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7
PFH Series PTFE Flexible Metal Hose
Features
• High pressure application up to 3,000 psig (206 bar)
• PTFE hose material has improve permeation resistant
• Applied with stainless steel 304 wire braid, its improve
the internal pressure and protect the wear.
• Variable end connection available
Table 17.
Working / Burst Pressure at Temperature
Nominal
Hose Size,
in. (
mm
)
PFH
Series
Designator
Temperature
Range
Working Pressure
psig (bar)
@70°F (20°C)
Burst Pressure
Minimum
psig (bar)
@ 70°F (20°C)
Bending Radius
Minimum
in. (
cm
)
Static
Dynamic
1/4 (
6.35
)
PFH4
-65 to 450°F
(-53 to 230°C)
3000 (
206
)
1200 (
826
)
1.5 (
3.8
)
2.0 (
5.1
)
3/8 (
9.52
)
PFH6
2500 (
172
)
1000 (
689
)
3.5 (
8.9
)
5.0 (
12.7
)
Table 18.
Pressure-Temperature Ratings
Temperature, °F
-65
0
100
200
300
400
450
Temperature, °C
-53
-17
37
93
148
204
230
Factors
0.75
1
1
0.58
0.52
0.48
0.46
PFH Series PTFE Flexible Metal Hose
Table 19.
Hose Assembly of DK-LOK Tube Fittings at Both Ends
Ordering Number
END Connections Overall Length
B
in. (
cm
)
Live Length
L
in. (
cm
)
Hose I.D
Minimum
in. (
cm
)
Hex. Flat
Max. O.D
on the assembly
DK-Lok
Tube Fittings
PFH4-
DL4DL4-6
1/4”
8.0 (
20.3
)
5.97 (
15.2
)
0.16 (
4.1
)
9/16 (
14.28
)
DL4DL4-12
14.0 (
35.6
)
12.0 (
30.5
)
DL4DL4-18
20.0 (
50.8
)
18.0 (
45.7
)
DL4DL4-24
26.0 (
66.0
)
24.0 (
61.0
)
DL4DL4-36
38.0 (
96.5
)
36.0 (
91.4
)
DL4DL4-48
50.0 (
127.0
)
48.0 (
122.0
)
DL4DL4-60
62.0 (
157.0
)
60.0 (
152.0
)
DL4DL4-72
74.0 (
188.0
)
72.0 (
183.0
)
DL4DL4-120
122.0 (
310.0
)
120.0 (
305.0
)
PFH6-
DL6DL6-12
3/8”
14.0 (
35.6
)
11.8 (
30.0
)
0.27 (
6.9
)
13/16 (
20.64
)
DL6DL6-18
20.0 (
50.8
)
17.8 (
45.2
)
DL6DL6-24
26.0 (
66.0
)
23.8 (
60.5
)
DL6DL6-36
38.0 (
96.5
)
35.8 (
90.9
)
DL6DL6-48
50.0 (
127.0
)
47.8 (
121.0
)
DL6DL6-60
62.0 (
157.0
)
59.8 (
152.0
)
DL6DL6-72
74.0 (
188.0
)
71.8 (
182.0
)
DL6DL6-96
98.0 (
249.0
)
95.8 (
243.0
)
DL6DL6-120
122.0 (
310.0
)
120.0 (
305.0
)
Ordering Information and Table of Dimensions