The utility model belongs to low temperature loading and unloading equipment technical field discloses a kind of low temperature
fluid loading and unloading arm, and specific technical solutions are as follows: including stand, first parking board and second parking board are installed on stand, the upper section of stand is also equipped with first purging replacement inlet, first purging replacement outlet, second purging replacement inlet, second purging replacement outlet, NG
flange joint and LNG
flange joint are installed on stand, NG
flange joint is connected with gas-phase vertical
pipe, first flange disc by multiple cryogenic rotary joints, LNG flange joint is connected with liquid-phase vertical
pipe, second flange disc by multiple cryogenic rotary joints, the utility model is combined by multiple rotary joints and pipeline, pipeline accessory, balancing device, supporting mechanism and control operation
system, for realizing the device between ground equipment and
liquid tank car Transmission liquid and gas product, it is applicable to low temperature liquid loading and unloading, rotate flexible, satisfy the use range's alignment, sealing performance is good, can bear load is big, service life is long.