valco fittings
|
Valco Instruments Co. Inc. Sales:
800–367–8424
Fax: 713–688–8106
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27
Unions
External union
Through-bore version
(EU4T)
Ends of tubing butt together
External/internal union
Standard bore
(EZU1)
Adapts existing external fittings
to Valco zero volume internal fittings
1/32" external union
(EU.5)
For use with GC capillary columns
1/16"
External
1/16"
internal
1/32"
External
1/32"
external
1/4"
External
1/4"
external
Bulkhead external union
(EBU2L)
Bulkhead external/internal union
(EZBU1)
External unions
Standard material is 300 series stainless. Also available in Hastelloy C and gold-
plated stainless.
Note:
Because 1/16" external fittings have very thin, easily distorted walls, they
are not as durable as 1/16" internal fittings. We recommend the use of external/
internal unions (below) when connecting to an installed external nut.
Tubing
Standard
Bulkhead
Bulkhead
OD Bore
Prod No
Price Prod No
Price
panel hole diameter
1/16"
See note above
1/8"
1.0 mm EU2
––
–
–
––
2.0 mm EU2L
EBU2L
5/16"
1/8"
EU2T
EBU2T
5/16"
1/4"
2.0 mm EU4
EBU4
7/16"
4.6 mm EU4L
EBU4L
7/16"
1/4"
EU4T
EBU4T
7/16"
External unions – 1/32" ultra lowmass
The 1/32" external union is specially designed for use with capillary columns
in GC. It is very low mass and does not require wrenches to seal. Use
only
with
one-piece fused silica adapters, since metal ferrules will distort the detail. Order
fused silica adapters separately
(page 16)
. Standard material is 300 series stainless.
Bore
Prod No
Price
0.25 mm EU.5
0.50 mm EU.5L
1/32"
EU.5T
External/internal unions
Standard material is 300 series stainless. Also available in Hastelloy C and gold-
plated stainless.
Tubing
Standard
Bulkhead
Bulkhead
OD Bore
Prod No
Price Prod No
Price
panel hole diameter
1/32"
0.25 mm EZU.5
––
–
–
––
0.50 mm EZU.5L
––
–
–
––
1/16"
0.25 mm EZU1C
EZBU1C
5/16"
0.50 mm EZU1M
EZBU1M
5/16"
0.75 mm EZU1
EZBU1
5/16"
1/16"
EZU1T
EZBU1T
5/16"
1/8"
1.0 mm EZU2
EZBU2
7/16"
2.0 mm EZU2L
EZBU2L
7/16"
1/8"
EZU2T
EZBU2T
7/16"
CHROMalytic TECHnology Pty Ltd AUSTRALIAN Distributors e-mail:
Tel: 03 9762 2034
