Válvulas de gaveta

  • A FOTO MOSTRA AS ESPECIFICAÇÕES ABAIXO
    TAMANHO: 42″
    CLASSIFICAÇÃO: 600LB
    CORPO E CAPÔ: ASTM A216 WCB
    DISCO: ASTM A216 WCB+STELLITE 6, CUNHA FLEXÍVEL, PORTA COMPLETA
    HASTE: ASTM A182 F6A
    ASSENTO: ASTM A105+STELLITE 6
    ACIONAMENTO: LIMITORQUE SMC-5 480V CA, 3F, 60HZ, COM ACIONAMENTO MANUAL.
  • A FOTO MOSTRA AS ESPECIFICAÇÕES ABAIXO
    TAMANHO: 20″*16″
    CLASSIFICAÇÃO: 300LB 600LB
    CORPO E CAPÔ: ASTM A216 WCB
    DISCO: ASTM A216 WCB+STELLITE 6, CUNHA FLEXÍVEL
    HASTE: ASTM A182 F6A
    ASSENTO: ASTM A105+STELLITE 6
    ACIONAMENTO: TIPO DE MODULAÇÃO INTELIGENTE LIMITORQUE, sinal 4-20 mA, 480 V CA, 3 fases, 60 Hz, COM ACIONAMENTO MANUAL.
  • SIZE: 25A (1")
    RATING: JIS 5K
    DESIGN: API 602 12th EDITION
  • Tamanho: 2″~24”
    Classificação: 150LB
    Materiais:
    Corpo e tampa ASTM A536 65-45-12, revestidos com epóxi
    Disco revestido ASTM A536 65-45-12+EPDM
    Haste ASTM A182 F6A
    Assento de corpo integral
    Operador: volante
    Extremidades: Flange conforme ANSI B16.1
  • A FOTO MOSTRA AS ESPECIFICAÇÕES ABAIXO
    TAMANHO: 8″
    CLASSIFICAÇÃO: 600LB
    CORPO E CAPÔ: ASTM A216 WCB
    DISCO: ASTM A216 WCB+STELLITE 6, CUNHA FLEXÍVEL
    HASTE: ASTM A182 F6A
    ASSENTO: ASTM A105+STELLITE 6
    ACIONAMENTO: ENGRENAGEM
  • Valve Type Flexible Wedge Gate Valve
    Size Range ¼” to 4″ (DN8 to DN100)
    Pressure Class 150LB · 300LB · 600LB · 900LB · 1500LB
    End Connections Socket Weld (SW) · NPT · Raised Face Flange (RF)
    Body/Bonnet ASTM A105 Forged Carbon Steel
    Trim Package F6a Hardfaced
    Gate Disc A105 + Stellite 6
    Stem ASTM A182 F6a (13Cr SS)
    Seats Integral Stellite 6 overlay
    Gasket Spiral Wound SS316/Graphite
    Operation Handwheel (Standard) · Gear Operator (Opt)
  • A FOTO MOSTRA AS ESPECIFICAÇÕES ABAIXO
    TAMANHO: 8″
    CLASSIFICAÇÃO: 600LB
    CORPO E CAPÔ: ASTM A216 WCB
    DISCO: ASTM A216 WCB+STELLITE 6, SÓLIDO
    HASTE: ASTM A182 F6A
    ASSENTO: ASTM A105+STELLITE 6
    ACIONAMENTO: ENGRENAGEM
  • AS FOTOS MOSTRAM AS ESPECIFICAÇÕES ABAIXO
    TAMANHO: 16″
    CLASSIFICAÇÃO: 1500LB
    CORPO: ASTM A182 F91
    DISCO: ASTM A182 F91
    MOLA: INCONEL X-750
    HASTE: ASTM A182 F91
    ASSENTO: ASTM A182 F91 SUBSTITUÍVEL.
    ACIONAMENTO: ENGRENAGEM
  • AS FOTOS MOSTRAM AS ESPECIFICAÇÕES ABAIXO
    TAMANHO: DN200
    CLASSIFICAÇÃO: PN420
    CORPO E CAPÔ: ASTM A216 WCB
    DISCO: ASTM A182 F304+STELLITE 6, SÓLIDO
    HASTE: ASTM A182 F6A
    ASSENTO: ASTM A105+STELLITE 6
    ACIONAMENTO: RODA
  • A FOTO MOSTRA AS ESPECIFICAÇÕES ABAIXO
    TAMANHO: 8″
    CLASSIFICAÇÃO: 600LB
    CORPO E CAPÔ: ASTM A216 WCB
    DISCO: ASTM A216 WCB+STELLITE 6, CUNHA FLEXÍVEL
    HASTE: ASTM A182 F6A
    ASSENTO: ASTM A105+STELLITE 6
    ACIONAMENTO: ENGRENAGEM
  • Padrão de projeto: API 600 / ASME B16.34
    Tamanho: 16 polegadas (NPS 16)
    Classe de pressão: Classe ASME 1500 (1500 LB)
    Material do corpo e do capô: ASTM A182 F91 (aço forjado 9Cr-1Mo-V)
    Tipo de capô: vedação de pressão (autovedante)
    Conexão final: solda de topo (BW) conforme ASME B16.25
    Anéis de assento: sobreposição completa de Stellite 6 (mín. 3 mm)
    Placas de comporta: superfícies de contato com revestimento rígido Stellite 6
    Material da haste: ASTM A182 F6a (superfície nitretada HRC≥40)
    Tipo de haste: Haste ascendente (OS&Y) com design anti-rebentamento
    Embalagem: Anéis de grafite flexíveis (à prova de fogo conforme API 607)
    Junta: Anel de vedação de pressão (tipo Inconel 600 RTJ)
  • A FOTO MOSTRA AS ESPECIFICAÇÕES ABAIXO
    TAMANHO: 1″
    CLASSIFICAÇÃO: 800LB
    FIM: SW CONFORME ASME B16.11
    TEMPERATURA: -196 ℃
    CORPO E CAPÔ: ASTM A182 F304
    CUNHA: SÓLIDA ASTM A182 F304+HF
    HASTE: ASTM A182 F304
    ASSENTO: METAL HF
    ACIONAMENTO: VOLANTE

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.

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