China's non-pressure hot water boiler, also known as atmospheric boiler, means that the top of the boiler does not withstand the hydrostatic pressure of the heating system. That is quite a "open hot water tank."
Circulating pumps can only be installed in the hot wa…
Petrochemical pump International petrochemical pump factory mainly Switzerland Sulzer company, Japan Ebara company, Germany KSB company, the United States Gaussian company. Petrochemical pump development is the direction of large-scale, high-speed, mechatronics, pump product package, standa…
Abstract: With the development of the needs of industry and society, the number of water supply projects is increasing and the number of water pumping stations built is also increasing. However, the cost of water pumping stations is high (for example, the cost of a circulating cooling water…
Fast Group's operating indicators in 2006 hit a record high. The annual gross industrial output value (current price) and sales revenue (excluding tax) both exceeded 3 billion yuan, a year-on-year increase of more than 60%; heavy-duty transmission production and sales exceeded 240,000…
Abstract : The moisture resistance of optical fiber coating is an important guarantee for the protection of optical fiber. In this paper, the water vapor transmission rate of a certa…