A parallel slide gate valve is a kind of valve. It is designed to transmit flow through a piping system. Unlike other válvulas de compuerta, this type is easy to install and requires little space along the pipe axis.
Esta válvula se utiliza en la industria química, la industria del petróleo y la industria del gas natural. Por lo general, estas válvulas están forjadas, pero también pueden ser fundidas. Están hechos de metales endurecidos y son adecuados para aplicaciones de flujo de fluidos tanto de encendido como de apagado.
Estas válvulas tienen una alta durabilidad y son muy sencillas de limpiar. Sin embargo, deben abrirse y cerrarse con cuidado. Debido a la naturaleza del mecanismo de sellado, es importante asegurarse de que el asiento esté bien asentado. Si el asiento se deforma, la presión del fluido puede provocar una fuga.
Are Parallel Slide Gate Valves Easy to Operate?
Las válvulas de compuerta deslizante paralelas son muy fáciles de operar. Pueden ser operados por volante, actuadores neumáticos o motores eléctricos. Usando el volante, el operador aplica torque al vástago.
Como resultado, las características operativas de la válvula son similares a las de otras válvulas de compuerta. Esto se debe a que la válvula opera con poca energía, lo que hace que el proceso de bombeo sea más eficiente.
Hay muchas ventajas de usar una válvula de compuerta deslizante paralela. Uno de los más significativos es su capacidad para sellar sobre una superficie completa. Otra ventaja es su capacidad para hacerse a prueba de incendios.
¿Cómo funciona una válvula de compuerta deslizante paralela?
Las válvulas de compuerta deslizante paralelas se utilizan para controlar el flujo de líquidos en los sistemas de tuberías. Proporcionan aislamiento de un sistema de tuberías y se usan comúnmente en industrias químicas y de generación de energía. Las válvulas pueden ser accionadas por motores neumáticos o eléctricos. Su diseño compacto los hace adecuados para su uso en tuberías.
La válvula está diseñada para mantener su sello en condiciones de alta y baja presión. También es adecuado para el servicio a temperaturas muy altas. También se proporciona un diseño antiestático. También se utiliza una junta de grafito flexible para un diseño a prueba de incendios.
Los resortes de la válvula mantienen el asiento aguas arriba y aguas abajo en contacto deslizante. Esto reduce el par de operación. Cuando se libera la presión, el asiento de la válvula se restablece automáticamente. De esta forma se consigue una estanqueidad en toda la superficie.
Where Are Parallel Slide Gate Valves Used?
A parallel slide gate valve is a type of valve used to control fluid flow in a piping system. The valve is made of two discs that are connected through a stem.
It is mainly used for regulating fluid flow in oil and gas applications. These types of valves are easy to disassemble, clean, and repair.
A parallel slide gate valve can be driven by an electric motor or a handwheel.
Normally, the handwheel is placed above the stem and the valve can be operated manually, pneumatically, or electro-hydraulically.
Moreover, parallel slide gate valve applications include the following:
1. Power Generation
Parallel slide gate valves find extensive applications in power plants, particularly in steam and water systems.
They play a crucial role in regulating and isolating fluid flow within power generation processes, ensuring efficient and controlled operation.
2. Industria del petróleo y el gas
In the oil and gas sector, parallel slide gate valves are employed for various purposes, including flow control and isolation in pipelines.
Their robust design and reliable performance make them suitable for handling the challenging conditions often encountered in oil and gas operations.
3. Refining and Petrochemicals
In refining and petrochemical facilities, parallel slide gate valves are utilized for controlling the flow of different fluids in refining processes.
Their ability to handle high temperatures and pressures makes them well-suited for applications where precise control and tight shut-off are essential.
4. Water Treatment Plants
Parallel slide gate valves are integral components in water treatment plants.
They are employed for regulating the flow of water in different stages of the treatment process, ensuring effective treatment and distribution of clean water to various points in the system.
5. Chemical Processing
Chemical plants often use parallel slide gate valves for managing the flow of various chemicals and fluids in different stages of the production process.
The valves’ design allows for reliable and precise control, contributing to the efficiency and safety of chemical processing operations.
6. Sistemas de climatización
Heating, ventilation, and air conditioning (HVAC) systems incorporate parallel slide gate valves for controlling the flow of air, water, or other fluids.
These valves help in maintaining optimal conditions within HVAC systems, contributing to energy efficiency and temperature control.
7. Marine and Shipbuilding
In marine and shipbuilding applications, parallel slide gate valves are utilized for controlling fluid flow in different systems onboard vessels.
Their durable construction and ability to withstand harsh marine environments make them suitable for marine engineering.
8. General Industrial Applications
Parallel slide gate valves find widespread use in various industrial settings where precise flow control, reliable shut-off, and durability are paramount.
Their versatility makes them valuable in diverse applications across different industries, contributing to efficient and safe fluid-handling processes.
Types of Slide Parallel Gate Valves
There are several kinds of parallel slide gate valves. These depend on torque force to wedge the disc into the valve body.
Moreover, common types of slide parallel gate valves include rising stem and non-rising stem variations.
El rising stem design features a stem that moves upward when the valve is opened, providing a visual indication of the valve’s status.
In contrast, non-rising stem valves have a stem that remains stationary while the gate moves.
Both types are available with various materials and configurations to suit different applications, offering reliable performance in industries such as power generation, oil and gas, water treatment, and more.
Are Slide Parallel Gate Valves Easy to Install?
Generally, parallel-slide gate valves are compact and easy to install. Their elongated stem prevents thermal deformation and ensures strong sealing.
With their wide flat seating, they minimize the effect of minor damages on the surface.
Parallel slide gate valves are often used for applications requiring high differential pressure.
However, they are not recommended for service under hazardous conditions.
Conclusión clave
Parallel slide gate valves are pivotal in industries like power generation, oil and gas, and water treatment.
They come in rising and non-rising stem variations, providing flexibility for diverse applications.
The rising stem offers visual indication, while the non-rising stem caters to space constraints.
Both types boast robust construction and versatility, making them reliable choices for controlling the flow of liquids in critical processes, ensuring operational efficiency and durability in demanding environments.
