1. Rubber layer of the stator with equal wall thickness is thin and uniform which can improve the heat dissipation effect when the screw pump operates and no thermal aggregation effect is produced. The temperature is one of sensitive elements affecting lifetime of the stator. The stator with equal wall thickness can slow down thermal ageing of the rubber because it has good heat dispersion, as a result, its service life is longer than that of conventional pump.
2. Uniform and thin rubber layer is with good anti-deforming capability in the operation process of the equipment, so screw pump of the stator with equal wall thickness bears high pressure based on single stage which can reduce pump level and previous excess suitable quantity of stator and rotor in case of operation under the same operating condition and operating torque and system efficiency are higher than those of conventional pump to improve pump usability.
3. Rubber of stator with equal wall thickness is with even swelling and thermal expansion which can well ensure molded lines of the pump. The pump is with good sealing property as well as good mechanical property at the moment of use and operation, making for continuous high efficiency of the pump for a long time to prolong service cycle of the pump.