Flexible Metal Hose Products
Specialty Flexible Hose Solutions of Stainless Steel
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FLEXIBLE METAL HOSE PRODUCTS
The AEROCOM Advantage
Aerocom offers engineered solutions that address specific flexible piping challenges
such as vibration, thermal, or pressure related applications involving the transfer of
liquids or gases. The hose and fittings included in this brochure are precisely
manufactured and coupled to assure unequalled quality and immediate response
to your needs.
Rapid quotation and delivery response to even the most difficult applications are
our specialties. Aerocom fabricates medium and high pressure corrugated flexible
metal hose assemblies with their associated fittings, adapters and accessories.
FLEXIBLE METAL HOSE ASSEMBLIES BY AEROCOM
TO MEET YOUR SPECIFIC APPLICATION REQUIREMENTS
• CAD Designed
• Custom Fabricated
• Hydrostatic Pressure Tested
• Cleaned for High Purity Gas & Cryogenic Standards
• Identification by Laser Engraving Technology
• Performance Validated
• Certificates for Full Traceability of Materials
• Special Packaging & Crating
• ASME Section VIII Division 1
• CSA B.51 (Fittings of Category “A” - “B” & “D”)
• CSA B.51 (Shop)
• CSA/CGA Gas Hose Applications
• CRN Pressure Vessel Certified
CERTIFICATIONS
MA RKET / PRODUCT A PPLIC ATI ONS
• Power Generation
• Instrument Engineering (Valve Technology)
• HVAC
• Ship Building & Repair
• Steel Mills / Metals
• Water / Waste Water
• Cryogenic / Industrial Gases
• Chemical Processing
• Measurement & Control Systems
• Petro-Chemical / Refinery
• Fuel Cell Power Systems
• Aluminum Industry
• Vacuum & High-Vacuum Technology
• Pulp & Paper
• Oil & Gas Distribution
• OEM Engines
• Volume / Pressure Compensation
• Heat Exchanger
• Railway
• Mass Transit
• Aerospace
WARNING: The products contained in this brochure can be used to convey hazardous fluids, steam or other dangerous materials which can cause
personal injury or property damage. It is important the user analyzes all aspects of the application prior to specifying any product from this catalogue.
Due to the variety of operating conditions and applications, the user, through his/her own analysis and testing, is solely responsible for final product
selection and meeting performance, safety and warning requirements.
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FLEXIBLE METAL HOSE PRODUCTS
AEROCOM SERIES FMH3 STAINLESS STEEL HOSE
CONSTRUCTION: ANNULAR HOSE WITH A STANDARD PITCH
HOSE MATERIAL: 321L, SS316L
BRAID MATERIAL: SS304L
CHARACTERISTICS: LIGHT WEIGHT / HIGH FLEXIBILITY
NOM ID
(in)
1/4
5/16
3/8
1/2
5/8
3/4
1
1 1/4
1 1/2
2
PART
NUMBER
FMH3-04
FMH3-1-04
FMH3-2-04
FMH3-05
FMH3-1-05
FMH3-2-05
FMH3-06
FMH3-1-06
FMH3-2-06
FMH3-08
