product

Convoflex Stainless Steel Metal Hoses

Specification

BS 6501 / ISO 10380

Construction

Metallic Hoses Material : Stainless steel grades 304/ 304L / 316 / 316L / 321
Braid Material : Stainless steel 304/304L/316/316L.
Tube : Heavy wall innercore for corrosive service. Butt welded Annular Corrugations, close- pitch tubing.
Size Range : 6mm I.D. to 750mm I.D.
Temperature : - 200°C to 800°C for AISI 321 & 316
- 200°C to 420°C for AISI 304 & 304L

Metal Hoses Application

These metal hoses are suited for any application where working conditions demand one or a combination of any of the following : absolute leak proof, a high safety factor, extreme temperature, vibrations, high working pressure and corrosion resistance.

Applicable for cryogenic and chemical transfer, vacuum, super-heated steam, coolant lines, fuel and oil burner lines, petroleum, refrigerants, gases, poisonous media and food stuff.

Metallic Hoses Specification Chart

Code
I.D. inches
I.D. mm
O.D. mm
Working Pressure kgf/cm2
Test Pressure kgf/cm2
Minimum bend radius mm
GSS 6
1/4
6
14
100
150
90
GSS 10
3/8
10
19
90
135
150
GSS 12
1/2
12
22
80
120
200
GSS 20
3/4
20
29
64
96
203
GSS 25
1
25
36
50
75
229
GSS 32
11/4
32
45
40
60
267
GSS 38
11/2
38
55
30
45
292
GSS 50
2
50
68
28
42
318
GSS 65
21/2
65
84
24
36
508
GSS 80
3
80
97
18
27
610
GSS 100
4
100
126
16
24
750
GSS 125
5
125
152
12
18
900
GSS 150
6
150
178
10
15
1050
GSS 200
8
200
225
8
12
1180
GSS 250
10
250
278
6
9
1250
GSS 300
12
300
330
5
7.5
1400
  • For static pipe work, the bend radius can be reduced considerably.
  • For extra high pressure, extra braid can be provided. Consult our Technical Department.
  • For pressure drop estimates of corrugated metal hoses, consult our Technical Department.
  • The above pressure ratings are for fluid at ambient temp. of 30°C.

Stainless Steel Big Bore Metal Hoses

I.D. Inches
I.D. mm
O.D. mm
Working Pressure kgf/cm2
Test Pressure kgf/cm2
Minimum bend radius mm
14
350
371
11
16
1676
16
400
422
8
12
1880
18
450
483
6
9
2083
20
500
533
5
7.5
2286
22
550
584
3.5
5.25
2489
24
600
635
3
4.5
2462
30
750
788
1.5
2.25
3251

Temperature

As the operating temperature of a hose assembly increases, the maximum working pressure of the assembly decreases.

Below is a chart showing temperature correction factors for 'CONVOFLEX' Stainless Steel Metal Hoses.

(0C)
Correction Factor
(0C)
Correction Factor
-200 to 50
1.00
400
0.67
100
0.94
450
0.64
150
0.88
500
0.61
200
0.84
550
0.60
250
0.79
600
0.58
300
0.76
700
0.56
350
0.71
800
0.54

How to use Temperature Corrections Factor Chart?

  • Determine the maximum operating temperature of the application.
  • Locate this temperature on the chart and read across to the proper factor.
  • Multiply this factor times the maximum working pressure as determined from the Metallic Hoses Specification Chart.
  • This answer is your maximum Safe Working Pressure at that Elevated Temperature.