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5
Medium Pressure - FH Series
Medium-Pressure - FH Series
Pressure Rating up to 1,600psig (110bar)
Features
• Designed for general purpose including positive pressure and vacuum service.
• Stainless steel construction of core bellows tube, wire braid, and end connection.
• Single braid layer for pressure containment.
• Custom length available.
1. 304 Stainless Steel
Wire Braid
2. 316 Stainless Steel
Core Bellows Tube
3. 316 Stainless Steel
End Connection
Welding
Table 11.
Working / Burst Pressure and Temperature
Nominal
Hose Size,
in. (
mm
)
FH
Series
Temperature
Range
Working Pressure
psig (bar)
Burst Pressure
psig (bar)
Minimum Bending Radius
in (
mm
)
@ -325 to 300°F
(-200 to 148°C)
@ 70°F
(20°C)
Static
Dynamic
1/4 (
6.35
)
FH4
-325 to 800°F
(-200 to 426°C)
1600 (
110
)
6400 (
440
)
0.75 (
19.0
)
4.33 (
110
)
3/8 (
9.52
)
FH6
1470 (
101
)
6000 (
413
)
0.87 (
22.1
)
5.91 (
150
)
1/2 (
12.70
)
FH8
1110 (
76.4
)
4500 (
310
)
1.04 (
26.4
)
6.50 (
165
)
3/4 (
19.05
)
FH12
860 (
59.2
)
3500 (
241
)
1.61 (
40.9
)
8.86 (
225
)
1 (
25.4
)
FH16
680 (
46.8
)
2680 (
184
)
1.89 (
48.0
)
10.2 (
259
)
1 1/4 (
31.75
)
FH20
680 (
46.8
)
2600 (
179
)
2.16 (
54.9
)
11.8 (
300
)
1 1/2 (
38.10
)
FH24
520 (
35.8
)
2200 (
151
)
2.33 (
59.2
)
13.4 (
340
)
2 (
50.80
)
FH32
450 (
31.0
)
1800 (
124
)
3.10 (
78.7
)
15.4 (
391
)
Table 12.
Temperature De-rating Factors
To determine an allowable pressure at a specific temperature, multiply the working pressure on table 11 by an applicable factor
shown on table 12.
Example : FH4 Series at 500°F(260°C). 1600 psig x 0.86 = 1,376psig
Temperature, °F
-325 to 300
400
500
600
700
750
800
Temperature, °C
-200 to 148
204
260
315
371
398
426
Factors
1.00
0.93
0.86
0.81
0.77
0.75
0.74