Name: 支耳蝶阀
SKU: -1

SEYMOUR

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西美尔 / 蝶阀 / 中线蝶阀 / 支耳蝶阀
支耳蝶阀
系列 L92
专业供应支耳蝶阀，采用双向气泡密封设计，符合BS EN-593和ISO05752标准，适用于造船、石化、重工业等领域。工作压力最高可达25 bar，提供DIN和ASME多种法兰连接选项。

专业供应支耳蝶阀，采用双向气泡密封设计，符合BS EN-593和ISO05752标准，适用于造船、石化、重工业等领域。工作压力最高可达25 bar，提供DIN和ASME多种法兰连接选项。

支耳蝶阀

Wafer Lug type butterfly valve, with centric disc and bonded liner.

bi-directional bubble tight shut off.

Applicable for all kinds of industries, especially shipbuilding, petrochemical, heavy industry, water treament, civil enginerring and dyeing and finishing.

Overall design generally in accordance to BS EN-593

Face to face dimension in accordance to ISO05752, DIN3202

Top flange and shaft end in accordance to ISO-5211

Working pressure from 0.1 bar absolute up to 16 bar (test pressure 17.6 bar)

Working pressure up to 25 bar (test pressure 27.5 bar) on request

Mounting between flanges to DIN PN10, DIN PN16 or ASME class 150

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Specifications

支耳蝶阀

蝶阀口径

NPS 1.5 to 24 / DN 40 to 600

阀体材质

Cast Iron, Ductile Iron, Carbon Steel WCB, Stainless Stee

工作压力

150 psi (10 Bar) of 232 psi (16 Bar) ASNI CLASS 150

阀杆材质

316 Stainless Steel

温度范围

-22°F to 320°F (-30°C to 180°C)

阀座材质

EPDM, BUNA-N, PTFE(EPDM), Viton, Silicone, Neoprene, EPT

面对面

ASME B16.10, Manufacturer Standard

蝶板材质

Stainless Steel, Alum Bronze, Ductile Iron Covered Nylon, Stainless Steel Covered F46

泄露

Zero Leakage

测试

MSS SP-61, API 598, EN 12266-1

阀体类型

支耳

执行机构

气动执行机构 or 电动执行机构

Flange Drilling

ASME B16.1 Class 125, ASME B16.5 Class 150, ASME B16.47

应用

Wastewater, Seawater, Water, other liquids and gases

Features & Benefits

Core reason

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The compression fit of the midline structure and elastic soft sealing surface (such as EPDM, PTFE) - the valve stem is centered to rotate the butterfly plate without eccentricity. When closed, the soft sealing surface is compressed by the medium pressure or the force of the actuator, forming a comprehensive and tight sealing contact with the valve seat, offsetting small errors, and achieving zero/micro leakage.

Core applicable media

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Clean and particle free fluids such as water, seawater, air, natural gas, oil products (without particles), weak acid-base solutions (pH 4-10), etc. Key adaptation logic: Soft sealing materials (EPDM/PTFE, etc.) determine medium compatibility - EPDM is resistant to water, weak acids and weak bases, PTFE is resistant to strong acids and bases but not high temperatures, avoiding media containing hard particles (which can scratch the sealing surface) and strong oxidants (such as concentrated nitric acid).

Seat

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The core advantages of the soft sealed center line clamp butterfly valve seat are reliable sealing (elastic fit without gaps), strong installation adaptability (clamp type does not require flange positioning), corrosion and wear resistance (compatible with high-quality soft materials such as EPDM/PTFE), and integrated structure (anti detachment), with low opening and closing friction (extending sealing life).

Stem

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The valve stem is easy to disassemble and maintain (without the need to disassemble the valve as a whole), with higher sealing reliability (to avoid leakage at the valve stem through the shaft), high machining and assembly accuracy, suitable for large-diameter valves, and reduces the risk of deformation of long valve stems.

Actuators

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pneumatic actuator or electric actuator

Controls

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limit switch box, solenoid valve, Air filter pressure reducing valve, valve positioner

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