BAOYI axial-flow check valve has the features of cut-through passageway, streamline opening-closing parts, compact structure and flexible action, and the product design can meet such relevant standards as ASME B16.34. Generally, the product can be widely applied as the automatic control equipment for preventing medium backflow in the pipelines for petroleum, chemical product, natural gas, water conservancy, etc.

·The streamline medium flow pass has small fluid resistance;
·The valve clack can be opened under small differential pressure;
·With the features of stable closure and obvious shock absorption & noise elimination, the product can effectively reduce water attack phenomenon;
·With guiding mechanism, the streamline valve clack can be reliably and flexibly opened and closed;
·The valve clack is provided with spring for return assistance, thus to realize more sensitive non-return response;