vacuum insulate hose/Liquid nitrogen hose

Flexible Metal Hose >> Liquid nitrogen hose



Liquid nitrogen hose / Vacuum insulate f
lexible hose / Thermal insulate hose

Application:

Liquid nitrogen hose / Vacuum insulate hose is mainly applied to: low temperature tank car filling and unloading process; 
Connection transformation between low temperature storage tank and cryogenic liquid equipment; 
Conversion between vacuum low temperature hose/pipe and cryogenic liquid equipment; 
Other places with special technology and process requirements.


Characteristics:
Characteristics of high vacuum multiple layer adiabatic low temperature hose:

Using the special customized double layer stainless steel metal hose, sandwich special multiple layer insulation composite
material and keep high vacuum, cooling effect is good, in the process of using the hose outside surface is not sweating, no frosting;

• support between internal and external tubes with minimal thermal conductivity

Small bending radius, easy to use, the length can be customized according to the requirements of the user.

 

• it can be connected to a vacuum pipe.

In order to reduce the loss of vaporization, the two ends of the vacuum hose can be connected to the flange or the tank and the special
quick fitting joint of the tank car.
 

Special required vacuum hose can be customized



Specifications: 

Specifications and main technical parameters of low temperature Liquid nitrogen hose vacuum hose & pipes

 

Sizemm)

DN15

DN20

DN25

DN32

DN40

DN50

DN65

DN80

DN100

Inner Tubemm)

Φ15

Φ20

Φ25

Φ32

Φ40

Φ50

Φ65

Φ80

Φ100

Out Tubemm)

Φ50

Φ65

Φ65

Φ65

Φ80

Φ100

Φ125

Φ150

Φ168

Leakage of heat W/m

0.99

0.53

0.63

0.76

0.9

1.01

1.3

1.59

1.93

Working pressure

≤20MPa, Design according to the actual requirements of the user

Design temperature

-270

Conveying medium

LNGLO2LN2LArLH2LHe

Leakage rate of vacuum inter-layer  Pa·m3/s

≤1X10-10

Leakage speed of vacuum inter-layer Pa·m3/s

≤1X10-8

Vacuum degree of sealing  Pa

≤5X10-2

Vacuum degree at liquid nitrogen temperature Pa

≤5X10-3

Ambient temperature

-40~60

Opening pressure of inter-layer safety device

0.6MPa

Design basis

Related national standards and Q/NQS007-2010 "low temperature adiabatic tube"

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