The automatic return valve has high product requirements and has long been monopolized by imported valve products. Beijing Aerospace Power Research Institute relied on technology accumulation and product advantages in the field of special valves to improve and optimize product structure and performance, and ultimately achieved alternative imports, laying the foundation for the market expansion of the product and other special valve products to enter the LNG industry.

Recently, the automatic control return valve product of the Beijing Aerospace Institute of Aerospace Propulsion Technology Research Institute was successfully contracted for the demonstration project of PetroChina LNG production, marking a breakthrough in the LNG market application of this product and breaking the long-term monopoly of foreign products in the domestic LNG device market.

The project is a domestic demonstration project of PetroChina LNG, and it will become the largest LNG plant in China after its completion, which is of great significance to China's optimization of energy structure, ecological environment protection, and promotion of national economic and social sustainable development.