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Zawory zasuwowe

  • Plumbing brass gate valve
    Zawór zasuwowy mosiężny do instalacji wodno-kanalizacyjnych
    ZDJĘCIE PRZEDSTAWIA DANE TECHNICZNE PONIŻEJ
    ROZMIAR:DN15
    OCENA:PN16
    KORPUS I MASKA: MOSIĄDZ
    PŁYTA: MOSIĄDZ
    TRZONEK: MOSIĄDZ
    SIEDZISKO: MOSIĄDZ
    NAPĘD: KOŁO
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  • Screwed bonnet gate valve
    Zawór zasuwowy z pokrywą gwintowaną
    ZDJĘCIE PRZEDSTAWIA DANE TECHNICZNE PONIŻEJ
    ROZMIAR: 2″
    OCENA:150LB
    KORPUS I MASKA: B62
    PŁYTA: B62, SOLIDNA
    TRZPIEŃ: ASTM A182 F316
    SIEDZISKO: B62
    NAPĘD: KOŁO
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  • B148 C95800 Nickel-Aluminum Bronze Gate Valve
    B148 C95800 Zawór zasuwowy z brązu niklowo-aluminiowego
    Rozmiar: 3" (DN80)
    Nominalne ciśnienie: 150LB (PN20)
    Materiały kluczowe:
    Korpus/Maska/Tarcza/Trzpień: ASTM B148 C95800 (stop niklu i brązu aluminiowego)
    Siedzisko: integralne, metal-metal
    Projekt i obsługa:
    Operacja: pokrętło ręczne
    Połączenie końcowe: kołnierz RF (podniesiona powierzchnia)
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  • PSB Forged Steel Gate Valve
    Zawór zasuwowy PSB ze stali kutej
    Rozmiar: DN65 (2½")
    Ciśnienie znamionowe: PN250 (klasa 1500)
    Materiały kluczowe:
    Nadwozie i maska: ASTM A182 F11 (kuta stal chromowo-molibdenowa, 1¼Cr-½Mo)
    Klin: ASTM A182 F11 + 13Cr Napawanie (zwiększona odporność na zużycie)
    Trzonek: ASTM A182 F6a (stal nierdzewna martenzytyczna)
    Siedzisko: Stellite 6 Hardfaced (doskonała odporność na erozję i zatarcie)
    Obsługa: pokrętło ręczne (obsługa ręczna)
    Połączenie końcowe: spawane doczołowo (BW) zgodnie z normą ASME B16.25
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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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