Français

Vannes à guillotine

  • Plumbing brass gate valve
    Robinet-vanne en laiton pour plomberie
    LA PHOTO MONTRE LES SPÉCIFICATIONS CI-DESSOUS
    TAILLE : DN15
    NOTE : PN16
    CORPS ET CAPOT : LAITON
    DISQUE : CUIVRES
    TIGE : LAITON
    SIÈGE : LAITON
    ACTIONNEMENT : ROUE
    View details
  • Screwed bonnet gate valve
    Robinet-vanne à chapeau vissé
    LA PHOTO MONTRE LES SPÉCIFICATIONS CI-DESSOUS
    TAILLE : 2″
    COTE : 150 LB
    CARROSSERIE ET ​​CAPOT : B62
    DISQUE : B62, SOLIDE
    TIGE : ASTM A182 F316
    SIÈGE : B62
    ACTIONNEMENT : ROUE
    View details
  • B148 C95800 Nickel-Aluminum Bronze Gate Valve
    Robinet-vanne en bronze nickel-aluminium B148 C95800
    Taille : 3" (DN80)
    Pression nominale : 150 lb (PN20)
    Matériaux clés :
    Corps/Capot/Disque/Tige : ASTM B148 C95800 (alliage nickel-aluminium-bronze)
    Siège : Intégral métal sur métal
    Conception et fonctionnement :
    Fonctionnement : Volant
    Raccordement d'extrémité : bride RF (face surélevée)
    View details
  • PSB Forged Steel Gate Valve
    Robinet-vanne en acier forgé PSB
    Taille : DN65 (2½")
    Pression nominale : PN250 (Classe 1500)
    Matériaux clés :
    Corps et capot : ASTM A182 F11 (acier au chrome-molybdène forgé, 1¼Cr-½Mo)
    Coin : ASTM A182 F11 + revêtement dur 13Cr (résistance à l'usure améliorée)
    Tige : ASTM A182 F6a (acier inoxydable martensitique)
    Siège : Stellite 6 à revêtement dur (résistance supérieure à l'érosion et au grippage)
    Fonctionnement : Volant (actionnement manuel)
    Raccordement d'extrémité : Soudure bout à bout (BW) selon ASME B16.25
    View details

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.

Appuyez sur Entrée pour rechercher ou ESC pour fermer

Si vous êtes intéressé par nos produits, vous pouvez choisir de laisser vos informations ici et nous vous contacterons sous peu.