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วาล์วผีเสื้อ

  • Lugged Fully PTFE-Lined Butterfly Valve
    วาล์วผีเสื้อบุ PTFE แบบเต็มตัวพร้อมสลัก
    ขนาด: 6" (DN150)
    ระดับแรงดัน: 150 ปอนด์ (ASME B16.5)
    วัสดุหลัก:
    ตัวถัง: ASTM A395 (เหล็กเหนียว)
    แผ่น: ASTM A351 CF8M (สแตนเลส 316) พร้อมเคลือบ PTFE
    ก้าน: สแตนเลสสตีล AISI 316
    ที่นั่ง: PTFE เสริมแรง (โพลีเตตระฟลูออโรเอทิลีน)
    การทำงาน: ขับเคลื่อนด้วยคันโยก
    การเชื่อมต่อปลาย: ขันสกรู (เป็นไปตามมาตรฐาน ASME B16.5)
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  • Replaceable Cartridge Seat Wafer Butterfly Valve
    วาล์วผีเสื้อเวเฟอร์ที่นั่งตลับหมึกแบบเปลี่ยนได้
    ภาพถ่ายแสดงข้อมูลจำเพาะดังต่อไปนี้
    ขนาด: 2.5″
    เรตติ้ง: 125 ปอนด์
    ตัวถัง: เหล็กเหนียว ASTM A536
    แผ่น: ASTM A536 เหล็กเหนียว 65-45-12
    STEM: SS416 ไม่มีหมุด
    เบาะนั่ง: EPDM
    การทำงาน: ด้ามจับคันโยก
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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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