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Structural Features YCB stainless steel circular pump adopts internationally the most advanced pump that continuous contact with a little gear, that is, double arc plus sinusoidal compound into a tooth, can be completely eliminated involute gear pump. Won the national major scientific and technological achievements project, and won the third prize of progress of science and technology by the State Education Commission. YCB arc pump in the meshing between the two teeth for a little continuous contact, will not produce trapped oil phenomenon, completely solve the involute gear pump oil pump phenomenon led to vibration, noise, bearing load increases and so on. Therefore, circular gear pump with efficiency, low noise, and has a good energy saving effect. This series of gear pump gear, shaft, pump body, pump cover, bearing sleeve, shaft seal and other components. Gear with double arc sinusoidal tooth shape manufacturing. Compared with the involute gear, the most outstanding advantage is that there is no relative sliding of the tooth profile during gear meshing. Therefore, the tooth surface has no wear, smooth operation, no liquid trap phenomenon, low noise, long service life and high efficiency. YCB arc pump to get rid of the shackles of the traditional design, making the gear pump in the design, production and use of a new field has entered YCB stainless steel arc pump with safety valve as overload protection, safety valve full back pressure pump rated discharge pressure 1.5 times. Can also be allowed to discharge pressure within the scope of the actual need to be adjusted. But note that the safety valve can not be a long-term work of the valve, if necessary, can be installed separately in the pipeline. YCB stainless steel arc pump shaft seal is designed in two forms, one for the mechanical seal, one is the packing seal, according to the specific use and user requirements identified. Uses YCB series stainless steel arc gear pump is mainly used in a variety of mechanical equipment in the lubrication system for conveying lubricants for conveying viscosity of 5 × 10-6 ~ 1.5 × 10-3m2 / s (5-1500cSt), the temperature at Lubricated oils below 200 ° C. YCB series stainless steel arc pump, can transport non-lubricating oil, beverages, corrosive liquids. Equipped with copper gear can deliver low-point liquid, such as gasoline, benzene and so on. In addition to this series of pump configuration common motor, but also according to user needs with the specifications of the explosion-proof motor configuration.