Cast valve body for pumping valve

Abstract

The invention relates to a cast valve body of a pumping valve. The cast valve body comprises a valve body, transverse flow passages, a flow passage opening and an auxiliary flow passage, wherein six transverse flow passages are designed in the valve body; two transverse flow passages are arranged in the middle and are designed up and down, namely one is an upper transverse flow passage, and the other one is a lower transverse flow passage; the four transverse flow passages on the two sides of the valve body are a first transverse flow passage, a second transverse flow passage, a third transverse flow passage and a fourth transverse flow passage respectively; the first transverse flow passage, the second transverse flow passage, the third transverse flow passage and the fourth transverse flow passage are provided with five annular grooves respectively, namely first, second, third, fourth and fifth annular grooves. The cast valve body has the advantages of simple design, convenience in use, skillfulness, rationality, convenience in casting, rational and compact structure, convenience in use and maintenance, safety, energy conservation, long service life and capabilities of greatly improving the casting qualification rate and reducing the casting cost.

Description

technical field [0001] The invention relates to the field of valve body castings, in particular to a casting valve body of a pumping valve. Background technique [0002] The cast valve body of the pumping valve is mainly used in large-scale concrete machinery pumping systems, and the casting process is very demanding. In recent years, domestic concrete machinery has been continuously developed in the process of adjustment. Concrete machinery products have high entry barriers and gross profit margins, and have attracted many companies to participate. Concrete machinery products not only have high technical thresholds, but also have extremely high requirements for quality, stability, and after-sales service guarantee. In building construction, concrete pouring is a job with extremely strict time and process requirements. Once started, continuous operation is required. If there is a long-term interruption due to failure, it will cause construction quality problems and bring imm...

AI Technical Summary

Problems solved by technology

In building construction, concrete pouring is a job with extremely strict time and process requirements. Once started, continuous operation is required. If there is a long-term interruption due to a fault, it will cause construction quality problems and bring immeasurable losses.

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