liquid ammonia pump

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    Canned electric pump / ammonia pump 50P / 40P-40

    The shielding sleeve of the shielded electric pump, that is, the stator shielding sleeve and the rotor shielding sleeve, is used to prevent the transmission medium from infiltrating the stator winding and the rotor core. However, due to the presence of the shielding sleeve, the gap between the stator and the rotor of the motor is increased, resulting in Eddy current is generated in the shielding sleeve, which causes the performance of the motor to decrease and the power loss to increase. In order to reduce the power loss, the inner diameter of the stator of the shielded motor is usually small, and the wall thickness of the shield sleeve is as thin as possible. The shield sleeve material is made of non-magnetic material. Therefore, the shielded motor is usually a slender structure. The shield sleeve materials are mostly 304, 304L, 316. 316L stainless steel. Although Hastelloy C and titanium materials have small eddy current losses, they are costly, so they are rarely used. The thickness of the shielding sleeve is generally 0.2 to 1 mm.

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