FMH3-1-08
FMH3-2-08
FMH3-10
FMH3-1-10
FMH3-2-10
FMH3-12
FMH3-1-12
FMH3-2-12
FMH3-16
FMH3-1-16
FMH3-2-16
FMH3-20
FMH3-1-20
FMH3-2-20
FMH3-24
FMH3-1-24
FMH3-2-24
FMH3-32
FMH3-1-32
FMH3-2-32
BRAID
LAYERS
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
NOM OD
(in)
0.38
0.43
0.48
0.48
0.53
0.58
0.56
0.62
0.68
0.66
0.72
0.78
0.85
0.92
0.99
1.05
1.12
1.19
1.27
1.34
1.41
1.62
1.69
1.76
1.95
2.03
2.11
2.38
2.48
2.53
MAXIMUM PRESSURE @ 70ºF (PSIG)
WORKING
72
2,360
2,832
72
1,647
1,976
72
1,639
1,967
72
1,225
1,470
71
1,200
1,440
43
1,034
1,241
43
796
955
43
600
720
28
557
668
28
570
684
TEST
AEROCOM SERIES FMH6 STAINLESS STEEL HOSE
NOM BURST
-9,440
11,328
-6,588
7,904
-6,556
7,868
-4,900
5,880
-4,800
5,760
-4,136
4,964
-3,184
3,820
-2,400
2,880
-2,228
2,672
-2,280
2,736
CONSTRUCTION: ANNULAR HOSE WITH CLOSE PITCH
HOSE MATERIAL: SS321
BRAID MATERIAL: SS304L
CHARACTERISTICS: LIGHT WEIGHT / EXTREMELY HIGH FLEXIBILITY
NOM ID
(in)
1/4
3/8
1/2
3/4
1
1 1/4
1 1/2
2
PART
NUMBER
FMH6-04
FMH6-1-04
FMH6-2-04
FMH6-06
FMH6-1-06
FMH6-2-06
FMH6-08
FMH6-1-08
FMH6-2-08
FMH6-12
FMH6-1-12
FMH6-2-12
FMH6-16
FMH6-1-16
FMH6-2-16
FMH6-20
FMH6-1-20
FMH6-2-20
FMH6-24
FMH6-1-24
FMH6-2-24
FMH6-32
FMH6-1-32
FMH6-2-32
BRAID
LAYERS
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
NOM OD
(in)
0.50
0.57
0.64
0.67
0.74
0.81
0.82
0.89
0.96
1.21
1.28
1.35
1.48
1.55
1.63
1.86
1.93
2.02
2.19
2.28
2.37
2.51
2.61
2.71
MAXIMUM PRESSURE @ 70ºF (PSIG)
WORKING
180
2,082
3,331
100
1,501
2,401
80
1,075
1,720
70
792
1,267
40
571
914
25
531
850
20
472
755
15
505
809
TEST
270
3,122
4,997
150
2,251
3,600
120
1,613
2,580
105
1,188
1,901
60
857
1,371
38
797
1,275
30
708
1,132
23
758
1,213
NOM BURST
-8,326
13,324
-6,004
9,604
-4,301
6,881
-3,168
5,069
-2,285
3,656
-2,125
3,400
-1,887
3,020
-2,022
3,235
CENTERLINE BEND RADIUS
DYNAMIC (in)
STATIC (in)
3.15
1.10
4.85
1.23
5.08
1.52
5.47
1.75
6.28
2.21
6.58
2.65
7.50
3.33
10.20
4.10
11.75
5.08
12.55
6.27
CENTERLINE BEND RADIUS
DYNAMIC (in)
STATIC (in)
3.00
1.00
3.50
1.25
4.00
1.50
6.00
2.25
7.00
2.75
8.00
3.00
9.00
3.50
10.25
4.00
WEIGHT
0.05
0.10
0.15
0.05
0.12
0.19
0.07
0.16
0.25
0.08
0.18
0.28
0.12
0.27
0.42
0.19
0.39
0.59
0.24
0.48
0.68
0.33
0.66
0.99
0.51
0.91
1.31
0.64
1.27
1.90
WEIGHT
0.09
0.17
0.25
0.14
0.26
0.38
0.23
0.35
0.47
0.34
0.54
0.74
0.37
0.60
0.83
0.76
1.07
1.38
0.84
1.24
1.64
1.00
1.62
2.24
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FLEXIBLE METAL HOSE PRODUCTS
AEROCOM SERIES FMH7 STAINLESS STEEL HOSE
CONSTRUCTION: ANNULAR PARALLEL CORRUGATIONS
HOSE MATERIAL: SS321
BRAID MATERIAL: SS304L
CHARACTERISTICS: MEDIUM WEIGHT / MEDIUM FLEXIBILITY
NOM ID
(in)
1/4
3/8
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4
5
6
8
10
12
14
PART
NUMBER
FMH7-04
FMH7-1-04
FMH7-2-04
FMH7-06
FMH7-1-06
