Recently, Jinbin valve has completed the production of 6 pieces DN1600 knife gate valves and DN1600 butterfly buffer check valves. This batch of valves are all casted.

In the workshop, workers, with the cooperation of hoisting equipment, packed the knife gate valve with a diameter of 1.6m and the butterfly buffer check valve with a diameter of 1.6m respectively into the packaging truck, and then exported to Russia.

This batch of valves received the third-party inspection. In order to ensure the safety and reliability of the valves, in addition to the strength test of the valves at the test pressure of 1.25 ~ 1.5 times the nominal pressure before leaving the factory, the external quality and internal quality of the blanks were also inspected. Our valve has passed the third-party casting, material, pressure and other tests, and has successfully passed the test.

The customer’s requirements are relatively high. The surface of the casting is required to be smooth and clear, especially with dense structure, and there shall be no defects such as pores, shrinkage cavities, looseness, cracks and sand wrapping. In order to meet the above requirements, a series of process measures shall be taken during casting, such as selecting molding materials with high fire resistance and controlling the moisture content of molding sand. During molding, it shall be compacted in layers to ensure the hardness of sand mold, adopting reasonable pouring and riser system and strictly controlling pouring speed and temperature. Anyway. Due to the high technical requirements, the casting process of the valve is more complex than that of ordinary castings. In order to obtain qualified product quality, the corresponding castings need heat treatment to eliminate the stress in the casting process. At the same time, X-ray, magnetic particle flaw detection, penetrant inspection and other detection methods are used.

Jinbin valve is a valve manufacturer engaged in professional R & D, production and sales, integrating science, industry and trade. It mainly produces knife gate valve, penstock gate, slide gate valve, goggle valve and other products of multiple specifications. Over the years, the valve company has focused on the field of valve manufacturing and adhered to independent innovation.