Liquid nitrogen hose
vacuum hose / vacuum pipe
Liquid nitrogen hose / Vacuum insulate hose is mainly applied to: low temperature tank car filling and
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 of high vacuum multiple layer adiabatic low
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
• support between internal and external tubes with minimal thermal
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
quick fitting joint of the tank car.
Special required vacuum hose can be customized
Specifications and main technical parameters of low temperature Liquid nitrogen hose / vacuum hose & pipes
|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|
|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|
|Opening pressure of inter-layer safety device||0.6MPa|
|Design basis||Related national standards and Q/NQS007-2010 "low temperature