Novas tendências em válvulas químicas
- Oct 10, 2021
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What are the new trends in chemical valves? "Peaking and neutrality of carbon" is a profound transformation of a socio-economic system. With the dual carbon goal, the domestic...
Como é fabricada uma válvula?
- Sep 25, 2021
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You may think that a valve has a few parts, simple structure and average accuracy. However, high requirements are put forward for the core sealing parts of a valve. Moreover, a valve has complicated manufacturing...
Projeto ideal de pares de vedação de válvulas de portas de cunha de grande diâmetro (Parte 2)
- Sep 13, 2021
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3.2.2 The size of the wedge The wedge is made from WCB, which is the same as the valve body and is integrally casted (Figure 4). Calculate the thickness tB of the wedge, and get the...
Projeto ideal de pares de vedação de válvulas de portas de cunha de grande diâmetro (Parte 1)
- Aug 27, 2021
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The structure and working characteristics of sealing pairs of wedge gate valves with large diameters are discussed in this article. Structure of sealing pairs of wedge electric gate valves...
Placa cego autovedação para testes hidráulicos de válvulas de pressão ultra alta
- Aug 13, 2021
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The working principle, structure, characteristics and applications of a self-sealing blind plate used in the process device of the ultra-high pressure valve hydraulic test bench are introduced...
Características estruturais e aplicações da válvula de esfera excêntrica tripla de metal
- Jul 29, 2021
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A metal seated triple eccentric ball valve is a new product, which is used in high-temperature, high-pressure and process media with more demanding conditions. 1. Structure of three kinds...
Princípio de funcionamento da válvula de segurança (Parte 2)
- Jul 13, 2021
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After the overpressure phase, the maximum relief pressure B is reached; return to the re-seat pressure C after the opening and closing pressure difference phase. The safety valve with liquid...
Princípio de funcionamento da válvula de segurança (Parte 1)
- Jun 25, 2021
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A safety valve is a protection device for boilers, pressure vessels, and pressure pipelines. It is used to prevent the pressure in the pressure equipment from exceeding the designed allowable value, thereby...
Pressão de ajuste da válvula de segurança
- Jun 10, 2021
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Safety valves are important safety accessories for boilers, pressure vessels and other pressure equipment. Their operational reliability and performance are directly related to equipment and personal...
Requisitos técnicos para válvulas para tubulações
- May 21, 2021
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The long-distance pipeline is global. It is an energy supply line from the Arctic Circle to the equator, from the mountains to the seabed, from the plateau to the desert, passing through seismic zones,...
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