
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1/32" |
Tee
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1
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724421
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ZT1CJ
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1/16" |
Tee, capillary bore
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1
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724336
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ZX.5J
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1/32" |
cross
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1
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724422
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ZX1CJ
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1/16" |
cross, capillary bore
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1
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724337
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Tools for Valco fused silica adaptors
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OEW
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open end wrench (3/16" x 1/4") for use with 1/32" fittings
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1
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724423
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PV
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pin vise and drill index (0.34 - 1.0 mm)
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1
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724424
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