PFA Tube Fittings 1

www.swagelok.com

FITTINGS
PFA
PFA Tube Fit tings

■ Temperatures from 70 to 400ºF (20 to 204°C)

■ Working pressures up to 275 psig (18.9 bar)

■ Sizes from 1/8 to 1/2 in.

 2 Tube Fittings

Features Materials
■ Audible click ensures tubing is inserted properly. ■ Fittings—Molded PFA/ASTM D3307 Type I
FITTINGS
PFA

■ Visual indication of proper pull-up:

■ no gap between body hex and hex nut
■ hex flat alignment.
■ Smooth, molded internal wetted surfaces reduce potential
for system contamination.
■ Grooved tubing allows for higher working pressure.
■ Wrench assembly avoids the potentially unsafe practices of
hand assembly and disassembly.

Pressure-Temperature Ratings
Pressure ratings are for Swagelok® PFA tube fittings used with properly grooved Swagelok PFA tubing.

Tube Wall, in. 0.030 0.047 0.062

Tube Size, in. 1/8 1/4 1/4 3/8 1/2
Temperature, °F (°C) Working Pressure, psig (bar)
70 (20) 275 (18.9) 200 (13.7) 275 (18.9) 180 (12.4) 125 (8.6)
100 (37) 245 (16.8) 180 (12.4) 245 (16.8) 155 (10.6) 115 (7.9)
200 (93) 145 (9.9) 110 (7.5) 145 (9.9) 93 (6.4) 68 (4.6)
300 (148) 87 (5.9) 64 (4.4) 87 (5.9) 48 (3.3) 32 (2.2)
400 (204) 47 (3.2) 34 (2.3) 47 (3.2) 11 (0.75) 11 (0.75)

Ordering Information and Dimensions

Dimensions, in inches (millimeters), are for reference only and are subject to change. Dimensions shown with Swagelok nuts
finger-tight. E dimensions refer to the minimum opening.

Unions Tube
Dimensions, in. (mm)
F flat Size Ordering
in. Number A D E F
E 1/8 PFA-220-6 1.45 (36.8) 0.50 (12.7) 0.09 (2.3) 1/2
1/4 PFA-420-6 1.70 (43.2) 0.60 (15.2) 0.19 (4.8) 5/8
D 3/8 PFA-620-6 1.80 (45.7) 0.67 (17.0) 0.28 (7.1) 13/16
A
1/2 PFA-820-6 2.05 (52.1) 0.90 (22.9) 0.41 (10.4) 1

Bulkhead Unions Tube

Dimensions, in. (mm)
F flat Size Ordering
in. Number A Ax D E F
1/4 PFA-420-61 2.42 (61.5) 1.41 (35.8) 0.60 (15.2) 0.19 (4.8) 7/8
E Panel hole size is 0.70 in. (17.8 mm); maximum panel thickness is 0.44 in. (11.2 mm).

D
Ax
A

Reducing Unions Dimensions, in. (mm)

Tube Size Ordering
F flat in. Number A D Dx E F
3/8 to 1/4 PFA-620-6-4 1.77 (45.0) 0.67 (17.0) 0.60 (15.2) 0.19 (4.8) 13/16
E 1/2 to 1/4 PFA-820-6-4 1.91 (48.5) 0.90 (22.9) 0.60 (15.2) 0.19 (4.8) 1
1/2 to 3/8 PFA-820-6-6 1.94 (49.3) 0.90 (22.9) 0.67 (17.0) 0.28 (7.1) 1
D Dx
A
 PFA Tube Fittings 3

Ordering Information and Dimensions

Dimensions, in inches (millimeters), are for reference only and are subject to change. Dimensions shown with Swagelok nuts

FITTINGS
PFA
finger-tight. E dimensions refer to the minimum opening.

Union Elbows Tube

Dimensions, in. (mm)
Size Ordering
F wrench in. Number A D E F
pad
E 1/8 PFA-220-9 0.91 (23.1) 0.50 (12.7) 0.09 (2.3) 1/2
1/4 PFA-420-9 1.13 (28.7) 0.60 (15.2) 0.19 (4.8) 5/8
D A 3/8 PFA-620-9 1.23 (31.2) 0.67 (17.0) 0.28 (7.1) 13/16
1/2 PFA-820-9 1.45 (36.8) 0.90 (22.9) 0.41 (10.4) 1

Union Tees Tube

Dimensions, in. (mm)
Size Ordering
in. Number A Ax D E F
E 1/8 PFA-220-3 1.82 (46.2) 0.91 (23.1) 0.50 (12.7) 0.09 (2.3) 1/2
1/4 PFA-420-3 2.26 (57.4) 1.13 (28.7) 0.60 (15.2) 0.19 (4.8) 5/8
F D Ax
wrench 3/8 PFA-620-3 2.46 (62.5) 1.23 (31.2) 0.67 (17.0) 0.28 (7.1) 13/16
pad 1/2 PFA-820-3 2.90 (73.7) 1.45 (36.8) 0.90 (22.9) 0.41 (10.4) 1
Ax
A

