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Receive the customer’s inquiries and report of failures → analyze the working conditions and failure mode → apply design optimization solutions → confirm the final design solutions → put into production → acceptance and delivery → follow up and validate

The valve is designed for applications at a pressure of 22.45mpa, max temperature of 510℃, a maximum closing pressure difference of 22.45Mpa, an inlet pressure of 20.52Mpa and an outlet pressure of 0.86Mpa in operation, a working temperature of 410℃, and an average flow rate of 8000kg/h under normal conditions (half switching time, so the flow rate is 16000kg/h on opening).

The demand for petroleum is increasing year after year, and the reserves of petroleum exploitation are decreasing year after year. The development of coal-to-oil technology has effectively alleviated this energy problem. However, the harsh environment faced by coal-to-oil makes its requirements for materials and equipment very high. As a key core component of coal-to-oil technology, the demand for one-way valves is growing rapidly, but the R&D and production of one-way valves was monopolized by Germany in the early years, the unit price is very high, and the service life is only 1 to 3 hours, all of these were seriously restricting the development of coal technology.

In order to meet the large demand for one-way valves from customers in the coal-to-oil field, Seed concentrated on researching the production technology of one-way valves and evaluated the independent production of key parts and components of coal-to-oil equipment. The achievement breaks the monopoly of overseas production and our technology made a major contribution.