Censtar gas transfer pump can work indepently

Censtar gas transfer pump have motor&suction system included in their case so every dispenser can work indepently. This means if one dispenser has problem with motor or suction line, others can still continue to work.
CNG dispensers does not have motor&suction system included in their frame so every dispenser can not work indepently. All dispensers in the station are depent on submersible pumps on the tank. this system is more like LPG systems,they are cheaper but if you have a problem in the submersible pump, all dispensers will stop to work.