工程规格说明书范文
Sample Engineering Specification
所有热塑性塑料隔膜阀应该是偃式结构，其结构材料应该采用PVC类型1，ASTM D 1784分类12454或CPVC类型IV, ASTM D
1784分类23447，或聚丙烯ASTM D 4101。所有隔膜材质应该是EPDM, Viton®或EPDM或Viton®粘结衬背的PTFE。所有阀门应该内置位置指示器及聚丙烯手轮。所有真活接类型阀门活接头螺母应该采用锯齿螺纹。在水温23oC条件下，所有PVC和CPVC材质、通径DN15至DN50阀门压力等级应该是235
psi，所有通径DN65至DN100阀门和所有法兰阀门压力等级应该是150 psi，所有通径DN150阀门压力等级应该是100 psi，所有通径DN200阀门压力等级应该是75
psi。在水温23oC条件下，所有聚丙烯阀门压力等级应该是150 psi，并由美国斯毕尔制造公司制造。
All thermoplastic Diaphragm valves shall be Weir-type
constructed from PVC Type I, ASTM D 1784 Cell Classification 12454 or CPVC
Type IV, ASTM D1784 Cell Classification 23447, or Polypropylene, ASTM D
4101. All diaphragms shall be EPDM, Viton® or PTFE with EPDM or Viton®
bonded backing. All valves shall have built-in position indicator with polypropylene
handwheel. All True Union style valve union nuts shall have Buttress threads.
All PVC and CPVC 1/2" through 2" valves shall
be pressure rated to 235 psi, all 21/2" through
4" and all flanged valves shall be pressure rated to 150 psi, all 6"
valves shall be pressure rated to 100 psi, and all 8" valves shall
be pressure rated to 75 psi for water at 73oF. All Polypropylene
valves shall be pressure rated to 150 psi for water at 73oF,
as manufactured by Spears® Manufacturing Company. |
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特点 - PVC, CPVC和聚丙烯
Features - PVC, CPVC & PP
这种性能全面的阀门设计为工业、化工和水处理应用领域提供精确节流控制和关闭功能。偃式结构能够消除滞留在阀门内的流体介质，特别适用于处理带有悬浮颗粒的流体，粘性流体和泥浆。可提供PVC,
CPVC和玻璃纤维填充聚丙烯作为隔膜阀多样性的材质选项。PVC和CPVC材质、通径DN15 ~ DN50的阀门可提供法兰阀体、套管阀体或真活接类型承插和螺纹连接端口或特殊加固（SR）螺纹连接端口，通径DN65
~ DN200阀门提供承插连接端口，通径DN15至DN50阀门还可提供英制螺纹连接端口。
This full-featured valve is engineered to provide
accurate throttling control and shutoff for industrial, chemical and water
treatment applications. Weir-type design eliminates entrapped fluids in
valve and is excellent for handling liquids with suspended solids, viscous
fluids and slurries. Available in PVC, CPVC and Glass Filled Polypropylene
with a variety of Diaphragm material options. PVC & CPVC 1/2"
- 2" valves with Flanged Body, Spigot Body or True Union style Socket
& Threaded ends or Optional Special Reinforced (SR) Threads, and sizes
21/2" - 8" with Flanged Body. Polypropylene
1/2" - 2" valves with True Union style
Special Reinforced (SR) Threaded ends and sizes 21/2"
- 8" socket and BSP thread sizes 1/2"
through 2".
- 真活接类型阀门配置锯齿螺纹活接头螺母 - 可与美国斯毕尔公司真活接2000球阀和活接头2000管道活接头相匹配。
True Union Style with Buttress Thread Union Nuts
- Mate with Spears® True Union 2000 Ball valves and Union 2000 Pipe
Unions.
- EPDM, Viton®，或弹性材料（EPDM或Viton®）粘结PTFE隔膜。
EPDM, Viton®, or Elastomer (EPDM or Viton®)
Bonded PTFE Diaphragms.
- PVC和CPVC材质、通径DN15 ~ DN50阀门的压力等级为235 psi @ 23oC, 通径DN65
~ DN100阀门和所有法兰阀门压力等级为150 psi @ 23oC，通径DN150阀门压力等级为100 psi，而通径DN200阀门压力等级为75
psi @ 23oC。
PVC & CPVC Sizes 1/2"
- 2" Pressure Rated to 235 psi @ 73oF, Sizes 21/2"
- 4" and all flanged Pressure Rated to 150 psi @ 73oF,
6" Pressure Rated to 100 psi and 8" to 75 psi @ 73oF
- 易于抓握、高强度抗冲击聚丙烯手轮
Easy-Grip, High Impact Polypropylene Handwheel
- 内置、清晰可见的位置指示器
Built-in, Clear-View Position Indicator
- 不锈钢外部五金件
Stainless Steel External Hardware
- 完全可维修、可更换部件
Fully Serviceable, Replaceable Components
- 适用于真空应用场合
Suitable for Vacuum Service
- 采用无硅树脂润滑剂
（在与流体介质接触的地方没有润滑剂）
Assembled with Silicone-Free Lubricants
(no lubricant in media contact area)
特殊选项
Special Options
- Hypalon®（CSM）隔膜
Hypalon® (CSM) Diaphragms
- 天然聚丙烯阀体
Natural Polypropylene Body
- 电动或气动执行机构
Electric or Pneumatic Actuation
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