|
Metal
Hose Assembly
Terminology
| Specification |
According to which the hose
assembly is manufactured |
Annular Core
|
Designed so that each
convolution is a complete circle or
ring |
| Close
Pitch
|
Less spacing between the
corrugations, thereby giving longest fatigue
life and minimum bend
radius |
| Braid
|
Woven wire sheath placed
over hose which prevents elongation of the hose
under internal
pressure |
| Fittings |
Parts attached to the ends of metal
hose so that it can be connected to
other components like flanges, unions,
stub ends, nipples |
| Constant flexing bend
radius |
The minimum radius to which a hose
can be repeatedly bent and render
satisfactory flexure
life |
| Operating
conditions |
Pressure, Temperature,
Media, Motion and application
involved |
| Max. Test
Pressure
|
Max. Pressure for testing
purpose. Based on 150% of the max. working / design
pressure |
| Media
|
Material conveyed by the hose
assemblies such as chemicals, gases,
liquids |
| Working
temperature |
Temperature which hose is subjected
to during operation |
| Corrosion
Data |
Contact AIPL or any NACE
standards |
| Rated Burst
Pressure
|
The pressure at which the
hose assembly can be expected to
fail |
| Safety
Factor |
Difference between working
pressure and rated burst
pressure |
Construction
Specification
|
BS 6501 |
| Close Pitch
Annular Core
|
SS 304, SS 304L, SS 321, SS 316, SS
316L
|
| Braid |
SS 304, SS 316 |
| Size
Range
|
1/4" ID to 8" ID |
| Temperature
|
(-)200 to 800°C for SS 321 / SS 316
/ SS 316L (-)200 to 400°C for SS 304 /
SS
304L |
Technical
Data
|
Size (ID) |
OD
(Single
Braid) |
Single Braid (bar
g) |
Double Braid (bar
g)
|
Bend
Radius (mm) (Single
Braid)
|
|
Inch |
mm |
mm |
W.P. |
T.P. |
W.P. |
T.P. |
Static |
Dynamic |
|
1/4 |
6.40 |
12.20 |
100 |
150 |
100 |
225 |
45 |
100 |
|
3/8 |
9.50 |
15.80 |
90 |
135 |
90 |
203 |
50 |
150 |
|
1/2 |
12.70 |
19.00 |
80 |
120 |
80 |
180 |
65 |
200 |
|
3/4 |
19.05 |
26.30 |
64 |
96 |
64 |
144 |
70 |
203 |
|
1 |
25.40 |
33.80 |
50 |
75 |
50 |
13 |
104 |
229 |
|
1
1/4 |
31.75 |
42.00 |
40 |
60 |
40 |
90 |
117 |
267 |
|
1
1/2 |
38.10 |
51.60 |
30 |
45 |
30 |
68 |
152 |
292 |
|
2 |
50.80 |
61.70 |
28 |
42 |
28 |
63 |
160 |
318 |
|
2
1/2 |
63.50 |
77.00 |
24 |
36 |
24 |
54 |
175 |
508 |
|
3 |
76.20 |
91.00 |
18 |
27 |
18 |
41 |
231 |
610 |
|
4 |
101.60 |
117.50 |
16 |
24 |
16 |
36 |
250 |
750 |
|
5 |
127.00 |
149.00 |
12 |
18 |
12 |
27 |
318 |
900 |
|
6 |
152.40 |
178.00 |
10 |
15 |
10 |
22.5 |
353 |
1050 |
|
8 |
203.20 |
228.00 |
8 |
12 |
8 |
18 |
456 |
1180 |
* Working Pressure and Test Pressure are
at ambient temperature of 30°C. For elevated
temperatures, --please refer temperature
correction factor. * Safety Factor 1 : 4 * For other technical
details such as pressure drop, weight, no. of
convolutions, please contact AIPL's
-Technical
Department.
Temperature Correction
Factor
|
Temp.
(°C)
|
Correction
Factor |
|
(-)
200 to 50 |
1.00 |
|
100 |
0.94 |
|
150 |
0.88 |
|
200 |
0.84 |
|
250 |
0.79 |
|
300 |
0.76 |
|
350 |
0.71 |
|
400 |
0.67 |
|
450 |
0.64 |
|
500 |
0.61 |
|
550 |
0.60 |
|
600 |
0.58 |
|
650 |
0.55 |
|
700 |
0.50 |
|
750 |
0.45 |
|
800 |
0.44 | |
How to apply?
- Determine Max. Working
Temperature - Locate appropriate correction
factor on chart - Multiply the correction
factor by max. working pressure
|
Special Type of Metal Hose
Assembly
|
With
Inside Liner ( i.e Interlocked,
Rubber , Teflon)
|
With
Outside cover ( i.e
Interlocked, Rubber)
|
Vacuum /
Steam Jacket
|
|
|
|
|
Installation
Methods
Angular
Bending
End
Fittings
|
Hex Male
Nipple
(BSP/NPT/METRIC)
|
Fixed Female
(BSP/NPT/METRIC) |
Swivel Female
(BSP/NPT/METRIC)
|
|
|
|
|
|
Weld neck Flange
(ASA/DIN/BS)
|
Lap Joint Flange
(ASA/DIN/BS) |
Fixed
Flange (ASA/DIN/BS) |
|
|
|
|
|
Plain Male
Nipple
(BSP/NPT/METRIC)
|
Plain Female
Nipple (BSP/NPT/METRIC)
|
Pipe weld ends (37 1/2 ° Bevel
end)
|
|
|
|
|
|
Female Union
(BSP/NPT/METRIC)
|
Male Union
(BSP/NPT/METRIC) |
JIC 37° Seat
(UNF) |
|
|
|
|
|
Victaulic
Groove Pipe End
|
With 45°
elbow
|
With 90°
elbow
|
|
|
|
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