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Hose&Quick Connectors
2
© Copyright 2008-2014. All Rights Reserved.
High Pressure - MFH Series
Table 1.
Working and Burst Pressure at Temperature
Nominal
Hose Size,
in. (
mm
)
MFH
Series
Designator
Temperate
Range
Working Pressure
psig (
bar
)
Burst Pressure
Minimum
psig (
bar
)
Bending Radius (1) Minimum
in (
mm
)
@ -325 to 100°F
(-200 to 37°C)
@ 70°F(20°C)
Static
Dynamic
1/4 (
6.35
)
MFH4
-325 to 850°F
(-200 to 454°C)
3600 (
248
)
14 400 (
992
)
2.25 (
57.2
)
10.0 (
254.0
)
3/8 (
9.52
)
MFH6
2500
(172
)
10 000 (
689
)
3.00 (
76.2
)
12.0 (
305.0
)
1/2 (
12.70
)
MFH8
2200 (
151
)
8 800 (
606
)
4.50 (
114.3
)
16.0 (
406.4
)
(1) Radius measured to inside of bend
Dynamic
One end not fixed
Fixed
F ixed
R
R
Fixed
Static
B
L
F
Pressure Temperature Ratings
Ordering Information and Table of Dimensions
To determine an allowable pressure at a specific temperature, multiply the working pressure on table 1 by an applicable factor
shown on table 2. Example: MFH6 Series at 500°F(260°C). 2500 psig x 0.65 = 1,625psig
Table 2.
Temperature De-rating Factors
Temperature, °F
-325
100
200
300
400
500
600
700
800
850
Temperature, °C
-200
37
93
148
204
260
315
371
426
454
Factors
1.00
1.00
0.84
0.76
0.70
0.65
0.62
0.59
0.57
0.56
Table 3.
Hose Assembly of DK-Lok Tube Fittings at both Ends.
Ordering Number
END Connections Overall Length
B
in. (
cm
)
Live Length
L
in. (
cm
)
Min. I.D.
in. (
mm
)
Hex. Flat
H
in.
DK-Lok
Tube Fittings
MFH4-
DL4DL4-12-S
1/4
12.0 (
30.5
)
8.12 (
20.6
)
0.19 (
4.8
)
13/16
DL4DL4-36-S
36.0 (
91.4
)
32.1 (
81.5
)
DL4DL4-48-S
48.0 (
122
)
44.1 (
112
)
MFH6-
DL6DL6-18-S
3/8
18.0 (
45.7
)
14.0 (
35.6
)
0.28 (
7.1
)
15/16
DL6DL6-36-S
36.0 (
91.4
)
32.0 (
81.3
)
DL6DL6-48-S
48.0 (
122
)
44.1 (
112
)
MFH8-
DL8DL8-18-S
1/2
18.0 (
45.7
)
13.5 (
34.3
)
0.40 (
10.2
)
1 1/16
DL8DL8-48-S
48.0 (
122
)
43.5 (
110
)