工程规格说明书范文
Sample Engineering Specification
所有热塑性塑料球阀应该是2000紧凑型球阀，制造标准符合美国材料实验协会ASTM F 1970标准，结构材料采用PVC类型I，ASTM
D 1784分类12454或CPVC类型IV，ASTM D 1784分类23447。所有O形环材质应该是EPDM或Viton®。所有阀门应该配置Safe-T-Shear®阀杆并带O形环阀杆密封。所有手柄材质应该是聚丙烯。所有阀门应该获得美国国家卫生基金会NSF国际部认证可用于饮用水。在水温23oC条件下，所有通径DN15~DN50的阀门压力等级为235
psi，并由美国斯毕尔制造公司制造。
All thermoplastic ball valves shall be 2000 Compact
type manufactured to ASTM F 1970 and constructed from PVC Type I, ASTM
D 1784 Cell Classification 12454 or CPVC Type IV, ASTM D 1784 Cell Classification
23447. All O-rings shall be EPDM or Viton®. All valves shall have
Safe-T-Shear® stem with O-ring stem seal. All handles shall be polypropylene.
All valves shall be certified by NSF International for use with potable
water. All 1/2" - 2" valves shall be pressure
rated at 235 psi for water at 73oF, as manufactured by Spears®
Manufacturing Company. |
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特点 - PVC，CPVC
Feartures - PVC, CPVC
经济，高度低，90度旋转关闭阀，特别适用于一般应用场合和许多OEM产品。这些PVC和CPVC阀门可提供国际管道标准通径DN15至DN50、连接端口为承插和常规螺纹的阀门。
Economical, low profile quarter-turn shutoff valve
is excellent for general purpose and many O.E.M applications. PVC and
CPVC valves are available in IPS sizes 1/2"
through 2" with socket and regular thread.
- 工业级，无需维护的密封装置
Industrial Grade, Maintenance-Free Sealed Unit
- 新型执行机构预备阀体 - 可接受美国斯毕尔公司改进小型安装执行机构安装组件
New Actuator-Ready Body - Accepts Spears®
Improved Mini-Mount Actuator Mounting Kits
- 新型双重O形环阀杆密封
New Double O-ring Stem Seal
- 美国斯毕尔公司Safe-T-Shear®商标阀杆
Spears® Safe-T-Shear® Stem
- PTFE材质自我调节浮动阀座
PTFE Self Adjusting Floating Seats
- EPDM或Viton®材质O形环密封
EPDM or Viton® O-ring Seals
- 压力等级为235 psi @ 23oC
Full 235 psi Pressure Rating @ 73oF
- 美国国家卫生基金会NSF认证可用于饮用水
NSF Certified for Use with Potable Water
- 适用于真空应用场合
Suitable for Vacuum Service
- 按照美国材料实验协会ASTM IPS标准制造，通径DN15~DN50阀门连接端口为承插或螺纹。
Produced in ASTM IPS sizes 1/2"
- 2" with Socket or Threaded End Connectors.
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