Weldon Industrial d.o.o.
Majevička 164, 76300 Bijeljina, Bosnia and Herzegovina
+387 66 395 698 · +387 65 222 957 · office@weldon-bn.com · weldon-bn.com
Majevička 164, 76300 Bijeljina, Bosnia and Herzegovina
+387 66 395 698 · +387 65 222 957 · office@weldon-bn.com · weldon-bn.com
FLEXON-N flexible hoses
Corrugated hose with normal, uncompressed parallel corrugations, DN 6 – DN 150.
- Description
- Corrugated metal hose of high-alloy stainless steel with normal, uncompressed parallel corrugations and circular cross-section, hydraulically formed from a smooth longitudinally welded tube.
- Material
- AISI 316L (1.4404), AISI 321 (1.4541)
- Wall thickness
- 0.15 mm to 0.60 mm
- Sizes
- DN 6 to DN 150 (inside diameter 6 – 150 mm)
- Tightness
- Absolutely leak-tight
- Braid
- Stainless steel wire AISI 304 (1.4301), 1–3 layers
- End fittings
- Flanges, threaded fittings, weld-on ends of stainless and carbon steel, cast iron and non-ferrous metals
- Lengths
- Up to 25 m in one piece, depending on size
- Temperatures
- Optimal resistance from –270 °C to +700 °C
- Application
- Conveying liquids and gases under pressure and vacuum, including corrosive media and atmospheres
FLEXON-N – technical data
| DN | d (mm) | d1 (mm) | Rmin static | Rmin dynamic | Unbraided | 1 braid | 2 braids | |||
|---|---|---|---|---|---|---|---|---|---|---|
| mm | mm | Pw bar | Pt bar | Pw bar | Pt bar | Pw bar | Pt bar | |||
| 6 | 6 | 9.3 | 25 | 100 | 4 | 6 | 100 | 150 | 160 | 240 |
| 10 | 10 | 14 | 40 | 150 | 4 | 6 | 90 | 135 | 144 | 216 |
| 12 | 13 | 17 | 50 | 200 | 3 | 4.5 | 80 | 120 | 128 | 192 |
| 20 | 20 | 27.2 | 70 | 200 | 2 | 3 | 64 | 96 | 102 | 153 |
| 25 | 26 | 34 | 90 | 200 | 2 | 3 | 50 | 75 | 80 | 120 |
| 32 | 32.5 | 42 | 110 | 250 | 1.5 | 2.3 | 40 | 60 | 64 | 96 |
| 40 | 40.8 | 51 | 130 | 250 | 1.5 | 2.3 | 30 | 45 | 48 | 72 |
| 50 | 51 | 63 | 175 | 350 | 1 | 1.5 | 28 | 42 | 44 | 66 |
| 65 | 65.3 | 81 | 200 | 410 | 1 | 1.5 | 24 | 36 | 38 | 57 |
| 80 | 80 | 96 | 205 | 450 | 1 | 1.5 | 18 | 27 | 28 | 42 |
| 100 | 100 | 118 | 230 | 560 | 0.8 | 1.2 | 16 | 24 | 26 | 39 |
| 125 | 125.5 | 147 | 280 | 660 | 0.6 | 0.9 | 12 | 18 | 20 | 30 |
| 150 | 150 | 172 | 320 | 815 | 0.6 | 0.9 | 10 | 15 | 16 | 24 |
d – inside diameter; d1 – outside diameter; Rmin – minimum bending radius; Pw – maximum working pressure at 20 °C; Pt – test pressure.
Temperature correction factor Kt
The working pressure in the table is the maximum permissible pressure at room temperature. At higher temperatures it is calculated as:
Prt = Pr × Kt (bar)
| Temperature (°C) | -200 | -150 | -100 | -50 | 0 | 20 | 50 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 550 | 600 | 650 | 700 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kt | 1 | 1 | 1 | 1 | 1 | 1 | 0.95 | 0.83 | 0.75 | 0.69 | 0.65 | 0.61 | 0.58 | 0.56 | 0.54 | 0.53 | 0.52 | 0.34 | 0.19 | 0.1 |
Example: DN 50 hose with one braid, flow without shocks or vibration, temperature 300 °C: Pwt = 28 × 0.61 = 17.08 bar.
Ordering
When ordering please state: hose type, nominal size (DN), nominal length, type, size and material of the end fittings, medium, working pressure and working temperature.