Português

Válvulas de gaveta

  • Plumbing brass gate valve
    Válvula de gaveta de latão para encanamento
    A FOTO MOSTRA AS ESPECIFICAÇÕES ABAIXO
    TAMANHO: DN15
    CLASSIFICAÇÃO: PN16
    CORPO E CAPÔ: LATÃO
    DISCO: BRASS
    HASTE: LATÃO
    ASSENTO: LATÃO
    ACIONAMENTO: RODA
    Ver detalhes
  • Screwed bonnet gate valve
    Válvula de gaveta de capô aparafusada
    A FOTO MOSTRA AS ESPECIFICAÇÕES ABAIXO
    TAMANHO: 2″
    CLASSIFICAÇÃO: 150LB
    CARROCERIA E CAPÔ: B62
    DISCO: B62, SÓLIDO
    HASTE: ASTM A182 F316
    ASSENTO: B62
    ACIONAMENTO: RODA
    Ver detalhes
  • B148 C95800 Nickel-Aluminum Bronze Gate Valve
    Válvula de gaveta de bronze níquel-alumínio B148 C95800
    Tamanho: 3" (DN80)
    Classificação de pressão: 150LB (PN20)
    Materiais principais:
    Corpo/Capô/Disco/Haste: ASTM B148 C95800 (Liga de Bronze e Níquel-Alumínio)
    Assento: Integral Metal-Metal
    Projeto e operação:
    Operação: Volante
    Conexão final: Flange RF (face elevada)
    Ver detalhes
  • PSB Forged Steel Gate Valve
    Válvula de gaveta de aço forjado PSB
    Tamanho: DN65 (2½")
    Classificação de pressão: PN250 (classe 1500)
    Materiais principais:
    Corpo e capô: ASTM A182 F11 (aço forjado cromo-molibdênio, 1¼Cr-½Mo)
    Cunha: ASTM A182 F11 + 13Cr Revestimento Duro (Resistência ao Desgaste Aprimorada)
    Haste: ASTM A182 F6a (Aço Inoxidável Martensítico)
    Assento: Stellite 6 com revestimento rígido (resistência superior à erosão e corrosão)
    Operação: Volante (Atuação Manual)
    Conexão final: Solda de topo (BW) conforme ASME B16.25
    Ver detalhes

A gate valve is a type of valve used to completely stop or allow flow in a pipeline by raising or lowering a solid barrier (the gate) into the path of the fluid. It is primarily designed for on/off control rather than flow regulation. When the valve is fully open, the gate is entirely lifted, allowing unobstructed flow with minimal pressure drop. When closed, the gate seals tightly to stop flow entirely. Gate valves are most effective in systems where the valve remains either fully open or fully closed for extended periods. They are not ideal for throttling purposes because the partially open gate can vibrate, causing wear and potentially damaging the valve. These valves are widely used in water supply systems, oil and gas pipelines, and industrial applications due to their robust construction and ability to handle high pressures and temperatures. Common materials include cast iron, stainless steel, and brass, with options tailored to specific media and environments. Gate valves are known for their durability, tight sealing, and long service life, making them a preferred choice in many heavy-duty applications.

What Are The Advantages Of Using A Gate Valve?

Gate valves offer several advantages that make them a popular choice for a wide range of industries. One of the key benefits is their low pressure drop when fully open, which helps maintain system efficiency. Their straight-through flow design minimizes turbulence and energy loss. Gate valves also provide a reliable shutoff, which is crucial for isolating sections of piping during maintenance or emergencies. Because they are designed for full open or closed positions, gate valves reduce wear and extend service life when used properly. Their versatility in handling different types of fluids—such as water, steam, oil, and gas—adds to their appeal. In addition, gate valves are available in various sizes and materials, which makes them suitable for everything from household plumbing to large-scale industrial systems. They can be installed in both horizontal and vertical orientations, offering flexibility in system design. With proper installation and minimal maintenance, gate valves deliver long-term, dependable performance even in demanding environments.

Gate Valves FAQ

  • 1.What is a gate valve used for?

    It’s used to start or stop the flow in a pipeline.

  • 2.Can a gate valve be used for flow control?

    No, it’s not suitable for throttling.

  • 3.Is a gate valve better than a ball valve?

    Each has different uses—gate valves are better for isolation in large systems.

  • 4.What media can gate valves handle?

    They can handle water, oil, gas, steam, and slurry.

  • 5.How do I know if a gate valve is open or closed?

    In rising stem types, the stem position indicates the valve status.

Pressione Enter para pesquisar ou ESC para fechar

Se você estiver interessado em nossos produtos, deixe suas informações aqui e entraremos em contato com você em breve.