Tube & Pipe Fittings
Restek offers an extensive line of brass and stainless steel tube and pipe fittings to help you install and maintain your gas chroma-
tography equipment. Parker’s (A-Lok) two-piece ferrule design, alongwithNPT fittings, are ideal for installing new equipment,
modifying existing instrumentation, or replacingworn connections. Quick couplings are also available to connect and disconnect
gas lines quickly and easily. If you frequently relocate instrumentation, switch carrier gases, or changemake-up gases for
different detection systems, these quick couplings are aworthwhile addition to your system.
Size
Brass
Stainless Steel
Replaces
Replaces
(inches)
cat.#
quant.
cat.#
quant.
I
I
Parker #
Swagelok #
Fitting Type
EI
1/16
1/8
Nut
1/4
21800
21801
21802
21900
21901
21902
21903
21904
21905
21906
21907
21908
21909
21910
21911
21915
21916
21917
21918
21919
21920
5
lNU1
102-l
10
2NU2
202-1
10
4NU4
402-1
10
1FFl
103-l
20
2FF2
203-l
20
4FF4
403-l
10
1BF1 101-l
20 2BF2
204-1
20
4BF4
404-1
2
___
___
5
___
___
5
___
___
2 1BLP1 100-P
4
2BLP2
200-P
4
4BLP4
400-P
1
1SC1
100-6
2
2SC2
200-6
2
4SC4
400-6
20
40
40
20
40
40
D
Front Ferrule
1/16
21803
1/8
21804
1/4
21805
II
Back Ferrule
1/16
21806
20
1/8
21807
40
1/4
21808
40
ema
Nut &Ferrule Set
1/16
1/8
1/4
21809
10
21810
20
21811
20
21815
5
21816
10
21817
10
21818
3
21819
5
21820
5
21823
5
21824
5
21825
5
a
Plug
1/16
1/8
1/4
21923
1
2RUl
200-6-1
21924
2
4RUl
400-6-1
21925
2
4RU2
400-6-2
1/16
21826
2
21926
1
1ET 1
100-3
1/8
21827
2
21927
1
2ET2
200-3
1/4
21828
2
21928
1
4ET4
400-3
I
I
1/8
1
21829
2
21929
1
2ECR2
200-4
‘
1/4
1
21830
2
21930
1
4ECR4
400-4
21931
2
2TURl
100-R-2
21932
2
4TUR1
100-R-4
21933
2
2TUR4
400-R-2
21934
2
4TUR2
200-R-4
Cross
Tube toCompression
Reducer
1/8-1/16 21831
l/4-1/16
21832
1/8-1/4
21833
l/4-1/8
21834
-
18 -
18
18
1998
