¿Qué son las válvulas?
This article will help you provide a good understanding of How to choose valve material. Different types of valves include gate, globe, butterfly, plug, check, diaphragm, control, pinch valves etc. each type of valve has model numbers with different functional capabilities and features. Some of the valves are self-operated or they are operated with hydraulic, pneumatic or actuator. Engineers must know flow media, flow velocity and the intended purpose when selecting valves that are used in high pressure circuits.
Cómo elegir el material de la válvula
Un diseño adecuado requiere mucha consideración, especialmente al especificar los componentes que conforman estos tipos de sistemas de válvulas. La selección de válvulas es muy crítica y un aspecto clave de este proceso de selección es la comprensión de los materiales utilizados en la válvula. Esto tiene un impacto a largo plazo en las válvulas y en el rendimiento general del sistema.
1. Establishing the parameters
When engineers select the valves used in a high pressure circuit it requires functions of those valves that match the choices. Flow media, velocity, pressure and the specific kind of valves are the key parameters. It will help to direct the engineers towards the right material to the valves. Beyond all these parameters the engineers today are also turning their attention to the valve materials.
2. Materials that play nicely
Understanding the materials’ incompatibilities are crucial. These are for those parts of the valves that come into direct contact with the media flow.
3. Tipo y tamaño de válvula
Choosing the right valve type and every valve needs to perform more than one or more functions such as: Shut flow, mix flow, divert flow, pressure relief, and adjust flow and backflow prevention
4. Materiales de construcción
Knowing the comp ability of chemical requirements. The valve materials are needed to be compatible with liquids or gasses that are flowing through it. Plastic valves resist with the corrosive and harsh chemicals that are better than metal valves. Common materials that are used for valve making includes ductile iron, bronze and brass, Monel, Inconel and stainless steel.
5. Rendimiento
Determinar los requisitos de temperatura y presión. Se deben encontrar los rangos de presión y temperatura cuando se instala la válvula. Las válvulas de metal son las mejores ya que tienen una temperatura más alta que las de plástico. Estas también son mejores para gases presurizados y, por lo tanto, son más resistentes.
6. Mantenimiento
Asegúrese de considerar el mantenimiento. Las opciones de válvulas deben incluir y prestar atención a los requisitos de mantenimiento. Esto es muy importante tanto para la estabilidad de la aplicación como para la fiabilidad de la válvula.
Challenge in choosing valve material
The challenge in making the material choice is very important because the chosen material fits the application. Very important thing to be concerned about the working condition is to know that the temperature and pressure ratings for the working media is to check erosion and corrosion properties. Engineers that are assigned to choose valve material should be always familiar with the ASME B16.34 standard requirements. ASME codes are accepted worldwide.
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