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  • Focus on like Huozhou heating project

    Focus on like Huozhou heating project

    Shanxi Huozhou heating center Huozhou “three supplies and one industry” heating maintenance project, Like valve participated in the project transformation in June 2020, in which “three supplies and one industry” refers to the water supply, power supply, heating and propert...
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  • Focus on Like coal mine project

    Focus on Like coal mine project

              Energy is an important material basis for the survival and development of human society. Throughout the history of human social development, every major progress of human civilization is accompanied by the improvement and replacement of energy. The development and utilization of energy ...
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  • Focus on LIKE south to North Water Transfer Project

    Focus on LIKE south to North Water Transfer Project

            On May 28, 2020, LIKE valve won the bid for the procurement project of Neixiang water supply project of Nanyang water supply supporting project in the water receiving area of South-to-North Water Transfer in Henan Province, which has contributed to alleviating the shortage of water resour...
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  • Focus on Laike, Daxing airport project documentary

    Focus on Laike, Daxing airport project documentary

    This year, with high quality and excellent manufacturing strength, LIKE valve has contributed to the construction of Daxing airport, which is known as “the first of the seven wonders of the new world”, with a total investment of 450 billion yuan. According to the actual situation of ...
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  • Corrosion resistance of common valve materials — PTFE clip glass fiber

    PTFE glass fiber is made from suspended PTFE emulsion and mixed with high performance glass fiber. Resistant to chemical corrosion, strong acid, alkali, aqua regia and various organic solvents. Low friction coefficient, high insulation, anti ultraviolet, anti-static. The strength is higher than t...
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  • Corrosion resistance of common valve materials — flexible graphite

    Flexible graphite is a kind of loose and porous wormlike material obtained by intercalation, washing, drying and high temperature expansion of natural graphite flakes. Natural graphite has excellent properties such as heat and cold resistance, corrosion resistance, self-lubricating and so on. It ...
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  • Expansion joint

    Expansion joint is also called pipe expansion joint, expansion joint, compensator and expansion joint. The expansion joint is a new product for the connection of pumps, valves, pipelines and other equipment with pipelines. It is connected by full bolts to make it a whole, and has a certain displa...
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  • Knowledge expansion I

    The pneumatic diaphragm control valve in the figure belongs to the air off type. Some people asked, why? First, look at the air inlet direction of the pneumatic film, which is a positive effect. Second, look at the installation direction of the spool, positive effect. The pneumatic diaphragm cham...
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  • Special valve for oil and gas

    In order to control oil and gas flow, special oil and gas valves should have the following basic properties: sealing, pressure strength, safety, adjustability, fluid flow and switch flexibility. For high pressure, flammable and explosive oil and gas medium, the sealing property must be solved fir...
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  • Corrosion resistance of common valve materials_ Teflon

    Polytetrafluoroethylene (Teflon or PTFE), commonly known as “plastic king”, is a polymer compound made of polytetrafluoroethylene by polymerization Except for molten alkali metal, PTFE is hardly corroded by any chemical reagent. For example, when it is boiled in concentrated sulfuric...
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  • Corrosion resistance of common valve materials — fluororubber

    Fluororubber is a kind of synthetic polymer elastomer containing fluorine atom on the carbon atom of main chain or side chain. The introduction of fluorine atom endows rubber with excellent heat resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistanc...
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  • Corrosion resistance of common materials for valves — EPDM

    Ethylene propylene rubber is a synthetic rubber with ethylene and propylene as the main monomers. According to the composition of monomers in the molecular chain, it can be divided into ethylene propylene diene monomer and ethylene propylene diene monomer. The former is a copolymer of ethylene an...
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  • Corrosion resistance of common valve materials — styrene butadiene rubber

    Styrene butadiene rubber (SBR), also known as polystyrene butadiene copolymer. The processing performance and product performance are close to that of natural rubber. Some properties such as wear resistance, heat resistance, aging resistance and vulcanization speed are better than natural rubber....
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  • Corrosion resistance of common materials for valves – NBR

    NBR is obtained by emulsion polymerization of butadiene and acrylonitrile, and NBR is mainly produced by low temperature emulsion polymerization. Excellent oil resistance, high wear resistance, good heat resistance, strong adhesion. Its disadvantages are poor low temperature resistance, poor ozon...
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  • Corrosion resistance of common valve materials – chloroprene rubber

    Neoprene, also known as neoprene, is a new flat rubber. It is mainly made of chloroprene (i.e. 2-chloro-1,3-butadiene) α- Synthetic rubber, which is produced by polymerization, is widely used in weathering resistant products, adhesive sole, coating and rocket fuel. It is flame resistant, sunlight...
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  • Corrosion resistance of common valve materials——Natural rubber

    Natural rubber Natural rubber natural rubber is a kind of natural high molecular compound with polyisoprene as the main component. Its molecular formula is (c5h8) n. 91% ~ 94% of its components are rubber hydrocarbons (polyisoprene), and the rest are non rubber substances such as protein, fatty a...
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