日本語

バタフライバルブ

  • Lugged Fully PTFE-Lined Butterfly Valve
    ラグ付き完全PTFEライニングバタフライバルブ
    サイズ: 6インチ (DN150)
    圧力定格：150 LB（ASME B16.5）
    主な材料:
    本体：ASTM A395（ダクタイル鋳鉄）
    ディスク：ASTM A351 CF8M（ステンレス鋼316）、PTFEコーティング
    ステム：AISI 316ステンレス鋼
    シート：強化PTFE（ポリテトラフルオロエチレン）
    操作: レバー操作
    端部接続：ねじ込みラグ（ASME B16.5準拠）
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  • Replaceable Cartridge Seat Wafer Butterfly Valve
    交換可能なカートリッジシートウェーハバタフライバルブ
    写真の仕様は以下のとおりです
    サイズ: 2.5インチ
    定格: 125ポンド
    本体：ASTM A536 ダクタイル鋳鉄
    ディスク：ASTM A536 ダクタイル鋳鉄 65-45-12
    ステム: SS416 ピンレス
    シート：EPDM
    作動：レバーハンドル
    View details

A butterfly valve is a type of quarter-turn valve used to regulate, isolate, or start and stop fluid flow in a piping system. It consists of a circular disc or plate mounted on a rotating shaft. When the handle or actuator turns the shaft 90 degrees, the disc moves from a fully closed to a fully open position, allowing flow through the valve. The disc remains in the flow path even when open, which means there is always a slight pressure drop. Butterfly valves are known for their compact design, fast operation, and cost-effectiveness, especially in large-diameter pipelines. They come in various types, such as wafer, lug, and double or triple offset styles, depending on the pressure and sealing requirements. These valves are widely used in industries such as water treatment, HVAC, chemical processing, oil and gas, and food and beverage, due to their reliability, low maintenance, and easy installation.

What Are The Advantages Of Using Butterfly Valves Over Other Valve Types?

Butterfly valves offer several advantages that make them a preferred choice in many industrial and commercial applications. First, their lightweight and compact structure requires less space and support compared to gate or globe valves, which is especially beneficial for high-diameter pipelines. They provide quick shutoff and throttling capabilities with just a quarter-turn, resulting in faster and easier operation, whether manual or automated. Butterfly valves are generally more cost-effective in both initial investment and maintenance, as they have fewer moving parts and simple construction. Additionally, they can handle a wide range of fluids, including gases, liquids, and slurries. With advancements in sealing technologies, modern butterfly valves can achieve tight shutoff, even in high-pressure and high-temperature systems. Their versatility in materials—such as stainless steel, cast iron, and PVC—makes them suitable for corrosive or sanitary environments, depending on the application needs.

Butterfly Valves FAQ

  • 1.Are butterfly valves suitable for high-pressure systems?

    Yes, triple offset butterfly valves are designed for high-pressure and high-temperature conditions.

  • 2.Can butterfly valves be used for throttling?

    Yes, they are often used for throttling and flow regulation.

  • 3.What materials are butterfly valves made from?

    Common materials include stainless steel, cast iron, ductile iron, PVC, and carbon steel.

  • 4.Are butterfly valves bidirectional?

    Most butterfly valves are bidirectional, but performance may vary by type and design.

  • 5.How long do butterfly valves last?

    With proper material selection and maintenance, they can last many years in industrial use.

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