FMH7-2-06
FMH7-08
FMH7-1-08
FMH7-2-08
FMH7-12
FMH7-1-12
FMH7-2-12
FMH7-16
FMH7-1-16
FMH7-2-16
FMH7-20
FMH7-1-20
FMH7-2-20
FMH7-24
FMH7-1-24
FMH7-2-24
FMH7-32
FMH7-1-32
FMH7-2-32
FMH7-40
FMH7-1-40
FMH7-2-40
FMH7-48
FMH7-1-48
FMH7-2-48
FMH7-64
FMH7-1-64
FMH7-2-64
FMH7-80
FMH7-1-80
FMH7-2-80
FMH7-96
FMH7-1-96
FMH7-2-96
FMH7-128
FMH7-1-128
FMH7-2-128
FMH7-160
FMH7-1-160
FMH7-2-160
FMH7-192
FMH7-1-192
FMH7-2-192
FMH7-224
FMH7-1-224
FMH7-2-224
BRAID
LAYERS
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
NOM OD
(in)
.50
.57
.64
.67
.74
.81
.82
.89
.96
1.21
1.28
1.35
1.51
1.58
1.65
1.85
1.93
2.02
2.19
2.28
2.37
2.60
2.72
2.84
3.23
3.33
3.43
3.78
3.88
3.98
4.85
4.98
5.10
5.90
6.03
6.15
6.87
7.10
7.33
9.09
9.19
9.28
11.18
11.32
11.45
13.23
13.37
13.50
14.70
14.84
14.98
MAXIMUM PRESSURE @ 70ºF (PSIG)
WORKING
180
2,562
4,099
100
1,500
2,401
80
1,075
1,720
70
792
1,267
40
571
914
25
531
850
20
472
755
15
516
826
12
387
619
10
316
506
8
232
371
6
191
306
5
165
264
6
234
374
5
230
367
3
161
257
3
119
190
TEST
270
3,844
6,150
150
2,251
3,602
120
1,613
2,580
105
1,188
1,901
60
857
1,370
38
797
1,274
30
708
1,133
23
774
1,239
18
581
929
15
474
758
12
348
557
9
286
458
8
247
396
9
350
561
8
344
551
5
241
386
5
178
285
NOM BURST
-10,250
16,400
-6,004
9,604
-4,301
6,880
-3,168
5,069
-2,285
3,654
-2,125
3,398
-1,887
3,021
-2,064
3,302
-1,548
2,477
-1,264
2,022
-927
1,485
-754
1,222
-660
1,056
-934
1,495
-918
1,469
-643
1,029
-476
760
CENTERLINE BEND RADIUS
DYNAMIC (in)
STATIC (in)
5.00
1.00
5.50
1.25
6.00
1.50
8.00
2.25
9.00
2.75
10.50
3.50
12.00
4.00
15.00
5.00
20.00
8.00
22.00
9.00
27.00
13.00
31.00
18.00
36.00
19.00
40.00
20.00
50.00
25.00
60.00
30.00
70.00
35.00
WEIGHT
0.09
0.17
0.26
0.13
0.25
0.36
0.23
0.34
0.46
0.39
0.59
0.79
0.53
0.75
0.98
0.76
1.07
1.37
0.84
1.23
1.63
0.90
1.52
2.14
1.16
1.86
2.56
1.21
2.00
2.80
1.69
2.68
3.68
2.50
3.75
5.00
3.47
4.75
6.04
5.56
9.44
13.36
6.80
12.90
19.00
9.02
14.83
20.64
14.10
21.70
29.30
FLEXIBLE METAL HOSE FEATURES - Medium Pressure Corrugated Hose Assemblies
Maximum Working Pressure:
Full vacuum to 4500 PSIG (depending on size and braid configuration)
Temperature:
Cryogenic to 1500 ºF.
Chemical Resistance:
Good corrosion resistance to most commercial chemicals, acids, alcohols, coolants,elastomers, petroleum compounds, solvents, vinyls, synthetic lubricants & hydraulic fluids.
Application Advantages:
Corrects problems of misalignment. Compensates for thermal expansion
or contraction of piping systems. Also compensates for intermittent or
constant movements, absorbs vibration and noise from pumps, compressors, engines etc.
Light Weight:
High physical strength combined with light weight, easier to move, handle and install than rubber hose with a comparable burst pressure rating.
