聚丙烯
Polypropylene
工程规格说明书范文
Sample Engineering Specification
所有热塑性塑料阀门应该是蝶阀结构，其结构材料应该采用聚丙烯，ASTM D 4101。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。阀瓣应该是偏置结构，并配置与流体介质完全隔离的316L不锈钢阀杆和316不锈钢五金件。杠杆操作蝶阀应该配置高强度抗冲击聚丙烯手柄，并内置所定装置。齿轮操作蝶阀应该配置位置指示器和高强度抗冲击聚丙烯手轮。在水温23oC条件下，蝶阀的压力等级请参阅表格，并由美国斯毕尔制造公司制造。
All thermoplastic valves shall be Butterfly type
constructed from Polypropylene, ASTM D 4101. 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 pattern 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. Valves shall be pressure
rated at [see table] for water at 73 oF, as manufactured by
Spears® Manufacturing Company.
材料注释：抗紫外线聚丙烯带有浅褐色颜料，通径从DN40至DN300蝶阀的聚丙烯有玻璃纤维加固，而通径DN350至DN600蝶阀的聚丙烯材料则没有玻璃纤维加固。
Material Note: UV Stabilized Polypropylene with
beige pigment sizes 11/2" - 12" are glass
reinforced, sizes 14" - 24" are not.
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特点
Features
美国斯毕尔公司专利蝶阀不采用传统的衬垫阀座阀门的设计结构，从而避免了阀座蠕变，减小了操作力矩，并提供积极有效的密封效果。广泛的耐化学品特性使得聚丙烯特别适用于工业和化工处理应用领域。这种高性能蝶阀适用于流量控制和节流应用，可提供完整的选项以适应要求更高的应用通用性。可提供国际管道标准IPS通径DN40
~ DN600的蝶阀。根据用户的定制，也可生产提供通径DN750至DN1500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. Broad range of chemical
resistance makes Polypropylene well suited for industrial and chemical
processing applications. Designed for flow control or throttling, this
high-performance valve is offered with a full variety of options for greater
application versatility. Available in IPS sizes 11/2"
- 24" with custom producted 30" to 60" valves available.
- 抗紫外线的聚丙烯材料结构
UV Stabilized Polypropylene Construction
- 特殊的偏置阀瓣能够迅速地从阀座上提升，较少磨损，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提供自由行程 - 避免了阀座蠕变、突出和磨损现象的发生。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刷出或被吹出
Interlocking Body & Seat prevents wash-out
or blow-out.
- Buna-N, EPDM或Viton®材质阀座和密封
Buna-N, EPDM or Viton® Seat & Seals
- 实心316L不锈钢阀杆，完全与所处理的流体介质隔离
Solid Type 316L Stainless Steel Stem, fully isolated
from process fluids
- 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（在通径DN40 ~ DN200蝶阀上是标准配置；而通径DN250以上的蝶阀不配置这种杠杆手柄）
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，以及内置位置指示器（可用于所有通径的蝶阀；在通径DN250以上的蝶阀是标准配置）
High Efficiecy Gear Operator with Cast Aluminum
Housing, Polypropylene Handwheel, and Built-in Position Indicator (available
for all sizes; standard on 10" & larger valves)
- 压力等级包括管道终端或末端应用场合（参阅图表）
Pressure ratings include Dead-End Service (See
Chart).
- 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
备选附件
Optional Accessories
- Teflon®涂敷阀杆
Teflon® Coated Stem
- 阀杆加长组件
Stem Extension Kit
- PTFE材质阀座套管（用于通径DN300以下的蝶阀）
PTFE Seat Sleeve (through 12" size)
- 杠杆手柄组件（在通径DN40 ~ DN200蝶阀上是标准配置）
Lever Handle Kit (standard on 11/2"
- 8" valves)
- 齿轮操作机构组件（在通径DN250以上蝶阀上是标准配置）
Gear Operator Kit (standard on 10" &
larger valves)
- T形手柄组件
T-Handle Kit
- 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（用于齿轮操作的蝶阀）
2" Square/T-Style Operator Nut (for gear
operated valves)
- 链轮操作组件（用于齿轮操作的蝶阀）
Chainwheel Operator Kit (for gear operated valves)
- 积极有效的阀杆止动装置（用于齿轮操作的蝶阀）
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. |