Male Connectors Tube NPT

Dimensions, in. (mm)
Size Size Ordering
F flat in. in. Number A D E F
1/8 1/8 PFA-220-1-2 1.21 (30.7) 0.50 (12.7) 0.09 (2.3) 1/2
E
1/8 PFA-420-1-2 1.36 (34.5)
1/4 0.60 (15.2) 0.19 (4.8) 5/8
1/4 PFA-420-1-4 1.54 (39.1)
D
A 1/4 PFA-620-1-4
3/8 1.60 (40.6) 0.67 (17.0) 0.28 (7.1) 13/16
E ELBOW MS-01-05 3/8
C-ELD-0200 PFA-620-1-6
3/8 PFA-820-1-6 1.74 (44.2)
1/2 0.90 (22.9) 0.41 (10.4) 1
1/2 PFA-820-1-8 1.93 (49.0)

Male Elbows Tube NPT

Dimensions, in. (mm)
Size Size Ordering
F wrench in. in. Number A D E F H
pad 1/8 1/8 PFA-220-2-2 0.91 (23.1) 0.50 (12.7) 0.09 (2.3) 1/2 0.67 (17.0)
E
1/8 PFA-420-2-2 0.78 (19.8)
1/4 1.13 (28.7) 0.60 (15.2) 0.19 (4.8) 5/8
H 1/4 PFA-420-2-4 0.96 (24.4)
D
1/4 PFA-620-2-4
3/8 1.23 (31.2) 0.67 (17.0) 0.28 (7.1) 13/16 1.03 (26.2)
A 3/8 PFA-620-2-6
3/8 PFA-820-2-6 1.14 (29.0)
1/2 1.45 (36.8) 0.90 (22.9) 0.41 (10.4) 1
1/2 PFA-820-2-8 1.33 (33.8)
 4 Tube Fittings

Ordering Information and Dimensions

Dimensions, in inches (millimeters), are for reference only and are subject to change. Dimensions shown with Swagelok nuts
FITTINGS
PFA

finger-tight. E dimensions refer to the minimum opening.

Back Tube Front Tube Plugs Tube

Ferrules Size Ordering Ferrules Size Ordering Size Ordering
in. Number➀ in. Number in. Number
SWAGELOK PFA CAP MS-01-05 C-ELD-0013-B
1/4 PFA-424-1 1/8 T-203-1➀ 1/8 PFA-220-P
3/8 PFA-624-1 1/4 PFA-423-1 1/4 PFA-420-P
1/2 PFA-824-1 3/8 PFA-623-1 3/8 PFA-620-P
➀ 1/8 in. back ferrule 1/2 PFA-823-1 1/2 PFA-820-P
integral with nut.
➀ PTFE material.

Nuts Dimensions
Caps Tube
Tube F flat Dimensions, in. (mm)
1/8 in. G flat in. (mm) Size Ordering
Size Ordering in. Number A D F
in. Number G L
1/8 PFA-220-C 0.83 (21.1) 0.50 (12.7) 1/2
0.57
1/8 PFA-222-1➀ 1/2
(14.5) 1/4 PFA-420-C 0.98 (24.9) 0.60 (15.2) 5/8
L 0.65 D 3/8 PFA-620-C 1.04 (26.4) 0.67 (17.0) 13/16
1/4 PFA-422-1 5/8 A
(16.5)
1/4, 3/8, G flat 1/2 PFA-820-C 1.18 (30.0) 0.90 (22.9) 1
1/2 in. 0.68
3/8 PFA-622-1 13/16
(17.3)
0.79
1/2 PFA-822-1 1
(20.1)
➀ 1/8 in. back ferrule integral with nut.
L

Installation PFA Tubing and Tools

• PFA tubing MUST be grooved for use with PFA tube For PFA tubing in accordance with
fittings. Use the Swagelok groove cutter tool. ASTM D3307, Type II, in 1/8 to
1 in. and 6 to 12 mm sizes, see the
1. Insert grooved PFA Swagelok Hose and Flexible Tubing
tubing into the Swagelok catalog (MS‑01‑180). The catalog
PFA tube fitting until a also contains ordering information for
clicking sound is heard. the Swagelok groove cutter tool.

2. While holding fitting

body steady, tighten the
blue nut until there is no
gap between the nut and
body hexes.
3. Continue tightening until
the nut and body hexes
are aligned.

Caution: Do not mix or interchange parts with those of

other manufacturers.
MS-01-05, R9, October 2017
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material compatibility, adequate ratings, proper installation, contact your authorized Swagelok representative.
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