Spiral Tube

spiral tube

SPIRAL TUBE

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spiral tube heavyspiral tube - euro inox

Spiral tube is a cost effective way of manufacturing large bore, thin walled tube.  Spiral tube is extremely versatile, a variety of diameters can be manufactured from a single slit width of coil, by changing the helix angle. Versatile in it’s application and manufactured in any lengths.


Applications of spiral tube :

  • Non product related pumping in the following industries :
    • Food and beverage
    • Pulp & paper
    • Sugar
    • Sewerage
    • Water treatment
  • Architectural
  • Structural
  • Construction

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Material : 304, 316, 409, 3Cr12
Specification : B53605, A778
Finish : DOM, Pickled and Passivated

NB : Can be used with Nominal Bore OD Fittings  & Flanges

 

Size
OD mm      

MASS (kg/m)

1.5mm (wt) 2.0mm (wt) 3.0mm (wt)
76.2 2.8 3.8
79 3 3.9
84 3.1 4.2
88.9 3.3 4.4
101.6 3.8 5.1
104 3.9 5.2
114.3 4.3 5.7
129 4.9 6.4
154 5.8 7.7
168.3 6.3 8.4
204 7.7 10.2 15.3
219.6 8.3 11 16.5
254 9.6 12.8 19.1
273 10.2 13.7 20.5
304 11.4 15.3 22.7
323 12.1 16.2 24.1
354 13.3 17.7 26.5
406 15.2 20.3 30.4
457 22.8 34.3
508 38.1
Size
OD mm      

PRESSURE RATING* (ASME 631.3, 1996)
304L/316L

MPa
1.5mm (wt)
MPa
2.0mm (wt)
MPa
3.0mm (wt)
      76.2          2.11           2.81                        
79.0 2.03 2.71
84.0 1.91 2.55
88.9 1.81 2.41
101.6 1.58 2.11
104.0 1.54 2.06
114.3 1.4 1.87
129.0 1.24 1.66
154.0 1.04 1.39
168.3 0.95 1.27
204.0 0.79 1.05 1.57
219.6 0.73 0.97 1.46
254.0 0.63 0.84 1.26
273.0 0.59 0.78 1.18
304.0 0.53 0.7 1.06
323.0 0.49 0.66 0.99
354.0 0.45 0.6 0.91
406.0 0.4 0.53 0.79
457.0   0.47 0.71
508.0     0.63
 Important Note :

Pressure Rating of Spiral Tube based on :

  • 50% of 0.2% yield strength at 40°C
  • 0.2% yield strength of 304L/316L taken as 170MPa at 40°C
  • Tube wall thickness wt taken at 90% of nominal wall thickness
  • Weld joint efficiency factor 0.7

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