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  • COVNA Been Invited to Visit PUMPS & VALVES ASIA 2018 in Thailand

    On June 6, 2019, the PUMPS & VALVES ASIA 2018 sponsored by UBM of Thailand was successfully held as a professional pump and valve exhibition in Southeast Asia. The two major themes–New Energy and Environmental Protection have greatly enhanced the influence of the exhibition in Southeast...
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  • JAZZY Visited Singapore International Water Week 2019

    After visiting the PUMPS & VALVES ASIA 2019 held in Thailand, JAZZY team once again flight to the Garden City-Singapore to visit the Singapore International Water Week 2019 from 9th to 11th July held by PUB every two years. It is one of the world’s high-profile water treatment industry ...
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  • ECWATEC Russia

    This early autumn, the team of JAZZY set off again from the headquarters in China. After a 10-hour longflight, they arrived in the Russian capital Moscow with great excitement. On this trip, we visited old customers who have been cooperating for many years and carry out a series of commercial and...
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  • Market Prospect Of Safety Valve

    A valve is a mechanical device for regulating the flow of a liquid or gas in a process flow. Safety valve is a protection failure, its purpose is to ensure the safety of the pipeline. For example, a pressure relief valve (PRV) as one kind of safety valve that automatically releases material from ...
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  • Industrial Valve Market In Africa

    The valve is the industrial or the household pipeline system uses in the flow regulation and the control device. Among them, the industrial valve market is divided according to its application in industry, namely: Oil and natural gas, chemical industry, municipal, electric power and mining and ot...
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  • VALVE WORLD EXPO

    JAZZY will visit the VALVE WORLD Expo from 19-20 June 2019 in Houston of USA   Be a part the worlds’ premier valve event and network with the leading minds driving ahead innovation and excellence in the fields of valve manufacture, use and maintenance. Valve World is a dynamic and interactiv...
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  • Ball valve detailed introduction and application field

    Ball valve (ball valve) appeared in the 1950 s, with the ball valve with the rapid development of science and technology, continuous improvement of production technology and product structure, in just 40 years, has rapidly developed into a kind of main valve class. In western developed industrial...
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  • Valve industry – new and high technology development trend and investment direction

    With the development of science and technology, the domestic valve industry is also developing towards high technology content, high parameter, high corrosion resistance and high life. According to the analysis of domestic and foreign valve technology and the analysis of domestic and foreign valv...
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  • China will become the world’s largest importer of centrifugal pumps

    By 2020, China’s imports of centrifugal pumps will reach a staggering $5 billion, with a vertical mixer overtaking the us $4.9 billion as the world’s largest importer of centrifugal pumps, according to projections. Japan, India, Germany and France are among the three to six imports of...
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  • The Necessary Protective Measures Bi-directional Butterfly Valves

    1. The bolts that welded on the valve discs should not be too long, otherwise they will press against the flow port of the valve. Thus the sealing surface will be raised and the valves can not have good sealing performance.   2. When valves are under assembly, the inspection should be done o...
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  • Colorful Valves

    Our company produces various valves. We can produce according to customers’ requirements, for instance: painting. The valves can be painted in a variety of colors, pieced together into a colorful rainbow.   Now, let us introduce painting procedures to you: 1. Before painting, the outsi...
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  • Piston check valve

    Product details:Lift check valve Size: DN300 Pressure: PN40 Material: LCB Connection: Flange end The lift check valve is a valve that prevents the back flow of the pipeline medium. It is mainly composed of valve body, valve seat, valve disc, valve cover and other related components. The function...
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