Abrir e fechar anormais e vazar da válvula de segurança
- Mar 07, 2022
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Opening and closing over set pressure means that the equipment is opened or closed over its set pressure. In this case, the overload protection function of the safety valve loses, and the reasons...
Método e inspeção de inspeção não destrutiva após soldagem e reparo da válvula
- Feb 27, 2022
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In the forging process of valves, there will occasionally be defects such as gas holes, porosity, and impurities, which affect the normal use of the castings, and are usually repaired by welding....
Materiais comuns para corpos de válvula e seus tratamentos térmicos
- Feb 10, 2022
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The commonly used materials for valve bodies are as follows: 1. Gray cast iron: it is suitable for low-pressure valves with working temperatures between -15℃ and +200℃ and nominal pressure...
Materiais comuns para carcaças de válvulas
- Jan 25, 2022
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Common materials used for valve housings Common housings materials for valves Standards Applicable temperature/℃ Applicable pressure/MPa Applicable media Gray cast iron -15 to...
Perspectivas de desenvolvimento e mercado de válvulas de gasodutos
- Jan 14, 2022
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With the continuous innovation of valves used for natural gas pipelines, while traditional pipeline valves continue to play their roles, many valves with new structures and new functions are...
Vantagens e padrões estruturais da válvula de esfera
- Dec 24, 2021
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Items Names Structural advantages Design Standards 1 Internally threaded ball valves, socket welded ball valves, integral ball valves and split ball valves 1. Reduced bores or...
Requisitos da API 6d e API 608 para válvulas esferais (Parte 3)
- Dec 08, 2021
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2.4 Requirements for installation and maintenance API 608 ball valves belong to process pipeline ball valves. Generally, they can be installed in the factory. If the construction site...
Requisitos da API 6d e API 608 para válvulas esferais (Parte 2)
- Nov 29, 2021
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In addition to the functions of draining and venting of the API 6D ball valve, it should also have a central cavity overpressure relief function. The DIB-2 valve seat can be used to release the overpressure...
Requisitos da API 6d e API 608 para válvulas esferais (Parte 1)
- Nov 15, 2021
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Combine engineering practice experience and clarify the difference and connection between API 6D pipeline ball valves and API 608 ball valves in terms of structural design, performance requirements and test...
Requisitos técnicos para compra de válvulas
- Oct 26, 2021
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Specifications and categories of valves 1. The valve's model should be marked based on requirements of the national standard. If it is a corporate standard, the relevant description...
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