The main sealing sites for the valve are: the anastomotic surface between the start-up and valve base, the fit of the filler to the stem and filler letter, and the connection between the valve body and the valve cover. The leak at the head is called endoleak and it directly affects the ability of the valve to truncate the medium and proper operation of the equipment.

On March 4, 2020, the Standing Committee of the central political office convened to propose that public health services and emergency material support field inputs should be increased to accelerate progress in the construction of new infrastructure, such as 5g networks and data centers.

Coal, oil, natural gas and other fossil energy is the main body of energy consumption in today's society. With the continuous increase of total consumption, it is facing the dilemma of decreasing reserves, increasing mining difficulty and increasing marginal cost of production.

With the continuous advancement of China's industrialization, the demand for pump and valve manufacturing industry is growing, and the industry has a broad development prospect. At present, the low-end field of China's pump and valve industry has basically realized localization, and the middle and high-end fields have gradually replaced imported products with advantages such as cost and service.

Domestic valve VS imported valve, how would you choose? As the saying goes: "The moon is the hometown Ming", but now more and more people are advocating foreign products. In the industrial field, this trend has slowly spread. Let's just talk about an ordinary valve. With the same material and the same function, the price of imported goods can just be doubled. Imported valve products have established their own distinctive style in price, but even if they are expensive, the Chinese are still eager for them.