Refrigerant Pumps

In Frick India hermetic pumps, the rotating part of the motor is on the same shaft as the pump’s hydraulics. This rotor is completely surrounded by a hermetically sealed can, which separates the rotor space from the stator of the canned motor. Since the motor is an integral part of the pump.

Features

• The shaft seal-free motor pump handles fluids and fluid gases hermetically, which also preserves the safe, seal-free properties of this pump.
• The rotor is guided by two hydrodynamic bearings, which are lubricated by the fluid handled and lift the rotor touch-free in operation.
• The axial forces are neutralised by a thrust balance, so that the entire rotor runs touch-free and thus also wear-free.
• The service lives for hermetic sealed pumps are high. Life-cycle costs for hermetic sealed pumps are very low.
• Due to their design, hermetically sealed pumps enable higher flow rates, heads, and pressures as compared to open-type pumps.
• Their temperature sensitivity is also much greater, which also enables special applications in the high- or low temperature ranges.
• The viscosity of the fluid handled is comparatively high for open-type pumps.
• Hermetic sealed liquid ammonia pumps offer great safety in operation.