Industrial Valves Blog
About valve, fluid, project, industry information.
Ball valve
The ball valve is evolved from the cock valve. Its opening and closing part is a sphere, which rotates 90 degrees around the axis of the valve stem to achieve the purpose of opening and closing. Ball valve is mainly used to cut off, distribute and change the direction of medium flow in pipeline. The ball valve with V-shaped opening also has good flow regulation function.
Continue reading “Advantages and Disadvantages of Ball Valves”
Advantages and Disadvantages of Gate Valves
Gate valve refers to the valve whose closing part (gate) moves vertically along the axis of the passage. It is mainly used as cutting medium in the pipeline, i.e. fully open or fully closed. Generally, gate valve can not be used as flow regulation. It can be applied to low temperature pressure can also be applied to high temperature and high pressure, and according to the different material of the valve. But gate valves are generally not used in pipelines for conveying mud and other media.
Continue reading “Advantages and Disadvantages of Gate Valves”
Shanxi discovered 2.437 billion tons of coal resources last year
Reporters recently learned from the Shanxi Provincial Department of Natural Resources that the province has vigorously implemented geological prospecting operations in recent years. Last year, 2.437 billion tons of coal resources were newly discovered, far exceeding the same period of coal production.
Shanxi is known as “Coal Sea”. According to estimates, the coal-bearing area of Shanxi Province is 57,000 square kilometers, Continue reading “Shanxi discovered 2.437 billion tons of coal resources last year”
Emerson (NYSE: EMR) today(Dec 12th, 2018) announced it has acquired Advanced Engineering Valves (A.E. Valves), a leading manufacturer of innovative valve technology that helps LNG customers operate more efficiently. The transaction will enable Emerson, a global leader in automation solutions and technology, to provide its customers with the world’s broadest portfolio of valves to improve process performance and reliability. Terms of the deal were not disclosed.
The addition of A.E. Valves supports Emerson’s Main Valve Partner™ initiative to be the premier supplier of final control solutions for the LNG industry, and complements its Vanessa triple-offset valve range to create a single technology leader for process isolation in critical cryogenic and severe service applications.
Taboos and Measures of Drainage Valve Pipeline Construction
1: The main materials, equipment and products used in construction are short of technical quality appraisal documents or product certificates that meet the current standards issued by the state or ministry. Consequences: The quality of the project is not up to standard, there are hidden dangers of accidents, can not be delivered on time for use, must be repaired, resulting in delays in the construction period, increased investment in labor and materials. Measures: The main materials, equipment and products used in water supply, drainage and heating and sanitation projects shall be technical quality appraisal documents or product qualification certificates issued by the state or ministry in accordance with the current standards; the product name, model, specifications, national quality standard code, date of departure, name and location of the manufacturer, inspection certificate or code of the manufacturer shall be marked.
2: The necessary quality inspection is not carried out before the valve is installed. Continue reading “Taboos and Measures of Drainage Valve Pipeline Construction”
I. Reasons for Rust of Stainless Steel Valves
To test whether stainless steel valves will rust, we can put the same valves in different environments to verify and compare. Generally speaking, if stainless steel valves are placed in relatively dry environments, after long time, the valves are not only as good as new, but also not rusty. But if the valves are placed in seawater containing a lot of salt, they will rust in a few days. Therefore, the corrosion resistance and stainless of stainless steel valves also need to be limited by the use environment. In addition, from the characteristics of stainless steel valve itself, it is stainless because there is a layer of chromium-rich oxide film on its surface to prevent particles such as oxygen atoms from invading and damaging objects, which makes it stainless. But when the film is destroyed by environmental factors, as oxygen atoms enter and iron ions free, stainless steel valve will produce rust.
Continue reading “Reasons for Rust of Stainless Steel Valves and Solution for Anti-rust”
Several Reasons and Preventive Measures for Flame and Explosion of Oxygen Valve, Pipeline Valve
With the increase of oxygen consumption, oxygen pipelines are used for transport large oxygen. Owing to the long pipeline and wide distribution, combined with the quick opening or quick closing of valves, accidents of combustion and explosion of oxygen pipelines and valves occur from time to time. Therefore, it is essential to comprehensively analyze the hidden dangers and dangers of oxygen pipelines and cold valves and take corresponding measures.
TISZAUJVAROS, Hungary—Mol Group and Thyssenkrup Industrial Solutions have signed an agreement to establish a polyol complex in Tiszaujvaros.
The manufacturing complex is planned to be operational by the second half of 2021. The firms said ground works and basic construction activities are set to begin in the fourth quarter of 2018.
The complex will have a polyether polyol production capacity of 200,000 metric tons per year when fully operational and will represent a $1.4 billion investment. Mol said the project represents its largest investment.
Mol Group is an integrated, international oil and gas company, headquartered in Budapest, Hungary. It is active in more than 30 countries with a dynamic international work force of 26,000 people. The firm operates four refineries and two petrochemicals plants under integrated supply chain management in Hungary, Slovakia and Croatia. It also owns a network of nearly 2,000 service stations across nine countries in Central and Southeastern Europe.
Thyssenkrupp is a diversified industrial group with a growing share of capital goods and service businesses and traditional strengths in materials. The firm employs 158,000 in 79 countries with sales of about $48.3 billion
Sep 19th, 2018
In recent years, the requirement of energy saving and emission reduction has been increasing and strictly implemented, so many people believe that the application of cupola is declining day by day, and it is an irreversible trend to be replaced by induction furnace. In reality, a large number of cupolas have been banned, and the wind that cupolas will be completely withdrawn from the field of foundry is also very noisy.
Is the cupola really useless? Where on earth has it been criticized by the public? Faced with a comprehensive ban, who in the world did the cupola provoke?
Cancellation of cupolas in SMEs does not affect their importance
Continue reading “Environmental cupola is still energetic： STATE OF THE U.S. CUPOLA INDUSTRY”
Technical Requirements for Boiler Forging Valves
1. Forging raw material should be accompanied by quality certificates (also known as quality assurance certificates). Supplementary inspection should be carried out when there is no quality assurance certificate. Only those who are qualified can be put into production.
2. Forging pieces (referring to raw materials for forging) may be rolled (e.g. round steel) or ingots. If the forged blank is rolled, its surface quality and chemical properties will be improved.
Continue reading “Technical Requirements for Boiler Forging Valves-Raw Material”