Cryodynamics line of submerged motor cryogenic pumps and expanders incorporates the safest design for rotating equipment in the industry. By combining the pump and motor onto a common shaft, all issues of misalignment and coupling failures are eliminated. The motor is submerged in the oxygen-free cryogenic liquid, removing the potential for ignition; therefore, the amount of electrical components that are installed within the hazardous area is minimized. Additionally, there is no need for rotating seals, thereby eliminating a source for leaks. This allows our design to safely accommodate caustic chemicals such as ammonia. In addition, rotating components are contained within casings that are submerged within a secondary tank or vessel, further protecting personnel from potential hazards. Our expanders feature a radial in-flow runner that greatly decreases the runaway speed to well within acceptable mechanical limits, reducing the possibility of physical damage.
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