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FLEXIBLE METAL HOSE PRODUCTS
AEROCOM SERIES FMH8 STAINLESS STEEL HOSE
CONSTRUCTION: ANNULAR WITH CLOSE PITCH
HOSE MATERIAL: SS316L BRAID MATERIAL: SS304L
CHARACTERISTICS: HEAVY WEIGHT / MEDIUM FLEXIBILITY
NOM ID
(in)
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
4
6
PART
NUMBER
FMH8-08
FMH8-1-08
FMH8-2-08
FMH8-12
FMH8-1-12
FMH8-2-12
FMH8-16
FMH8-1-16
FMH8-2-16
FMH8-20
FMH8-1-20
FMH8-2-20
FMH8-24
FMH8-1-24
FMH8-2-24
FMH8-32
FMH8-1-32
FMH8-2-32
FMH8-40
FMH8-1-40
FMH8-2-40
FMH8-48
FMH8-1-48
FMH8-2-48
FMH8-64
FMH8-1-64
FMH8-2-64
FMH8-96
FMH8-1-96
FMH8-2-96
BRAID
LAYERS
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
0
1
2
NOM OD
(in)
0.82
0.92
1.02
1.21
1.31
1.41
1.50
1.60
1.70
1.85
1.97
2.10
2.17
2.30
2.43
2.51
2.64
2.76
3.23
3.36
3.49
3.78
3.91
4.03
4.81
4.93
5.05
6.87
7.10
7.33
MAXIMUM PRESSURE @ 70ºF (PSIG)
WORKING
80
2,194
3,510
70
1,311
2,098
40
1,069
1,710
33
1,110
1,776
20
868
1,388
15
810
1,296
10
578
925
10
540
864
8
333
533
5
266
425
TEST
120
3,291
5,265
105
1,967
3,147
60
1,604
2,566
50
1,666
2,665
30
1,302
2,082
23
1,215
1,944
15
867
1,387
15
810
1,295
12
500
800
8
398
638
NOM BURST
-8,777
14,040
-5,244
8,392
-4,276
6,840
-4,443
7,040
-3,472
5,552
-3,240
5,184
-2,312
3,700
-2,160
3,456
-1,332
2,132
-1,062
1,700
CENTERLINE BEND RADIUS
DYNAMIC (in)
STATIC (in)
8.00
1.50
8.00
2.00
9.00
3.00
10.00
3.25
10.00
3.25
11.50
5.38
24.00
7.00
28.00
7.50
40.00
20.00
95.00
24.00
WEIGHT
0.39
0.63
0.87
0.48
0.79
1.10
0.79
1.20
1.61
1.02
1.66
2.30
1.36
2.11
2.86
1.60
2.56
3.52
2.00
3.12
3.30
2.97
4.42
5.87
3.10
4.55
6.00
3.85
6.45
9.05
C ORRUGATED META L HOSE FITTINGS
Male Nipple
Female Union
Weld Nipple
Female Half Coupling
Female JIC Swivel
Male Hex Nipple
Weld Neck Flange
Floating Flange
Slip On Flange
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FLEXIBLE METAL HOSE PRODUCTS
TEC HNIC AL DATA
TEMPERATURE CORRECTION FACTORS
As the service temperature increases, the maximum pressure a hose assembly can withstand decreases. The material from which the
hose is made and the method of fitting attachment (mechanical, soldered, welded, silver brazed) determines the maximum pressure at
which an assembly can be used. By using the factors given in the chart below, the approximate safe working pressure at elevated
temperatures can be calculated for assemblies with welded or mechanically attached fittings.
