HIGHFLEX Transfer Lines type 12/32

Description

Description

Standards

  • Product
    2014/68/EU; ASME on request; DIN EN ISO 10380

Key benefits

  1. Robust design including metallic braiding on all tubes for increased resistance to mechanical fatigue over 10 000 bending cycles
  2. Lines fully prepared in factory, delivered at length, terminated, tested and ready to operate
  3. Available in lengths up to 30m and diameter range from DN8 to DN150
  4. Coupling interface customized to your application
  5. Safety: 
    No cold spot
    No icing
    Double containment
    Detection of vacuum loss (optional)

Construction

Nexans HIGHFLEX is a pipe-in-pipe construction made of two corrugated stainless steel tubes. The parallel corrugation provides high flexibility for increased bendability. Design includes single-braided stainless steel armoring on all tubes for enhanced pressure stability & resistance to mechanical fatigue.

High performance thermal insulation is achieved between process and outer tubes from combined action on heat radiation, conduction and convection

  • Multilayer insulation material: multiple layers of highly reflective film separated with spacer fleece is lapped on process tube to reflect heat radiation outside of the construction
  • High vacuum is generated in the annular space and stabilized with molecular sieves and chemical getter to prevent heat convection.
  • Low loss spacer minimize contact area and subsequent heat conduction between outer and process tubes

All Nexans HIGHFLEX lines integrate a pumping module equiped with burst disks, a pumping port and a vaccum-sensing port

Nexans HIGHFLEX is available over a diameter range for the process tube from DN8 to DN150. Please consult us directly for product details on configurations larger than DN50.

Components

 

LN2

LNG

LOX

LH2

LHe

Standard terminations

+

 

 

 

 

Screw-type Couplings 28/25 and 34/32

 

 

 

 

 

Johnston couplings 

+

+

+

+

+

T pieces

Non Insulated

+

 

 

 

 

Vacuum Insulated

+

+

+

+

+

Mechanical Degassing

Non insulated 

+

 

 

 

 

Vacuum Insulated 

+

 

 

 

 

Manual cold valve

Non insulated 

+

 

 

 

 

Vacuum Insulated

+

+

+

+

+

Safety valve

+

+

+

+

+

Vacuum lock

+

+

+

+

+

Vacuum monitoring

+

+

+

+

+

 

Characteristics

Characteristics

Construction characteristics

Construction characteristics

Inner pipe material
Stainless steel 1.4404 (316L)
Outer pipe material
Stainless steel 1.4404 (316L)
Insulation
Multi-layer insulation (MLI)
Armour type
Stainless steel 1.4301

Dimensional characteristics

Dimensional characteristics

Outer tube diameter
43 mm
Approximate weight
2.2 kg/m
Inner tube diameter
12.1 mm

Electrical characteristics

Electrical characteristics

Heat inleak at -196°C
0.4 W/m

Usage characteristics

Usage characteristics

Bending radius several bends
200 mm
Bending radius single bend
75 mm
Vacuum at delivery state - warm
better than 1x101E-4 mbar, guaranteed for 2 years
Vacuum at delivery state - cold
better than 1x10E-4 mbar at LN2 temperature

Resources

Resources

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