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Page 64
蝶阀
BUTTERFLY VALVES

美国斯毕尔公司
     

标准和真法兰结构
Standard & True Lug Design

工程规格说明书范文
Sample Engineering Specification

  所有热塑性塑料应该是蝶阀类型,其结构材料采用PVC类型I分类12454或CPVC类型IV分类23447。所有阀门阀座和O形环材质应该是Buna-N, EPDM或Viton®。阀座应该是无衬垫结构并连锁到阀体上。螺栓孔模式应该符合美国国家标准协会和美国材料实验协会ANSI/ASME B16.5 Class 150标准。阀瓣应该采用偏心结构,并配置与流体介质完全隔离的316L不锈钢阀杆及316不锈钢五金件。杠杆操作的阀门应该配置高强度抗冲击聚丙烯手柄,并内置锁定装置。齿轮操作阀门应该配置位置指示器和高强度抗冲击聚丙烯手轮。阀门阀体应该可配置现场安装的法兰内嵌件或工厂安装的法兰内嵌件,或真法兰结构。蝶阀法兰材质应该是不锈钢或镀锌钢。在水温23oC条件下,蝶阀压力等级应该是150 psi,并由美国斯毕尔制造公司制造。
  All thermoplastic valves shall be Butterfly type constructed from PVC Type I Cell Classification 12454 or CPVC Type IV Cell Classification 23447. All valve seats and O-rings shall be Buna-N, EPDM or Viton®. Seat shall be a non-liner type interlocked to valve body. Bolt hole patterns shall conform to ANSI/ASME B16.5 Class 150. Disc shall be offset design with fully isolated Type 316L stainless steel stem and Type 316 stainless steel hardware. Lever operated valves shall be equipped with high impact polypropylene handle having built-in lockout capability. Gear operated valves shall be equipped with position indicator and high impact polypropylene handwheel. Valve bodies shall accept field installable lug inserts or shall be factory installed lug inserts, or the True Lug type. Lugs shall be stainless steel or zine plated steel. Valves shall be pressure rated at 150 psi for water at 73oF, as manufactured by Spears® Manufacturing Company.

 

特点 - PVC, CPVC
Features - PVC, CPVC

  美国斯毕尔公司专利蝶阀结构设计不采用传统的衬垫阀座的阀门结构,消除阀座蠕变,降低操作力矩,并提供积极有效的密封功能。特别适用于流量控制和节流应用,这种高性能蝶阀提供完整的各种选项,能够广泛应用于工业和化工处理应用领域。可提供国际管道标准IPS通径DN40 ~ DN300,标准或真法兰(工厂安装法兰)结构的蝶阀。
  Spears® patented Butterfly Valve design departs from traditional liner-seat type valve to eliminate seat creep, reduce operating torque and provide positive seal-off. Ideally suited for flow control or throttling, this high-performance valve is offered with a full variety of options for greater application versatility in industrial and chemical processing applications. Available in IPS sizes 11/2" - 12" in Standard or True Lug (factory installed lugs) style.

  • 特殊的偏置阀瓣能够迅速从阀座上升起,以减少磨损,降低操作力矩。
    Special off-set Disc lifts quickly from seat to reduce wear and reduce operating torque.
  • 专利的有限接触阀座结构创造了自由行程 - 消除阀座蠕变、突出和磨损现象的产生。不需要完全拆卸阀门也能够进行现场更换。
    Patented Limited Contact Seat design provides free travel - eliminates seat creep, extrusion and wear. Field replaceable without full valve disassembly.
  • 阀体和阀座的连锁结构防止被冲洗出或吹出。
    Interlocking Body & Seat prevents wash-out or blow-out.
  • Buna-N, EPDM或Viton®材质的阀座和密封
    Buna-N, EPDM or Viton® Seat & Seals
  • 与流体介质完全隔离的实心316L不锈钢阀杆
    Fully Isolated Solid Type 316L Stainless Steel Stem
  • 可反转的高强度抗冲击聚丙烯杠杆手柄配置7个位置止动装置,并内置锁定装置(标准手柄只适用于DN40 ~ DN200通径的阀门;通径DN250以上的阀门没有配置这种手柄)。
    Reversible High Impact Polypropylene Lever Handle with 7-Position stops & Built-in Lockout (standard handle on 11/2" - 8" valves; not available on 10" & larger valves)
  • 高效的齿轮操作机构,其外壳材质为铸铝,并配置聚丙烯手轮和内置位置指示器(适用于所有通径的蝶阀,对于通径DN250以上的蝶阀来说是标准配置。)
    High Efficiency Gear Operator with Cast Aluminum Housing, Polypropylene Handwheel, and Built-in Position Indicator (available for all sizes; standard on 10" & larger valves)
  • 法兰内嵌结构蝶阀可选择工厂安装316不锈钢或镀锌铁钢法兰内嵌件。
    Lug Insert Style valve has factory installed SS316 or zinc plated lug inserts.
  • 标准蝶阀可采用现场安装的法兰内嵌套间选项
    Standard valve accepts field-installable Lug Inserts Set option
  • 真法兰结构具有工厂安装的镀锌钢或316不锈钢法兰,特别适用于连接到阀门两侧。
    True Lug design has factory installed zinc plated or SS 316 lugs and is specially designed for connection to either side of valve.
  • 压力等级为150 psi @ 23oC,包括管道终端或末端应用场合
    Pressure Rated to 150 psi @ 73oF including Dead-End Service.
  • 美国国家标准协会和美国机械工程师协会ANSI/ASME B16.5 Class 150螺栓模式
    ANSI/ASME B16.5 Class 150 Bolt Pattern
  • 阀门采用EPDM材质的密封和阀座,获得美国国家卫生基金会NSF认证,可用于饮用水
    Valves with EPDM Seals & Seats NSF Certified for Potable water use.

备选附件
Optional Accessories

  • Teflon®涂敷阀杆
    Teflon® Coated Stem
  • 阀杆加长组件
    Stem Extension Kit
  • PTFE阀座套管
    PTFE Seat Sleeve
  • 杠杆手柄组件(通径DN40 ~ DN200蝶阀的标准配置)
    Lever Handle Kit (standard on 11/2" - 8" valves)
  • 齿轮操作机构组件(通径DN250以上的阀门的标准配置)
    Gear Operator Kit (standard on 10" & larger valves)
  • T形手柄组件
    T-Handle Kit
  • 现场安装的法兰内嵌套间(用于标准阀门)
    Field Installable Lug Insert Sets (for Standard valve)
  • 快速手柄(用于齿轮操作的蝶阀)
    Speed Handle (for gear operated valves)
  • 2英寸方形/T形操作螺母(用于齿轮操作蝶阀)
    2" Square/T-Style Operator Nut (for gear operated valves)
  • 链轮操作组件(用于齿轮操作蝶阀)
    Chainwheel Operator Kit (for gear operated valves)
  • 积极有效的阀杆止动装置(用于齿轮操作蝶阀)
    Positive Stem Stop (for gear operated valves)
  • 潜水齿轮操作机构
    Submersible Gear Operators

  *参阅“蝶阀附件”章节,了解各个产品的详细资料。
  *See "BUTTERFLY VALVE ACCESSORIES" section for details individual products.

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