TEMP ºF
70
150
200
250
300
350
400
450
500
600
700
800
900
1000
1100
1200
1300
1400
1500
Temperature Correction
Factors
SS304/304L
1.00
0.95
0.91
0.88
0.85
0.81
0.78
0.77
0.77
0.76
0.74
0.73
0.68
0.60
0.58
0.53
0.44
0.35
0.26
SS316L
1.00
0.93
0.89
0.86
0.83
0.81
0.78
0.78
0.77
0.76
0.76
0.75
0.74
0.73
0.67
0.61
0.55
0.48
0.39
SS321
1.00
0.97
0.94
0.92
0.88
0.86
0.83
0.81
0.78
0.77
0.76
0.68
0.62
0.60
0.58
0.53
0.46
0.42
0.37
Saturated Steam
Pressure to Temperature (Hg)
IN of Hg
-29.84
29.74
29.67
29.39
28.89
27.99
26.48
24.04
20.27
15.20
06.46
TEMP ºF
0
20
32
40
60
80
100
120
140
160
180
200
CALCULATING THE MAXIMUM WORKING PRESSURE
Hose Specification Example
Type: FMH7
Size: 3/4” ID
Corrugated Material: SS321
Braid Material: SS304L
Number of Braid Layers: Single
Temperature: 800ºF
The FMH7 specification table lists the 3/4” ID, Single Layer Braid, Maximum Working Pressure at 70ºF at 792 PSIG. Multiply 792 PSIG by 0.73 (800ºF for SS304L listed on the Temperature Correction Factor Table) and the result will be a maximum working pressure of 578
PSIG at 800ºF
Saturated Steam
Pressure to Temperature
PSIG
0
10
20
30
40
50
60
70
80
90
100
125
150
175
200
225
250
275
300
325
350
375
400
425
450
475
500
550
600
700
800
900
1000
1250
1500
2500
TEMP ºF
212
238
259
274
287
298
307
320
324
331
338
353
366
377
388
397
406
414
422
429
436
442
448
454
460
465
470
480
489
505
520
534
546
574
606
669
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FLEXIBLE METAL HOSE PRODUCTS
ANNULAR CORRUGATED HOSE PITCH
All AEROCOM annular hose is available in Open, Standard and Extreme Flex pitch
OPEN PITCH
Open Pitch has fewer corrugations per foot than
Standard Pitch. This hose will not be as flexible
and will have a much lower flexing cycle life. Open
Pitch hose is intended to be used in less severe
applications where flexibility and cycle life are not
an important requirement or an effective method
for dampening vibration.
STANDARD PITCH
Corrugated metal hose is normally manufactured
in Standard Pitch (Close Pitch). Each manufacturer specifies a standard number of corrugations
per foot based on their desire to provide for
acceptable flexibility while considering economic
requirements.
EXTREME FLEX PITCH
Extreme Flex Pitch allows greater flexibility
without thinning the wall of the hose by increasing
the number of corrugations per foot. Extreme Flex
Pitch will normally have a higher flexing cycle life
and can be used in more severe applications
where ease of flexibility is important.
CONSIDERATIONS WHEN SELECTING A FLEXIBLE METAL HOSE FOR A PARTICULAR APPLICATION
Temperature
The physical properties of any material vary with temperature.
Working pressure, the type of media being conveyed and the nature
of the application are what affect the limits for operating temperature.
Flexible metal hose can be used for a wide range of temperatures
given that the material is selected carefully. The temperature limit
depends upon the hose type, metal alloy, end fittings and the
method of fitting attachment choices.
End Fittings
There is an extensive range of end fittings available for flexible metal
hose. These end fittings include male and female pipe threads,
unions, flanges, flared tube fittings or other specially designed connectors. End fittings are attached by welding, silver brazing, soldering or other by other mechanical means, depending on the type of
hose.
Media
The type of media being conveyed through the hose is important to
consider during the selection process. Metal hose can be corroded
by the material flowing through it and the outside environment. A
metal hose can be selected that is resistant to the proposed media
for almost all applications. Since metal hose has a thin wall, it will
not have the same total life as a heavier walled tube or pipe.
In all types, careful hose selection, design of the assembly and installation are important for optimal service life. Mechanical design
and the flexibility of its material determine the flexibility of a hose.
Pressure
The nominal pressure ratings of flexible metal hose vary according
to type, material and size. Pressure is affected by many other factors
such as temperature, pulsating conditions and bending stresses,
under actual working conditions.
Size
The size of flexible metal hose is specified by the nominal diameter.
When choosing a metal hose for a particular application, the existing
piping will normally dictate the size needed. Flow rate, velocity and
pressure drop considerations may also influence the selection of the
hose size.
Motion
Flexible metal hose is used in four types of applications:
• To correct misalignment
• To provide flexibility in manual handling operations
• To compensate for regular or constant movement
• To absorb vibration
To make the best choice for a specific application, consider all the
relevant operating factors against the properties of the various types
of flexible metal hoses.
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Solutions of SS316L
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