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Zawory zasuwowe

  • 1″-600LB Jacked Gate Valve
    1″-600LB Jacked Gate Valve
    Size 1 inch (DN25)
    Pressure Class Class 600 LB (PN100 / 1480 PSI)
    Body Material Carbon Steel (ASTM A105) / Stainless Steel (A182 F304/F316) User specified
    Jacket Material Carbon Steel / Stainless Steel (same as body or separate)
    Manufacturing Process Forged Steel (Close Die Forged)
    Design Standard API 602 / ASME B16.34 / MSS SP-145
    Zobacz szczegóły
  • 3/4″-800LB-SW Bellows Seal Gate Valve
    3/4″-800LB-SW Bellows Seal Gate Valve
    Nominal Size 3/4 inch (DN 20)
    Pressure Class Class 800LB (equivalent to PN 140 ~ 160 bar, depending on standard)
    End Connection Socket Weld (SW)
    Structure Type Outside Screw & Yoke (OS&Y) / Solid Wedge
    Stem Sealing Bellows seal + auxiliary graphite packing
    Zobacz szczegóły
  • NRS Metal Seated Gate Valve (HW)
    NRS Metal Seated Gate Valve (HW)
    Valve Type Non-Rising Stem Gate Valve (Inside Screw)
    Body Material Cast Iron (ASTM A126 Class B / EN-GJL-250)
    Seat Material Bronze (Integral or renewable)
    Stem Material Brass (C36000 / C37700)
    End Connection Threaded (Female NPT per ASME B1.20.1)
    Operation Handwheel
    Zobacz szczegóły
  • 1/2″-300LB F53 Close Die Forged Gate Valve
    1/2″-300LB F53 Close Die Forged Gate Valve
    Nominal Size 1/2″ (DN15)
    Pressure Rating Class 300 (PN 50)
    Valve Type Gate Valve – Rising Stem, Solid Wedge
    Body Construction Close Die Forged, Bolted Bonnet
    End Connections NPT Female (ASME B1.20.1) / Socket Weld (ASME B16.11) / Flanged (ASME B16.5 Class 300) as specified
    Temperature Range –29°C ~ +250°C (depending on packing)
    Suitable Media Seawater, sour gas (H₂S/CO₂), chlorides, acids, high pressure oil & gas, chemical fluids
    Flow Direction Bidirectional
    Zobacz szczegóły
  • 2″-2500LB-RTJ Close Die Forged Gate Valve
    2″-2500LB-RTJ Close Die Forged Gate Valve
    Product Name Forged Gate Valve, Bolted Bonnet, Outside Screw & Yoke (OS&Y)
    Nominal Size 2″ (DN50)
    Pressure Rating Class 2500 (42 MPa / 6090 psi)
    Connection Type Ring Type Joint (RTJ) – Raised Face not applicable
    Flange Standard ASME B16.5 (RTJ groove per ASME B16.20)
    Design Standard ASME B16.34 / API 602 (for forged small bore gate valves)
    Face-to-Face Dimension ASME B16.10 – 216 mm (8.50″) for Class 2500
    Zobacz szczegóły
  • 2″-1500LB-SW F91 Bellows Seal Gate Valve
    2″-1500LB-SW F91 Bellows Seal Gate Valve
    Valve Type Gate Valve (OS&Y, Rising Stem)
    Nominal Size 2 inches (DN50)
    Pressure Rating Class 1500
    Connection Type Socket Weld (SW) Ends
    Special Design Bellows Seal (Hermetic stem sealing)
    Body / Bonnet Material ASTM A182 F91 (Chrome-Moly-Vanadium Alloy Steel)
    Zobacz szczegóły
  • 2″-300LB SS Bellow Seal SW End Gate Valve
    2″-300LB SS Bellow Seal SW End Gate Valve
    Nominal Size 2 inches (DN50)
    Pressure Rating Class 300
    Connection Type Socket Weld (SW) Ends
    Special Design Bellow Seal (Bellows Sealed)
    Body / Bonnet Material ASTM A182 F316L (Forged Stainless Steel, Low Carbon)
    Operation Handwheel (Manual) / Gearbox optional
    Zobacz szczegóły
  • DN500-PN10 Cast Iron Metal Seated Rising Stem Gate Valve
    DN500-PN10 Cast Iron Metal Seated Rising Stem Gate Valve
    • Type: Outside Screw and Yoke (OS&Y), Solid Wedge, Flanged Ends
    • Design Standard: DIN 3352
    • Face-to-Face Standard: DIN 3202 F4
    • Seat Type: Metal-to-Metal (Bronze Seated)
    Zobacz szczegóły
  • Gate valve BB RS OS&Y in bronze or brass
    Zasuwa zasuwowa BB RS OS&Y z brązu lub mosiądzu
    ZDJĘCIE PRZEDSTAWIA DANE TECHNICZNE PONIŻEJ
    ROZMIAR: 2″
    OCENA:150LB
    NADWOZIE I MASKA: C95500
    DYSK: C95500 SOLIDNY
    MOST: MONEL K500
    SIEDZISKO: MONEL K500
    NAPĘD: KOŁO
    Zobacz szczegóły
  • 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
    Zobacz szczegóły
  • 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
    Zobacz szczegóły
  • 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)
    Zobacz szczegóły

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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